// SPDX-License-Identifier: GPL-2.0
/*
 *      drivers/video/aty/radeon_pm.c
 *
 *      Copyright 2003,2004 Ben. Herrenschmidt <benh@kernel.crashing.org>
 *      Copyright 2004 Paul Mackerras <paulus@samba.org>
 *
 *      This is the power management code for ATI radeon chipsets. It contains
 *      some dynamic clock PM enable/disable code similar to what X.org does,
 *      some D2-state (APM-style) sleep/wakeup code for use on some PowerMacs,
 *      and the necessary bits to re-initialize from scratch a few chips found
 *      on PowerMacs as well. The later could be extended to more platforms
 *      provided the memory controller configuration code be made more generic,
 *      and you can get the proper mode register commands for your RAMs.
 *      Those things may be found in the BIOS image...
 */

#include "radeonfb.h"

#include <linux/console.h>
#include <linux/agp_backend.h>

#ifdef CONFIG_PPC_PMAC
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/pmac_feature.h>
#endif

#include "ati_ids.h"

/*
 * Workarounds for bugs in PC laptops:
 * - enable D2 sleep in some IBM Thinkpads
 * - special case for Samsung P35
 *
 * Whitelist by subsystem vendor/device because
 * its the subsystem vendor's fault!
 */

#if defined(CONFIG_PM) && defined(CONFIG_X86)
static void radeon_reinitialize_M10(struct radeonfb_info *rinfo);

struct radeon_device_id {
        const char *ident;                     /* (arbitrary) Name */
        const unsigned short subsystem_vendor; /* Subsystem Vendor ID */
        const unsigned short subsystem_device; /* Subsystem Device ID */
        const enum radeon_pm_mode pm_mode_modifier; /* modify pm_mode */
        const reinit_function_ptr new_reinit_func;   /* changed reinit_func */
};

#define BUGFIX(model, sv, sd, pm, fn) { \
        .ident = model, \
        .subsystem_vendor = sv, \
        .subsystem_device = sd, \
        .pm_mode_modifier = pm, \
        .new_reinit_func  = fn  \
}

static struct radeon_device_id radeon_workaround_list[] = {
        BUGFIX("IBM Thinkpad R32",
               PCI_VENDOR_ID_IBM, 0x1905,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad R40",
               PCI_VENDOR_ID_IBM, 0x0526,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad R40",
               PCI_VENDOR_ID_IBM, 0x0527,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad R50/R51/T40/T41",
               PCI_VENDOR_ID_IBM, 0x0531,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad R51/T40/T41/T42",
               PCI_VENDOR_ID_IBM, 0x0530,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad T30",
               PCI_VENDOR_ID_IBM, 0x0517,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad T40p",
               PCI_VENDOR_ID_IBM, 0x054d,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad T42",
               PCI_VENDOR_ID_IBM, 0x0550,
               radeon_pm_d2, NULL),
        BUGFIX("IBM Thinkpad X31/X32",
               PCI_VENDOR_ID_IBM, 0x052f,
               radeon_pm_d2, NULL),
        BUGFIX("Samsung P35",
               PCI_VENDOR_ID_SAMSUNG, 0xc00c,
               radeon_pm_off, radeon_reinitialize_M10),
        BUGFIX("Acer Aspire 2010",
               PCI_VENDOR_ID_AI, 0x0061,
               radeon_pm_off, radeon_reinitialize_M10),
        BUGFIX("Acer Travelmate 290D/292LMi",
               PCI_VENDOR_ID_AI, 0x005a,
               radeon_pm_off, radeon_reinitialize_M10),
        { .ident = NULL }
};

static int radeon_apply_workarounds(struct radeonfb_info *rinfo)
{
        struct radeon_device_id *id;

        for (id = radeon_workaround_list; id->ident != NULL; id++ )
                if ((id->subsystem_vendor == rinfo->pdev->subsystem_vendor ) &&
                    (id->subsystem_device == rinfo->pdev->subsystem_device )) {

                        /* we found a device that requires workaround */
                        printk(KERN_DEBUG "radeonfb: %s detected"
                               ", enabling workaround\n", id->ident);

                        rinfo->pm_mode |= id->pm_mode_modifier;

                        if (id->new_reinit_func != NULL)
                                rinfo->reinit_func = id->new_reinit_func;

                        return 1;
                }
        return 0;  /* not found */
}

#else  /* defined(CONFIG_PM) && defined(CONFIG_X86) */
static inline int radeon_apply_workarounds(struct radeonfb_info *rinfo)
{
        return 0;
}
#endif /* defined(CONFIG_PM) && defined(CONFIG_X86) */



static void radeon_pm_disable_dynamic_mode(struct radeonfb_info *rinfo)
{
        u32 tmp;

        /* RV100 */
        if ((rinfo->family == CHIP_FAMILY_RV100) && (!rinfo->is_mobility)) {
                if (rinfo->has_CRTC2) {
                        tmp = INPLL(pllSCLK_CNTL);
                        tmp &= ~SCLK_CNTL__DYN_STOP_LAT_MASK;
                        tmp |= SCLK_CNTL__CP_MAX_DYN_STOP_LAT | SCLK_CNTL__FORCEON_MASK;
                        OUTPLL(pllSCLK_CNTL, tmp);
                }
                tmp = INPLL(pllMCLK_CNTL);
                tmp |= (MCLK_CNTL__FORCE_MCLKA |
                        MCLK_CNTL__FORCE_MCLKB |
                        MCLK_CNTL__FORCE_YCLKA |
                        MCLK_CNTL__FORCE_YCLKB |
                        MCLK_CNTL__FORCE_AIC |
                        MCLK_CNTL__FORCE_MC);
                OUTPLL(pllMCLK_CNTL, tmp);
                return;
        }
        /* R100 */
        if (!rinfo->has_CRTC2) {
                tmp = INPLL(pllSCLK_CNTL);
                tmp |= (SCLK_CNTL__FORCE_CP     | SCLK_CNTL__FORCE_HDP  |
                        SCLK_CNTL__FORCE_DISP1  | SCLK_CNTL__FORCE_TOP  |
                        SCLK_CNTL__FORCE_E2     | SCLK_CNTL__FORCE_SE   |
                        SCLK_CNTL__FORCE_IDCT   | SCLK_CNTL__FORCE_VIP  |
                        SCLK_CNTL__FORCE_RE     | SCLK_CNTL__FORCE_PB   |
                        SCLK_CNTL__FORCE_TAM    | SCLK_CNTL__FORCE_TDM  |
                        SCLK_CNTL__FORCE_RB);
                OUTPLL(pllSCLK_CNTL, tmp);
                return;
        }
        /* RV350 (M10/M11) */
        if (rinfo->family == CHIP_FAMILY_RV350) {
                /* for RV350/M10/M11, no delays are required. */
                tmp = INPLL(pllSCLK_CNTL2);
                tmp |= (SCLK_CNTL2__R300_FORCE_TCL |
                        SCLK_CNTL2__R300_FORCE_GA  |
                        SCLK_CNTL2__R300_FORCE_CBA);
                OUTPLL(pllSCLK_CNTL2, tmp);

                tmp = INPLL(pllSCLK_CNTL);
                tmp |= (SCLK_CNTL__FORCE_DISP2          | SCLK_CNTL__FORCE_CP           |
                        SCLK_CNTL__FORCE_HDP            | SCLK_CNTL__FORCE_DISP1        |
                        SCLK_CNTL__FORCE_TOP            | SCLK_CNTL__FORCE_E2           |
                        SCLK_CNTL__R300_FORCE_VAP       | SCLK_CNTL__FORCE_IDCT         |
                        SCLK_CNTL__FORCE_VIP            | SCLK_CNTL__R300_FORCE_SR      |
                        SCLK_CNTL__R300_FORCE_PX        | SCLK_CNTL__R300_FORCE_TX      |
                        SCLK_CNTL__R300_FORCE_US        | SCLK_CNTL__FORCE_TV_SCLK      |
                        SCLK_CNTL__R300_FORCE_SU        | SCLK_CNTL__FORCE_OV0);
                OUTPLL(pllSCLK_CNTL, tmp);

                tmp = INPLL(pllSCLK_MORE_CNTL);
                tmp |= (SCLK_MORE_CNTL__FORCE_DISPREGS  | SCLK_MORE_CNTL__FORCE_MC_GUI  |
                        SCLK_MORE_CNTL__FORCE_MC_HOST);
                OUTPLL(pllSCLK_MORE_CNTL, tmp);

                tmp = INPLL(pllMCLK_CNTL);
                tmp |= (MCLK_CNTL__FORCE_MCLKA |
                        MCLK_CNTL__FORCE_MCLKB |
                        MCLK_CNTL__FORCE_YCLKA |
                        MCLK_CNTL__FORCE_YCLKB |
                        MCLK_CNTL__FORCE_MC);
                OUTPLL(pllMCLK_CNTL, tmp);

                tmp = INPLL(pllVCLK_ECP_CNTL);
                tmp &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb  |
                         VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb |
                         VCLK_ECP_CNTL__R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
                OUTPLL(pllVCLK_ECP_CNTL, tmp);

                tmp = INPLL(pllPIXCLKS_CNTL);
                tmp &= ~(PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb               |
                         PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb           |
                         PIXCLKS_CNTL__DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb  |
                         PIXCLKS_CNTL__R300_DVOCLK_ALWAYS_ONb           |
                         PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb          |
                         PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb             |
                         PIXCLKS_CNTL__R300_PIXCLK_DVO_ALWAYS_ONb       |
                         PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb           |
                         PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb           |
                         PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb     |
                         PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb       |
                         PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb          |
                         PIXCLKS_CNTL__R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
                OUTPLL(pllPIXCLKS_CNTL, tmp);

                return;
        }
        
        /* Default */

        /* Force Core Clocks */
        tmp = INPLL(pllSCLK_CNTL);
        tmp |= (SCLK_CNTL__FORCE_CP | SCLK_CNTL__FORCE_E2);

        /* XFree doesn't do that case, but we had this code from Apple and it
         * seem necessary for proper suspend/resume operations
         */
        if (rinfo->is_mobility) {
                tmp |=  SCLK_CNTL__FORCE_HDP|
                        SCLK_CNTL__FORCE_DISP1|
                        SCLK_CNTL__FORCE_DISP2|
                        SCLK_CNTL__FORCE_TOP|
                        SCLK_CNTL__FORCE_SE|
                        SCLK_CNTL__FORCE_IDCT|
                        SCLK_CNTL__FORCE_VIP|
                        SCLK_CNTL__FORCE_PB|
                        SCLK_CNTL__FORCE_RE|
                        SCLK_CNTL__FORCE_TAM|
                        SCLK_CNTL__FORCE_TDM|
                        SCLK_CNTL__FORCE_RB|
                        SCLK_CNTL__FORCE_TV_SCLK|
                        SCLK_CNTL__FORCE_SUBPIC|
                        SCLK_CNTL__FORCE_OV0;
        }
        else if (rinfo->family == CHIP_FAMILY_R300 ||
                   rinfo->family == CHIP_FAMILY_R350) {
                tmp |=  SCLK_CNTL__FORCE_HDP   |
                        SCLK_CNTL__FORCE_DISP1 |
                        SCLK_CNTL__FORCE_DISP2 |
                        SCLK_CNTL__FORCE_TOP   |
                        SCLK_CNTL__FORCE_IDCT  |
                        SCLK_CNTL__FORCE_VIP;
        }
        OUTPLL(pllSCLK_CNTL, tmp);
        radeon_msleep(16);

        if (rinfo->family == CHIP_FAMILY_R300 || rinfo->family == CHIP_FAMILY_R350) {
                tmp = INPLL(pllSCLK_CNTL2);
                tmp |=  SCLK_CNTL2__R300_FORCE_TCL |
                        SCLK_CNTL2__R300_FORCE_GA  |
                        SCLK_CNTL2__R300_FORCE_CBA;
                OUTPLL(pllSCLK_CNTL2, tmp);
                radeon_msleep(16);
        }

        tmp = INPLL(pllCLK_PIN_CNTL);
        tmp &= ~CLK_PIN_CNTL__SCLK_DYN_START_CNTL;
        OUTPLL(pllCLK_PIN_CNTL, tmp);
        radeon_msleep(15);

        if (rinfo->is_IGP) {
                /* Weird  ... X is _un_ forcing clocks here, I think it's
                 * doing backward. Imitate it for now...
                 */
                tmp = INPLL(pllMCLK_CNTL);
                tmp &= ~(MCLK_CNTL__FORCE_MCLKA |
                         MCLK_CNTL__FORCE_YCLKA);
                OUTPLL(pllMCLK_CNTL, tmp);
                radeon_msleep(16);
        }
        /* Hrm... same shit, X doesn't do that but I have to */
        else if (rinfo->is_mobility) {
                tmp = INPLL(pllMCLK_CNTL);
                tmp |= (MCLK_CNTL__FORCE_MCLKA |
                        MCLK_CNTL__FORCE_MCLKB |
                        MCLK_CNTL__FORCE_YCLKA |
                        MCLK_CNTL__FORCE_YCLKB);
                OUTPLL(pllMCLK_CNTL, tmp);
                radeon_msleep(16);

                tmp = INPLL(pllMCLK_MISC);
                tmp &=  ~(MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT|
                          MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT|
                          MCLK_MISC__MC_MCLK_DYN_ENABLE|
                          MCLK_MISC__IO_MCLK_DYN_ENABLE);
                OUTPLL(pllMCLK_MISC, tmp);
                radeon_msleep(15);
        }

        if (rinfo->is_mobility) {
                tmp = INPLL(pllSCLK_MORE_CNTL);
                tmp |=  SCLK_MORE_CNTL__FORCE_DISPREGS|
                        SCLK_MORE_CNTL__FORCE_MC_GUI|
                        SCLK_MORE_CNTL__FORCE_MC_HOST;
                OUTPLL(pllSCLK_MORE_CNTL, tmp);
                radeon_msleep(16);
        }

        tmp = INPLL(pllPIXCLKS_CNTL);
        tmp &= ~(PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb |
                 PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
                 PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb |
                 PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
                 PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb|
                 PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb|
                 PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb);
        OUTPLL(pllPIXCLKS_CNTL, tmp);
        radeon_msleep(16);

        tmp = INPLL( pllVCLK_ECP_CNTL);
        tmp &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
                 VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
        OUTPLL( pllVCLK_ECP_CNTL, tmp);
        radeon_msleep(16);
}

static void radeon_pm_enable_dynamic_mode(struct radeonfb_info *rinfo)
{
        u32 tmp;

        /* R100 */
        if (!rinfo->has_CRTC2) {
                tmp = INPLL(pllSCLK_CNTL);

                if ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) > CFG_ATI_REV_A13)
                    tmp &= ~(SCLK_CNTL__FORCE_CP        | SCLK_CNTL__FORCE_RB);
                tmp &= ~(SCLK_CNTL__FORCE_HDP           | SCLK_CNTL__FORCE_DISP1 |
                         SCLK_CNTL__FORCE_TOP           | SCLK_CNTL__FORCE_SE   |
                         SCLK_CNTL__FORCE_IDCT          | SCLK_CNTL__FORCE_RE   |
                         SCLK_CNTL__FORCE_PB            | SCLK_CNTL__FORCE_TAM  |
                         SCLK_CNTL__FORCE_TDM);
                OUTPLL(pllSCLK_CNTL, tmp);
                return;
        }

        /* M10/M11 */
        if (rinfo->family == CHIP_FAMILY_RV350) {
                tmp = INPLL(pllSCLK_CNTL2);
                tmp &= ~(SCLK_CNTL2__R300_FORCE_TCL |
                         SCLK_CNTL2__R300_FORCE_GA  |
                         SCLK_CNTL2__R300_FORCE_CBA);
                tmp |=  (SCLK_CNTL2__R300_TCL_MAX_DYN_STOP_LAT |
                         SCLK_CNTL2__R300_GA_MAX_DYN_STOP_LAT  |
                         SCLK_CNTL2__R300_CBA_MAX_DYN_STOP_LAT);
                OUTPLL(pllSCLK_CNTL2, tmp);

                tmp = INPLL(pllSCLK_CNTL);
                tmp &= ~(SCLK_CNTL__FORCE_DISP2 | SCLK_CNTL__FORCE_CP      |
                         SCLK_CNTL__FORCE_HDP   | SCLK_CNTL__FORCE_DISP1   |
                         SCLK_CNTL__FORCE_TOP   | SCLK_CNTL__FORCE_E2      |
                         SCLK_CNTL__R300_FORCE_VAP | SCLK_CNTL__FORCE_IDCT |
                         SCLK_CNTL__FORCE_VIP   | SCLK_CNTL__R300_FORCE_SR |
                         SCLK_CNTL__R300_FORCE_PX | SCLK_CNTL__R300_FORCE_TX |
                         SCLK_CNTL__R300_FORCE_US | SCLK_CNTL__FORCE_TV_SCLK |
                         SCLK_CNTL__R300_FORCE_SU | SCLK_CNTL__FORCE_OV0);
                tmp |= SCLK_CNTL__DYN_STOP_LAT_MASK;
                OUTPLL(pllSCLK_CNTL, tmp);

                tmp = INPLL(pllSCLK_MORE_CNTL);
                tmp &= ~SCLK_MORE_CNTL__FORCEON;
                tmp |=  SCLK_MORE_CNTL__DISPREGS_MAX_DYN_STOP_LAT |
                        SCLK_MORE_CNTL__MC_GUI_MAX_DYN_STOP_LAT |
                        SCLK_MORE_CNTL__MC_HOST_MAX_DYN_STOP_LAT;
                OUTPLL(pllSCLK_MORE_CNTL, tmp);

                tmp = INPLL(pllVCLK_ECP_CNTL);
                tmp |= (VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
                        VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
                OUTPLL(pllVCLK_ECP_CNTL, tmp);

                tmp = INPLL(pllPIXCLKS_CNTL);
                tmp |= (PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb         |
                        PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb     |
                        PIXCLKS_CNTL__DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
                        PIXCLKS_CNTL__R300_DVOCLK_ALWAYS_ONb            |
                        PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb    |
                        PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb       |
                        PIXCLKS_CNTL__R300_PIXCLK_DVO_ALWAYS_ONb        |
                        PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb     |
                        PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb     |
                        PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb      |
                        PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb        |
                        PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb           |
                        PIXCLKS_CNTL__R300_P2G2CLK_DAC_ALWAYS_ONb);
                OUTPLL(pllPIXCLKS_CNTL, tmp);

                tmp = INPLL(pllMCLK_MISC);
                tmp |= (MCLK_MISC__MC_MCLK_DYN_ENABLE |
                        MCLK_MISC__IO_MCLK_DYN_ENABLE);
                OUTPLL(pllMCLK_MISC, tmp);

                tmp = INPLL(pllMCLK_CNTL);
                tmp |= (MCLK_CNTL__FORCE_MCLKA | MCLK_CNTL__FORCE_MCLKB);
                tmp &= ~(MCLK_CNTL__FORCE_YCLKA  |
                         MCLK_CNTL__FORCE_YCLKB  |
                         MCLK_CNTL__FORCE_MC);

                /* Some releases of vbios have set DISABLE_MC_MCLKA
                 * and DISABLE_MC_MCLKB bits in the vbios table.  Setting these
                 * bits will cause H/W hang when reading video memory with dynamic
                 * clocking enabled.
                 */
                if ((tmp & MCLK_CNTL__R300_DISABLE_MC_MCLKA) &&
                    (tmp & MCLK_CNTL__R300_DISABLE_MC_MCLKB)) {
                        /* If both bits are set, then check the active channels */
                        tmp = INPLL(pllMCLK_CNTL);
                        if (rinfo->vram_width == 64) {
                            if (INREG(MEM_CNTL) & R300_MEM_USE_CD_CH_ONLY)
                                tmp &= ~MCLK_CNTL__R300_DISABLE_MC_MCLKB;
                            else
                                tmp &= ~MCLK_CNTL__R300_DISABLE_MC_MCLKA;
                        } else {
                            tmp &= ~(MCLK_CNTL__R300_DISABLE_MC_MCLKA |
                                     MCLK_CNTL__R300_DISABLE_MC_MCLKB);
                        }
                }
                OUTPLL(pllMCLK_CNTL, tmp);
                return;
        }

        /* R300 */
        if (rinfo->family == CHIP_FAMILY_R300 || rinfo->family == CHIP_FAMILY_R350) {
                tmp = INPLL(pllSCLK_CNTL);
                tmp &= ~(SCLK_CNTL__R300_FORCE_VAP);
                tmp |= SCLK_CNTL__FORCE_CP;
                OUTPLL(pllSCLK_CNTL, tmp);
                radeon_msleep(15);

                tmp = INPLL(pllSCLK_CNTL2);
                tmp &= ~(SCLK_CNTL2__R300_FORCE_TCL |
                         SCLK_CNTL2__R300_FORCE_GA  |
                         SCLK_CNTL2__R300_FORCE_CBA);
                OUTPLL(pllSCLK_CNTL2, tmp);
        }

        /* Others */

        tmp = INPLL( pllCLK_PWRMGT_CNTL);
        tmp &= ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK|
                 CLK_PWRMGT_CNTL__DISP_DYN_STOP_LAT_MASK|
                 CLK_PWRMGT_CNTL__DYN_STOP_MODE_MASK);
        tmp |= CLK_PWRMGT_CNTL__ENGINE_DYNCLK_MODE_MASK |
               (0x01 << CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT__SHIFT);
        OUTPLL( pllCLK_PWRMGT_CNTL, tmp);
        radeon_msleep(15);

        tmp = INPLL(pllCLK_PIN_CNTL);
        tmp |= CLK_PIN_CNTL__SCLK_DYN_START_CNTL;
        OUTPLL(pllCLK_PIN_CNTL, tmp);
        radeon_msleep(15);

        /* When DRI is enabled, setting DYN_STOP_LAT to zero can cause some R200
         * to lockup randomly, leave them as set by BIOS.
         */
        tmp = INPLL(pllSCLK_CNTL);
        tmp &= ~SCLK_CNTL__FORCEON_MASK;

        /*RAGE_6::A11 A12 A12N1 A13, RV250::A11 A12, R300*/
        if ((rinfo->family == CHIP_FAMILY_RV250 &&
             ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13)) ||
            ((rinfo->family == CHIP_FAMILY_RV100) &&
             ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) <= CFG_ATI_REV_A13))) {
                tmp |= SCLK_CNTL__FORCE_CP;
                tmp |= SCLK_CNTL__FORCE_VIP;
        }
        OUTPLL(pllSCLK_CNTL, tmp);
        radeon_msleep(15);

        if ((rinfo->family == CHIP_FAMILY_RV200) ||
            (rinfo->family == CHIP_FAMILY_RV250) ||
            (rinfo->family == CHIP_FAMILY_RV280)) {
                tmp = INPLL(pllSCLK_MORE_CNTL);
                tmp &= ~SCLK_MORE_CNTL__FORCEON;

                /* RV200::A11 A12 RV250::A11 A12 */
                if (((rinfo->family == CHIP_FAMILY_RV200) ||
                     (rinfo->family == CHIP_FAMILY_RV250)) &&
                    ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13))
                        tmp |= SCLK_MORE_CNTL__FORCEON;

                OUTPLL(pllSCLK_MORE_CNTL, tmp);
                radeon_msleep(15);
        }
        

        /* RV200::A11 A12, RV250::A11 A12 */
        if (((rinfo->family == CHIP_FAMILY_RV200) ||
             (rinfo->family == CHIP_FAMILY_RV250)) &&
            ((INREG(CNFG_CNTL) & CFG_ATI_REV_ID_MASK) < CFG_ATI_REV_A13)) {
                tmp = INPLL(pllPLL_PWRMGT_CNTL);
                tmp |= PLL_PWRMGT_CNTL__TCL_BYPASS_DISABLE;
                OUTPLL(pllPLL_PWRMGT_CNTL, tmp);
                radeon_msleep(15);
        }

        tmp = INPLL(pllPIXCLKS_CNTL);
        tmp |=  PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb |
                PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb|
                PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
                PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb|
                PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb|
                PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
                PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb;
        OUTPLL(pllPIXCLKS_CNTL, tmp);
        radeon_msleep(15);
                
        tmp = INPLL(pllVCLK_ECP_CNTL);
        tmp |=  VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb |
                VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb;
        OUTPLL(pllVCLK_ECP_CNTL, tmp);

        /* X doesn't do that ... hrm, we do on mobility && Macs */
#ifdef CONFIG_PPC
        if (rinfo->is_mobility) {
                tmp  = INPLL(pllMCLK_CNTL);
                tmp &= ~(MCLK_CNTL__FORCE_MCLKA |
                         MCLK_CNTL__FORCE_MCLKB |
                         MCLK_CNTL__FORCE_YCLKA |
                         MCLK_CNTL__FORCE_YCLKB);
                OUTPLL(pllMCLK_CNTL, tmp);
                radeon_msleep(15);

                tmp = INPLL(pllMCLK_MISC);
                tmp |=  MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT|
                        MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT|
                        MCLK_MISC__MC_MCLK_DYN_ENABLE|
                        MCLK_MISC__IO_MCLK_DYN_ENABLE;
                OUTPLL(pllMCLK_MISC, tmp);
                radeon_msleep(15);
        }
#endif /* CONFIG_PPC */
}

#ifdef CONFIG_PM

static void OUTMC( struct radeonfb_info *rinfo, u8 indx, u32 value)
{
        OUTREG( MC_IND_INDEX, indx | MC_IND_INDEX__MC_IND_WR_EN);       
        OUTREG( MC_IND_DATA, value);            
}

static u32 INMC(struct radeonfb_info *rinfo, u8 indx)
{
        OUTREG( MC_IND_INDEX, indx);                                    
        return INREG( MC_IND_DATA);
}

static void radeon_pm_save_regs(struct radeonfb_info *rinfo, int saving_for_d3)
{
        rinfo->save_regs[0] = INPLL(PLL_PWRMGT_CNTL);
        rinfo->save_regs[1] = INPLL(CLK_PWRMGT_CNTL);
        rinfo->save_regs[2] = INPLL(MCLK_CNTL);
        rinfo->save_regs[3] = INPLL(SCLK_CNTL);
        rinfo->save_regs[4] = INPLL(CLK_PIN_CNTL);
        rinfo->save_regs[5] = INPLL(VCLK_ECP_CNTL);
        rinfo->save_regs[6] = INPLL(PIXCLKS_CNTL);
        rinfo->save_regs[7] = INPLL(MCLK_MISC);
        rinfo->save_regs[8] = INPLL(P2PLL_CNTL);
        
        rinfo->save_regs[9] = INREG(DISP_MISC_CNTL);
        rinfo->save_regs[10] = INREG(DISP_PWR_MAN);
        rinfo->save_regs[11] = INREG(LVDS_GEN_CNTL);
        rinfo->save_regs[13] = INREG(TV_DAC_CNTL);
        rinfo->save_regs[14] = INREG(BUS_CNTL1);
        rinfo->save_regs[15] = INREG(CRTC_OFFSET_CNTL);
        rinfo->save_regs[16] = INREG(AGP_CNTL);
        rinfo->save_regs[17] = (INREG(CRTC_GEN_CNTL) & 0xfdffffff) | 0x04000000;
        rinfo->save_regs[18] = (INREG(CRTC2_GEN_CNTL) & 0xfdffffff) | 0x04000000;
        rinfo->save_regs[19] = INREG(GPIOPAD_A);
        rinfo->save_regs[20] = INREG(GPIOPAD_EN);
        rinfo->save_regs[21] = INREG(GPIOPAD_MASK);
        rinfo->save_regs[22] = INREG(ZV_LCDPAD_A);
        rinfo->save_regs[23] = INREG(ZV_LCDPAD_EN);
        rinfo->save_regs[24] = INREG(ZV_LCDPAD_MASK);
        rinfo->save_regs[25] = INREG(GPIO_VGA_DDC);
        rinfo->save_regs[26] = INREG(GPIO_DVI_DDC);
        rinfo->save_regs[27] = INREG(GPIO_MONID);
        rinfo->save_regs[28] = INREG(GPIO_CRT2_DDC);

        rinfo->save_regs[29] = INREG(SURFACE_CNTL);
        rinfo->save_regs[30] = INREG(MC_FB_LOCATION);
        rinfo->save_regs[31] = INREG(DISPLAY_BASE_ADDR);
        rinfo->save_regs[32] = INREG(MC_AGP_LOCATION);
        rinfo->save_regs[33] = INREG(CRTC2_DISPLAY_BASE_ADDR);

        rinfo->save_regs[34] = INPLL(SCLK_MORE_CNTL);
        rinfo->save_regs[35] = INREG(MEM_SDRAM_MODE_REG);
        rinfo->save_regs[36] = INREG(BUS_CNTL);
        rinfo->save_regs[39] = INREG(RBBM_CNTL);
        rinfo->save_regs[40] = INREG(DAC_CNTL);
        rinfo->save_regs[41] = INREG(HOST_PATH_CNTL);
        rinfo->save_regs[37] = INREG(MPP_TB_CONFIG);
        rinfo->save_regs[38] = INREG(FCP_CNTL);

        if (rinfo->is_mobility) {
                rinfo->save_regs[12] = INREG(LVDS_PLL_CNTL);
                rinfo->save_regs[43] = INPLL(pllSSPLL_CNTL);
                rinfo->save_regs[44] = INPLL(pllSSPLL_REF_DIV);
                rinfo->save_regs[45] = INPLL(pllSSPLL_DIV_0);
                rinfo->save_regs[90] = INPLL(pllSS_INT_CNTL);
                rinfo->save_regs[91] = INPLL(pllSS_TST_CNTL);
                rinfo->save_regs[81] = INREG(LVDS_GEN_CNTL);
        }

        if (rinfo->family >= CHIP_FAMILY_RV200) {
                rinfo->save_regs[42] = INREG(MEM_REFRESH_CNTL);
                rinfo->save_regs[46] = INREG(MC_CNTL);
                rinfo->save_regs[47] = INREG(MC_INIT_GFX_LAT_TIMER);
                rinfo->save_regs[48] = INREG(MC_INIT_MISC_LAT_TIMER);
                rinfo->save_regs[49] = INREG(MC_TIMING_CNTL);
                rinfo->save_regs[50] = INREG(MC_READ_CNTL_AB);
                rinfo->save_regs[51] = INREG(MC_IOPAD_CNTL);
                rinfo->save_regs[52] = INREG(MC_CHIP_IO_OE_CNTL_AB);
                rinfo->save_regs[53] = INREG(MC_DEBUG);
        }
        rinfo->save_regs[54] = INREG(PAMAC0_DLY_CNTL);
        rinfo->save_regs[55] = INREG(PAMAC1_DLY_CNTL);
        rinfo->save_regs[56] = INREG(PAD_CTLR_MISC);
        rinfo->save_regs[57] = INREG(FW_CNTL);

        if (rinfo->family >= CHIP_FAMILY_R300) {
                rinfo->save_regs[58] = INMC(rinfo, ixR300_MC_MC_INIT_WR_LAT_TIMER);
                rinfo->save_regs[59] = INMC(rinfo, ixR300_MC_IMP_CNTL);
                rinfo->save_regs[60] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_C0);
                rinfo->save_regs[61] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_C1);
                rinfo->save_regs[62] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_D0);
                rinfo->save_regs[63] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_D1);
                rinfo->save_regs[64] = INMC(rinfo, ixR300_MC_BIST_CNTL_3);
                rinfo->save_regs[65] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A0);
                rinfo->save_regs[66] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1);
                rinfo->save_regs[67] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B0);
                rinfo->save_regs[68] = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1);
                rinfo->save_regs[69] = INMC(rinfo, ixR300_MC_DEBUG_CNTL);
                rinfo->save_regs[70] = INMC(rinfo, ixR300_MC_DLL_CNTL);
                rinfo->save_regs[71] = INMC(rinfo, ixR300_MC_IMP_CNTL_0);
                rinfo->save_regs[72] = INMC(rinfo, ixR300_MC_ELPIDA_CNTL);
                rinfo->save_regs[96] = INMC(rinfo, ixR300_MC_READ_CNTL_CD);
        } else {
                rinfo->save_regs[59] = INMC(rinfo, ixMC_IMP_CNTL);
                rinfo->save_regs[65] = INMC(rinfo, ixMC_CHP_IO_CNTL_A0);
                rinfo->save_regs[66] = INMC(rinfo, ixMC_CHP_IO_CNTL_A1);
                rinfo->save_regs[67] = INMC(rinfo, ixMC_CHP_IO_CNTL_B0);
                rinfo->save_regs[68] = INMC(rinfo, ixMC_CHP_IO_CNTL_B1);
                rinfo->save_regs[71] = INMC(rinfo, ixMC_IMP_CNTL_0);
        }

        rinfo->save_regs[73] = INPLL(pllMPLL_CNTL);
        rinfo->save_regs[74] = INPLL(pllSPLL_CNTL);
        rinfo->save_regs[75] = INPLL(pllMPLL_AUX_CNTL);
        rinfo->save_regs[76] = INPLL(pllSPLL_AUX_CNTL);
        rinfo->save_regs[77] = INPLL(pllM_SPLL_REF_FB_DIV);
        rinfo->save_regs[78] = INPLL(pllAGP_PLL_CNTL);
        rinfo->save_regs[79] = INREG(PAMAC2_DLY_CNTL);

        rinfo->save_regs[80] = INREG(OV0_BASE_ADDR);
        rinfo->save_regs[82] = INREG(FP_GEN_CNTL);
        rinfo->save_regs[83] = INREG(FP2_GEN_CNTL);
        rinfo->save_regs[84] = INREG(TMDS_CNTL);
        rinfo->save_regs[85] = INREG(TMDS_TRANSMITTER_CNTL);
        rinfo->save_regs[86] = INREG(DISP_OUTPUT_CNTL);
        rinfo->save_regs[87] = INREG(DISP_HW_DEBUG);
        rinfo->save_regs[88] = INREG(TV_MASTER_CNTL);
        rinfo->save_regs[89] = INPLL(pllP2PLL_REF_DIV);
        rinfo->save_regs[92] = INPLL(pllPPLL_DIV_0);
        rinfo->save_regs[93] = INPLL(pllPPLL_CNTL);
        rinfo->save_regs[94] = INREG(GRPH_BUFFER_CNTL);
        rinfo->save_regs[95] = INREG(GRPH2_BUFFER_CNTL);
        rinfo->save_regs[96] = INREG(HDP_DEBUG);
        rinfo->save_regs[97] = INPLL(pllMDLL_CKO);
        rinfo->save_regs[98] = INPLL(pllMDLL_RDCKA);
        rinfo->save_regs[99] = INPLL(pllMDLL_RDCKB);
}

static void radeon_pm_restore_regs(struct radeonfb_info *rinfo)
{
        OUTPLL(P2PLL_CNTL, rinfo->save_regs[8] & 0xFFFFFFFE); /* First */
        
        OUTPLL(PLL_PWRMGT_CNTL, rinfo->save_regs[0]);
        OUTPLL(CLK_PWRMGT_CNTL, rinfo->save_regs[1]);
        OUTPLL(MCLK_CNTL, rinfo->save_regs[2]);
        OUTPLL(SCLK_CNTL, rinfo->save_regs[3]);
        OUTPLL(CLK_PIN_CNTL, rinfo->save_regs[4]);
        OUTPLL(VCLK_ECP_CNTL, rinfo->save_regs[5]);
        OUTPLL(PIXCLKS_CNTL, rinfo->save_regs[6]);
        OUTPLL(MCLK_MISC, rinfo->save_regs[7]);
        if (rinfo->family == CHIP_FAMILY_RV350)
                OUTPLL(SCLK_MORE_CNTL, rinfo->save_regs[34]);

        OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
        OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
        OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
        OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
        OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
        OUTREG(CNFG_MEMSIZE, rinfo->video_ram);

        OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
        OUTREG(DISP_PWR_MAN, rinfo->save_regs[10]);
        OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11]);
        OUTREG(LVDS_PLL_CNTL,rinfo->save_regs[12]);
        OUTREG(TV_DAC_CNTL, rinfo->save_regs[13]);
        OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
        OUTREG(CRTC_OFFSET_CNTL, rinfo->save_regs[15]);
        OUTREG(AGP_CNTL, rinfo->save_regs[16]);
        OUTREG(CRTC_GEN_CNTL, rinfo->save_regs[17]);
        OUTREG(CRTC2_GEN_CNTL, rinfo->save_regs[18]);
        OUTPLL(P2PLL_CNTL, rinfo->save_regs[8]);

        OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
        OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
        OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);
        OUTREG(ZV_LCDPAD_A, rinfo->save_regs[22]);
        OUTREG(ZV_LCDPAD_EN, rinfo->save_regs[23]);
        OUTREG(ZV_LCDPAD_MASK, rinfo->save_regs[24]);
        OUTREG(GPIO_VGA_DDC, rinfo->save_regs[25]);
        OUTREG(GPIO_DVI_DDC, rinfo->save_regs[26]);
        OUTREG(GPIO_MONID, rinfo->save_regs[27]);
        OUTREG(GPIO_CRT2_DDC, rinfo->save_regs[28]);
}

static void radeon_pm_disable_iopad(struct radeonfb_info *rinfo)
{               
        OUTREG(GPIOPAD_MASK, 0x0001ffff);
        OUTREG(GPIOPAD_EN, 0x00000400);
        OUTREG(GPIOPAD_A, 0x00000000);          
        OUTREG(ZV_LCDPAD_MASK, 0x00000000);
        OUTREG(ZV_LCDPAD_EN, 0x00000000);
        OUTREG(ZV_LCDPAD_A, 0x00000000);        
        OUTREG(GPIO_VGA_DDC, 0x00030000);
        OUTREG(GPIO_DVI_DDC, 0x00000000);
        OUTREG(GPIO_MONID, 0x00030000);
        OUTREG(GPIO_CRT2_DDC, 0x00000000);
}

static void radeon_pm_program_v2clk(struct radeonfb_info *rinfo)
{
        /* Set v2clk to 65MHz */
        if (rinfo->family <= CHIP_FAMILY_RV280) {
                OUTPLL(pllPIXCLKS_CNTL,
                         __INPLL(rinfo, pllPIXCLKS_CNTL)
                         & ~PIXCLKS_CNTL__PIX2CLK_SRC_SEL_MASK);
         
                OUTPLL(pllP2PLL_REF_DIV, 0x0000000c);
                OUTPLL(pllP2PLL_CNTL, 0x0000bf00);
        } else {
                OUTPLL(pllP2PLL_REF_DIV, 0x0000000c);
                INPLL(pllP2PLL_REF_DIV);
                OUTPLL(pllP2PLL_CNTL, 0x0000a700);
        }

        OUTPLL(pllP2PLL_DIV_0, 0x00020074 | P2PLL_DIV_0__P2PLL_ATOMIC_UPDATE_W);
        
        OUTPLL(pllP2PLL_CNTL, INPLL(pllP2PLL_CNTL) & ~P2PLL_CNTL__P2PLL_SLEEP);
        mdelay(1);

        OUTPLL(pllP2PLL_CNTL, INPLL(pllP2PLL_CNTL) & ~P2PLL_CNTL__P2PLL_RESET);
        mdelay( 1);

        OUTPLL(pllPIXCLKS_CNTL,
                (INPLL(pllPIXCLKS_CNTL) & ~PIXCLKS_CNTL__PIX2CLK_SRC_SEL_MASK)
                | (0x03 << PIXCLKS_CNTL__PIX2CLK_SRC_SEL__SHIFT));
        mdelay( 1);     
}

static void radeon_pm_low_current(struct radeonfb_info *rinfo)
{
        u32 reg;

        reg  = INREG(BUS_CNTL1);
        if (rinfo->family <= CHIP_FAMILY_RV280) {
                reg &= ~BUS_CNTL1_MOBILE_PLATFORM_SEL_MASK;
                reg |= BUS_CNTL1_AGPCLK_VALID | (1<<BUS_CNTL1_MOBILE_PLATFORM_SEL_SHIFT);
        } else {
                reg |= 0x4080;
        }
        OUTREG(BUS_CNTL1, reg);
        
        reg  = INPLL(PLL_PWRMGT_CNTL);
        reg |= PLL_PWRMGT_CNTL_SPLL_TURNOFF | PLL_PWRMGT_CNTL_PPLL_TURNOFF |
                PLL_PWRMGT_CNTL_P2PLL_TURNOFF | PLL_PWRMGT_CNTL_TVPLL_TURNOFF;
        reg &= ~PLL_PWRMGT_CNTL_SU_MCLK_USE_BCLK;
        reg &= ~PLL_PWRMGT_CNTL_MOBILE_SU;
        OUTPLL(PLL_PWRMGT_CNTL, reg);
        
        reg  = INREG(TV_DAC_CNTL);
        reg &= ~(TV_DAC_CNTL_BGADJ_MASK |TV_DAC_CNTL_DACADJ_MASK);
        reg |=TV_DAC_CNTL_BGSLEEP | TV_DAC_CNTL_RDACPD | TV_DAC_CNTL_GDACPD |
                TV_DAC_CNTL_BDACPD |
                (8<<TV_DAC_CNTL_BGADJ__SHIFT) | (8<<TV_DAC_CNTL_DACADJ__SHIFT);
        OUTREG(TV_DAC_CNTL, reg);
        
        reg  = INREG(TMDS_TRANSMITTER_CNTL);
        reg &= ~(TMDS_PLL_EN | TMDS_PLLRST);
        OUTREG(TMDS_TRANSMITTER_CNTL, reg);

        reg = INREG(DAC_CNTL);
        reg &= ~DAC_CMP_EN;
        OUTREG(DAC_CNTL, reg);

        reg = INREG(DAC_CNTL2);
        reg &= ~DAC2_CMP_EN;
        OUTREG(DAC_CNTL2, reg);
        
        reg  = INREG(TV_DAC_CNTL);
        reg &= ~TV_DAC_CNTL_DETECT;
        OUTREG(TV_DAC_CNTL, reg);
}

static void radeon_pm_setup_for_suspend(struct radeonfb_info *rinfo)
{

        u32 sclk_cntl, mclk_cntl, sclk_more_cntl;

        u32 pll_pwrmgt_cntl;
        u32 clk_pwrmgt_cntl;
        u32 clk_pin_cntl;
        u32 vclk_ecp_cntl; 
        u32 pixclks_cntl;
        u32 disp_mis_cntl;
        u32 disp_pwr_man;
        u32 tmp;
        
        /* Force Core Clocks */
        sclk_cntl = INPLL( pllSCLK_CNTL);
        sclk_cntl |=    SCLK_CNTL__IDCT_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__VIP_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__RE_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__PB_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__TAM_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__TDM_MAX_DYN_STOP_LAT|
                        SCLK_CNTL__RB_MAX_DYN_STOP_LAT|
                        
                        SCLK_CNTL__FORCE_DISP2|
                        SCLK_CNTL__FORCE_CP|
                        SCLK_CNTL__FORCE_HDP|
                        SCLK_CNTL__FORCE_DISP1|
                        SCLK_CNTL__FORCE_TOP|
                        SCLK_CNTL__FORCE_E2|
                        SCLK_CNTL__FORCE_SE|
                        SCLK_CNTL__FORCE_IDCT|
                        SCLK_CNTL__FORCE_VIP|
                        
                        SCLK_CNTL__FORCE_PB|
                        SCLK_CNTL__FORCE_TAM|
                        SCLK_CNTL__FORCE_TDM|
                        SCLK_CNTL__FORCE_RB|
                        SCLK_CNTL__FORCE_TV_SCLK|
                        SCLK_CNTL__FORCE_SUBPIC|
                        SCLK_CNTL__FORCE_OV0;
        if (rinfo->family <= CHIP_FAMILY_RV280)
                sclk_cntl |= SCLK_CNTL__FORCE_RE;
        else
                sclk_cntl |= SCLK_CNTL__SE_MAX_DYN_STOP_LAT |
                        SCLK_CNTL__E2_MAX_DYN_STOP_LAT |
                        SCLK_CNTL__TV_MAX_DYN_STOP_LAT |
                        SCLK_CNTL__HDP_MAX_DYN_STOP_LAT |
                        SCLK_CNTL__CP_MAX_DYN_STOP_LAT;

        OUTPLL( pllSCLK_CNTL, sclk_cntl);

        sclk_more_cntl = INPLL(pllSCLK_MORE_CNTL);
        sclk_more_cntl |=       SCLK_MORE_CNTL__FORCE_DISPREGS |
                                SCLK_MORE_CNTL__FORCE_MC_GUI |
                                SCLK_MORE_CNTL__FORCE_MC_HOST;

        OUTPLL(pllSCLK_MORE_CNTL, sclk_more_cntl);              

        
        mclk_cntl = INPLL( pllMCLK_CNTL);
        mclk_cntl &= ~( MCLK_CNTL__FORCE_MCLKA |
                        MCLK_CNTL__FORCE_MCLKB |
                        MCLK_CNTL__FORCE_YCLKA |
                        MCLK_CNTL__FORCE_YCLKB |
                        MCLK_CNTL__FORCE_MC
                      );        
        OUTPLL( pllMCLK_CNTL, mclk_cntl);
        
        /* Force Display clocks */
        vclk_ecp_cntl = INPLL( pllVCLK_ECP_CNTL);
        vclk_ecp_cntl &= ~(VCLK_ECP_CNTL__PIXCLK_ALWAYS_ONb
                           | VCLK_ECP_CNTL__PIXCLK_DAC_ALWAYS_ONb);
        vclk_ecp_cntl |= VCLK_ECP_CNTL__ECP_FORCE_ON;
        OUTPLL( pllVCLK_ECP_CNTL, vclk_ecp_cntl);
        
        
        pixclks_cntl = INPLL( pllPIXCLKS_CNTL);
        pixclks_cntl &= ~(      PIXCLKS_CNTL__PIXCLK_GV_ALWAYS_ONb | 
                                PIXCLKS_CNTL__PIXCLK_BLEND_ALWAYS_ONb|
                                PIXCLKS_CNTL__PIXCLK_DIG_TMDS_ALWAYS_ONb |
                                PIXCLKS_CNTL__PIXCLK_LVDS_ALWAYS_ONb|
                                PIXCLKS_CNTL__PIXCLK_TMDS_ALWAYS_ONb|
                                PIXCLKS_CNTL__PIX2CLK_ALWAYS_ONb|
                                PIXCLKS_CNTL__PIX2CLK_DAC_ALWAYS_ONb);
                                                
        OUTPLL( pllPIXCLKS_CNTL, pixclks_cntl);

        /* Switch off LVDS interface */
        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) &
               ~(LVDS_BLON | LVDS_EN | LVDS_ON | LVDS_DIGON));

        /* Enable System power management */
        pll_pwrmgt_cntl = INPLL( pllPLL_PWRMGT_CNTL);
        
        pll_pwrmgt_cntl |=      PLL_PWRMGT_CNTL__SPLL_TURNOFF |
                                PLL_PWRMGT_CNTL__MPLL_TURNOFF|
                                PLL_PWRMGT_CNTL__PPLL_TURNOFF|
                                PLL_PWRMGT_CNTL__P2PLL_TURNOFF|
                                PLL_PWRMGT_CNTL__TVPLL_TURNOFF;
                                                
        OUTPLL( pllPLL_PWRMGT_CNTL, pll_pwrmgt_cntl);
        
        clk_pwrmgt_cntl  = INPLL( pllCLK_PWRMGT_CNTL);
        
        clk_pwrmgt_cntl &= ~(   CLK_PWRMGT_CNTL__MPLL_PWRMGT_OFF|
                                CLK_PWRMGT_CNTL__SPLL_PWRMGT_OFF|
                                CLK_PWRMGT_CNTL__PPLL_PWRMGT_OFF|
                                CLK_PWRMGT_CNTL__P2PLL_PWRMGT_OFF|
                                CLK_PWRMGT_CNTL__MCLK_TURNOFF|
                                CLK_PWRMGT_CNTL__SCLK_TURNOFF|
                                CLK_PWRMGT_CNTL__PCLK_TURNOFF|
                                CLK_PWRMGT_CNTL__P2CLK_TURNOFF|
                                CLK_PWRMGT_CNTL__TVPLL_PWRMGT_OFF|
                                CLK_PWRMGT_CNTL__GLOBAL_PMAN_EN|
                                CLK_PWRMGT_CNTL__ENGINE_DYNCLK_MODE|
                                CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK|
                                CLK_PWRMGT_CNTL__CG_NO1_DEBUG_MASK
                        );
                                                
        clk_pwrmgt_cntl |= CLK_PWRMGT_CNTL__GLOBAL_PMAN_EN
                | CLK_PWRMGT_CNTL__DISP_PM;
        
        OUTPLL( pllCLK_PWRMGT_CNTL, clk_pwrmgt_cntl);
        
        clk_pin_cntl = INPLL( pllCLK_PIN_CNTL);
        
        clk_pin_cntl &= ~CLK_PIN_CNTL__ACCESS_REGS_IN_SUSPEND;

        /* because both INPLL and OUTPLL take the same lock, that's why. */
        tmp = INPLL( pllMCLK_MISC) | MCLK_MISC__EN_MCLK_TRISTATE_IN_SUSPEND;
        OUTPLL( pllMCLK_MISC, tmp);

        /* BUS_CNTL1__MOBILE_PLATORM_SEL setting is northbridge chipset
         * and radeon chip dependent. Thus we only enable it on Mac for
         * now (until we get more info on how to compute the correct
         * value for various X86 bridges).
         */
#ifdef CONFIG_PPC_PMAC
        if (machine_is(powermac)) {
                /* AGP PLL control */
                if (rinfo->family <= CHIP_FAMILY_RV280) {
                        OUTREG(BUS_CNTL1, INREG(BUS_CNTL1) |  BUS_CNTL1__AGPCLK_VALID);
                        OUTREG(BUS_CNTL1,
                               (INREG(BUS_CNTL1) & ~BUS_CNTL1__MOBILE_PLATFORM_SEL_MASK)
                               | (2<<BUS_CNTL1__MOBILE_PLATFORM_SEL__SHIFT));   // 440BX
                } else {
                        OUTREG(BUS_CNTL1, INREG(BUS_CNTL1));
                        OUTREG(BUS_CNTL1, (INREG(BUS_CNTL1) & ~0x4000) | 0x8000);
                }
        }
#endif

        OUTREG(CRTC_OFFSET_CNTL, (INREG(CRTC_OFFSET_CNTL)
                                  & ~CRTC_OFFSET_CNTL__CRTC_STEREO_SYNC_OUT_EN));
        
        clk_pin_cntl &= ~CLK_PIN_CNTL__CG_CLK_TO_OUTPIN;
        clk_pin_cntl |= CLK_PIN_CNTL__XTALIN_ALWAYS_ONb;        
        OUTPLL( pllCLK_PIN_CNTL, clk_pin_cntl);

        /* Solano2M */
        OUTREG(AGP_CNTL,
                (INREG(AGP_CNTL) & ~(AGP_CNTL__MAX_IDLE_CLK_MASK))
                | (0x20<<AGP_CNTL__MAX_IDLE_CLK__SHIFT));

        /* ACPI mode */
        /* because both INPLL and OUTPLL take the same lock, that's why. */
        tmp = INPLL( pllPLL_PWRMGT_CNTL) & ~PLL_PWRMGT_CNTL__PM_MODE_SEL;
        OUTPLL( pllPLL_PWRMGT_CNTL, tmp);


        disp_mis_cntl = INREG(DISP_MISC_CNTL);
        
        disp_mis_cntl &= ~(     DISP_MISC_CNTL__SOFT_RESET_GRPH_PP | 
                                DISP_MISC_CNTL__SOFT_RESET_SUBPIC_PP | 
                                DISP_MISC_CNTL__SOFT_RESET_OV0_PP |
                                DISP_MISC_CNTL__SOFT_RESET_GRPH_SCLK|
                                DISP_MISC_CNTL__SOFT_RESET_SUBPIC_SCLK|
                                DISP_MISC_CNTL__SOFT_RESET_OV0_SCLK|

                                DISP_MISC_CNTL__SOFT_RESET_GRPH2_PP|
                                DISP_MISC_CNTL__SOFT_RESET_GRPH2_SCLK|
                                DISP_MISC_CNTL__SOFT_RESET_LVDS|
                                DISP_MISC_CNTL__SOFT_RESET_TMDS|
                                DISP_MISC_CNTL__SOFT_RESET_DIG_TMDS|
                                DISP_MISC_CNTL__SOFT_RESET_TV);
        
        OUTREG(DISP_MISC_CNTL, disp_mis_cntl);
                                                
        disp_pwr_man = INREG(DISP_PWR_MAN);
        
        disp_pwr_man &= ~(      DISP_PWR_MAN__DISP_PWR_MAN_D3_CRTC_EN   | 
                                DISP_PWR_MAN__DISP2_PWR_MAN_D3_CRTC2_EN |
                                DISP_PWR_MAN__DISP_PWR_MAN_DPMS_MASK|
                                DISP_PWR_MAN__DISP_D3_RST|
                                DISP_PWR_MAN__DISP_D3_REG_RST
                                );
        
        disp_pwr_man |= DISP_PWR_MAN__DISP_D3_GRPH_RST|
                                        DISP_PWR_MAN__DISP_D3_SUBPIC_RST|
                                        DISP_PWR_MAN__DISP_D3_OV0_RST|
                                        DISP_PWR_MAN__DISP_D1D2_GRPH_RST|
                                        DISP_PWR_MAN__DISP_D1D2_SUBPIC_RST|
                                        DISP_PWR_MAN__DISP_D1D2_OV0_RST|
                                        DISP_PWR_MAN__DIG_TMDS_ENABLE_RST|
                                        DISP_PWR_MAN__TV_ENABLE_RST| 
//                                      DISP_PWR_MAN__AUTO_PWRUP_EN|
                                        0;
        
        OUTREG(DISP_PWR_MAN, disp_pwr_man);                                     
                                                        
        clk_pwrmgt_cntl = INPLL( pllCLK_PWRMGT_CNTL);
        pll_pwrmgt_cntl = INPLL( pllPLL_PWRMGT_CNTL) ;
        clk_pin_cntl    = INPLL( pllCLK_PIN_CNTL);
        disp_pwr_man    = INREG(DISP_PWR_MAN);
                
        
        /* D2 */
        clk_pwrmgt_cntl |= CLK_PWRMGT_CNTL__DISP_PM;
        pll_pwrmgt_cntl |= PLL_PWRMGT_CNTL__MOBILE_SU | PLL_PWRMGT_CNTL__SU_SCLK_USE_BCLK;
        clk_pin_cntl    |= CLK_PIN_CNTL__XTALIN_ALWAYS_ONb;
        disp_pwr_man    &= ~(DISP_PWR_MAN__DISP_PWR_MAN_D3_CRTC_EN_MASK
                             | DISP_PWR_MAN__DISP2_PWR_MAN_D3_CRTC2_EN_MASK);

        OUTPLL( pllCLK_PWRMGT_CNTL, clk_pwrmgt_cntl);
        OUTPLL( pllPLL_PWRMGT_CNTL, pll_pwrmgt_cntl);
        OUTPLL( pllCLK_PIN_CNTL, clk_pin_cntl);
        OUTREG(DISP_PWR_MAN, disp_pwr_man);

        /* disable display request & disable display */
        OUTREG( CRTC_GEN_CNTL, (INREG( CRTC_GEN_CNTL) & ~CRTC_GEN_CNTL__CRTC_EN)
                | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B);
        OUTREG( CRTC2_GEN_CNTL, (INREG( CRTC2_GEN_CNTL) & ~CRTC2_GEN_CNTL__CRTC2_EN)
                | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B);

        mdelay(17);                                

}

static void radeon_pm_yclk_mclk_sync(struct radeonfb_info *rinfo)
{
        u32 mc_chp_io_cntl_a1, mc_chp_io_cntl_b1;

        mc_chp_io_cntl_a1 = INMC( rinfo, ixMC_CHP_IO_CNTL_A1)
                & ~MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA_MASK;
        mc_chp_io_cntl_b1 = INMC( rinfo, ixMC_CHP_IO_CNTL_B1)
                & ~MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB_MASK;

        OUTMC( rinfo, ixMC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1
               | (1<<MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA__SHIFT));
        OUTMC( rinfo, ixMC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1
               | (1<<MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB__SHIFT));

        OUTMC( rinfo, ixMC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1);
        OUTMC( rinfo, ixMC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1);

        mdelay( 1);
}

static void radeon_pm_yclk_mclk_sync_m10(struct radeonfb_info *rinfo)
{
        u32 mc_chp_io_cntl_a1, mc_chp_io_cntl_b1;

        mc_chp_io_cntl_a1 = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1)
                & ~MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA_MASK;
        mc_chp_io_cntl_b1 = INMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1)
                & ~MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB_MASK;

        OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_A1,
               mc_chp_io_cntl_a1 | (1<<MC_CHP_IO_CNTL_A1__MEM_SYNC_ENA__SHIFT));
        OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_B1,
               mc_chp_io_cntl_b1 | (1<<MC_CHP_IO_CNTL_B1__MEM_SYNC_ENB__SHIFT));

        OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_A1, mc_chp_io_cntl_a1);
        OUTMC( rinfo, ixR300_MC_CHP_IO_CNTL_B1, mc_chp_io_cntl_b1);

        mdelay( 1);
}

static void radeon_pm_program_mode_reg(struct radeonfb_info *rinfo, u16 value,
                                       u8 delay_required)
{  
        u32 mem_sdram_mode;

        mem_sdram_mode  = INREG( MEM_SDRAM_MODE_REG);

        mem_sdram_mode &= ~MEM_SDRAM_MODE_REG__MEM_MODE_REG_MASK;
        mem_sdram_mode |= (value<<MEM_SDRAM_MODE_REG__MEM_MODE_REG__SHIFT)
                | MEM_SDRAM_MODE_REG__MEM_CFG_TYPE;
        OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
        if (delay_required >= 2)
                mdelay(1);

        mem_sdram_mode |=  MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET;
        OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
        if (delay_required >= 2)
                mdelay(1);

        mem_sdram_mode &= ~MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET;
        OUTREG( MEM_SDRAM_MODE_REG, mem_sdram_mode);
        if (delay_required >= 2)
                mdelay(1);

        if (delay_required) {
                do {
                        if (delay_required >= 2)
                                mdelay(1);
                } while ((INREG(MC_STATUS)
                          & (MC_STATUS__MEM_PWRUP_COMPL_A |
                             MC_STATUS__MEM_PWRUP_COMPL_B)) == 0);
        }
}

static void radeon_pm_m10_program_mode_wait(struct radeonfb_info *rinfo)
{
        int cnt;

        for (cnt = 0; cnt < 100; ++cnt) {
                mdelay(1);
                if (INREG(MC_STATUS) & (MC_STATUS__MEM_PWRUP_COMPL_A
                                        | MC_STATUS__MEM_PWRUP_COMPL_B))
                        break;
        }
}


static void radeon_pm_enable_dll(struct radeonfb_info *rinfo)
{  
#define DLL_RESET_DELAY         5
#define DLL_SLEEP_DELAY         1

        u32 cko = INPLL(pllMDLL_CKO)   | MDLL_CKO__MCKOA_SLEEP
                | MDLL_CKO__MCKOA_RESET;
        u32 cka = INPLL(pllMDLL_RDCKA) | MDLL_RDCKA__MRDCKA0_SLEEP
                | MDLL_RDCKA__MRDCKA1_SLEEP | MDLL_RDCKA__MRDCKA0_RESET
                | MDLL_RDCKA__MRDCKA1_RESET;
        u32 ckb = INPLL(pllMDLL_RDCKB) | MDLL_RDCKB__MRDCKB0_SLEEP
                | MDLL_RDCKB__MRDCKB1_SLEEP | MDLL_RDCKB__MRDCKB0_RESET
                | MDLL_RDCKB__MRDCKB1_RESET;

        /* Setting up the DLL range for write */
        OUTPLL(pllMDLL_CKO,     cko);
        OUTPLL(pllMDLL_RDCKA,   cka);
        OUTPLL(pllMDLL_RDCKB,   ckb);

        mdelay(DLL_RESET_DELAY*2);

        cko &= ~(MDLL_CKO__MCKOA_SLEEP | MDLL_CKO__MCKOB_SLEEP);
        OUTPLL(pllMDLL_CKO, cko);
        mdelay(DLL_SLEEP_DELAY);
        cko &= ~(MDLL_CKO__MCKOA_RESET | MDLL_CKO__MCKOB_RESET);
        OUTPLL(pllMDLL_CKO, cko);
        mdelay(DLL_RESET_DELAY);

        cka &= ~(MDLL_RDCKA__MRDCKA0_SLEEP | MDLL_RDCKA__MRDCKA1_SLEEP);
        OUTPLL(pllMDLL_RDCKA, cka);
        mdelay(DLL_SLEEP_DELAY);
        cka &= ~(MDLL_RDCKA__MRDCKA0_RESET | MDLL_RDCKA__MRDCKA1_RESET);
        OUTPLL(pllMDLL_RDCKA, cka);
        mdelay(DLL_RESET_DELAY);

        ckb &= ~(MDLL_RDCKB__MRDCKB0_SLEEP | MDLL_RDCKB__MRDCKB1_SLEEP);
        OUTPLL(pllMDLL_RDCKB, ckb);
        mdelay(DLL_SLEEP_DELAY);
        ckb &= ~(MDLL_RDCKB__MRDCKB0_RESET | MDLL_RDCKB__MRDCKB1_RESET);
        OUTPLL(pllMDLL_RDCKB, ckb);
        mdelay(DLL_RESET_DELAY);


#undef DLL_RESET_DELAY
#undef DLL_SLEEP_DELAY
}

static void radeon_pm_enable_dll_m10(struct radeonfb_info *rinfo)
{
        u32 dll_value;
        u32 dll_sleep_mask = 0;
        u32 dll_reset_mask = 0;
        u32 mc;

#define DLL_RESET_DELAY         5
#define DLL_SLEEP_DELAY         1

        OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);
        mc = INREG(MC_CNTL);
        /* Check which channels are enabled */
        switch (mc & 0x3) {
        case 1:
                if (mc & 0x4)
                        break;
                fallthrough;
        case 2:
                dll_sleep_mask |= MDLL_R300_RDCK__MRDCKB_SLEEP;
                dll_reset_mask |= MDLL_R300_RDCK__MRDCKB_RESET;
                fallthrough;
        case 0:
                dll_sleep_mask |= MDLL_R300_RDCK__MRDCKA_SLEEP;
                dll_reset_mask |= MDLL_R300_RDCK__MRDCKA_RESET;
        }
        switch (mc & 0x3) {
        case 1:
                if (!(mc & 0x4))
                        break;
                fallthrough;
        case 2:
                dll_sleep_mask |= MDLL_R300_RDCK__MRDCKD_SLEEP;
                dll_reset_mask |= MDLL_R300_RDCK__MRDCKD_RESET;
                dll_sleep_mask |= MDLL_R300_RDCK__MRDCKC_SLEEP;
                dll_reset_mask |= MDLL_R300_RDCK__MRDCKC_RESET;
        }

        dll_value = INPLL(pllMDLL_RDCKA);

        /* Power Up */
        dll_value &= ~(dll_sleep_mask);
        OUTPLL(pllMDLL_RDCKA, dll_value);
        mdelay( DLL_SLEEP_DELAY);               

        dll_value &= ~(dll_reset_mask);
        OUTPLL(pllMDLL_RDCKA, dll_value);
        mdelay( DLL_RESET_DELAY);               

#undef DLL_RESET_DELAY 
#undef DLL_SLEEP_DELAY
}


static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo)
{
        u32 crtcGenCntl, crtcGenCntl2, memRefreshCntl, crtc_more_cntl,
                fp_gen_cntl, fp2_gen_cntl;
 
        crtcGenCntl  = INREG( CRTC_GEN_CNTL);
        crtcGenCntl2 = INREG( CRTC2_GEN_CNTL);

        crtc_more_cntl  = INREG( CRTC_MORE_CNTL);
        fp_gen_cntl     = INREG( FP_GEN_CNTL);
        fp2_gen_cntl    = INREG( FP2_GEN_CNTL);
 

        OUTREG( CRTC_MORE_CNTL, 0);
        OUTREG( FP_GEN_CNTL, 0);
        OUTREG( FP2_GEN_CNTL,0);
 
        OUTREG( CRTC_GEN_CNTL,  (crtcGenCntl | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B) );
        OUTREG( CRTC2_GEN_CNTL, (crtcGenCntl2 | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B) );
  
        /* This is the code for the Aluminium PowerBooks M10 / iBooks M11 */
        if (rinfo->family == CHIP_FAMILY_RV350) {
                u32 sdram_mode_reg = rinfo->save_regs[35];
                static const u32 default_mrtable[] =
                        { 0x21320032,
                          0x21321000, 0xa1321000, 0x21321000, 0xffffffff,
                          0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
                          0x21321002, 0xa1321002, 0x21321002, 0xffffffff,
                          0x21320132, 0xa1320132, 0x21320132, 0xffffffff,
                          0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
                          0x31320032 };

                const u32 *mrtable = default_mrtable;
                int i, mrtable_size = ARRAY_SIZE(default_mrtable);

                mdelay(30);

                /* Disable refresh */
                memRefreshCntl  = INREG( MEM_REFRESH_CNTL)
                        & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
                OUTREG( MEM_REFRESH_CNTL, memRefreshCntl
                        | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);

                /* Configure and enable M & SPLLs */
                radeon_pm_enable_dll_m10(rinfo);
                radeon_pm_yclk_mclk_sync_m10(rinfo);

#ifdef CONFIG_PPC
                if (rinfo->of_node != NULL) {
                        int size;

                        mrtable = of_get_property(rinfo->of_node, "ATY,MRT", &size);
                        if (mrtable)
                                mrtable_size = size >> 2;
                        else
                                mrtable = default_mrtable;
                }
#endif /* CONFIG_PPC */

                /* Program the SDRAM */
                sdram_mode_reg = mrtable[0];
                OUTREG(MEM_SDRAM_MODE_REG, sdram_mode_reg);
                for (i = 0; i < mrtable_size; i++) {
                        if (mrtable[i] == 0xffffffffu)
                                radeon_pm_m10_program_mode_wait(rinfo);
                        else {
                                sdram_mode_reg &= ~(MEM_SDRAM_MODE_REG__MEM_MODE_REG_MASK
                                                    | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE
                                                    | MEM_SDRAM_MODE_REG__MEM_SDRAM_RESET);
                                sdram_mode_reg |= mrtable[i];

                                OUTREG(MEM_SDRAM_MODE_REG, sdram_mode_reg);
                                mdelay(1);
                        }
                }

                /* Restore memory refresh */
                OUTREG(MEM_REFRESH_CNTL, memRefreshCntl);
                mdelay(30);

        }
        /* Here come the desktop RV200 "QW" card */
        else if (!rinfo->is_mobility && rinfo->family == CHIP_FAMILY_RV200) {
                /* Disable refresh */
                memRefreshCntl  = INREG( MEM_REFRESH_CNTL)
                        & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
                OUTREG(MEM_REFRESH_CNTL, memRefreshCntl
                       | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);
                mdelay(30);

                /* Reset memory */
                OUTREG(MEM_SDRAM_MODE_REG,
                       INREG( MEM_SDRAM_MODE_REG) & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                radeon_pm_program_mode_reg(rinfo, 0x2002, 2);
                radeon_pm_program_mode_reg(rinfo, 0x0132, 2);
                radeon_pm_program_mode_reg(rinfo, 0x0032, 2);

                OUTREG(MEM_SDRAM_MODE_REG,
                       INREG(MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                OUTREG( MEM_REFRESH_CNTL,       memRefreshCntl);

        }
        /* The M6 */
        else if (rinfo->is_mobility && rinfo->family == CHIP_FAMILY_RV100) {
                /* Disable refresh */
                memRefreshCntl = INREG(EXT_MEM_CNTL) & ~(1 << 20);
                OUTREG( EXT_MEM_CNTL, memRefreshCntl | (1 << 20));
 
                /* Reset memory */
                OUTREG( MEM_SDRAM_MODE_REG,
                        INREG( MEM_SDRAM_MODE_REG)
                        & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                /* DLL */
                radeon_pm_enable_dll(rinfo);

                /* MLCK / YCLK sync */
                radeon_pm_yclk_mclk_sync(rinfo);

                /* Program Mode Register */
                radeon_pm_program_mode_reg(rinfo, 0x2000, 1);   
                radeon_pm_program_mode_reg(rinfo, 0x2001, 1);   
                radeon_pm_program_mode_reg(rinfo, 0x2002, 1);   
                radeon_pm_program_mode_reg(rinfo, 0x0132, 1);   
                radeon_pm_program_mode_reg(rinfo, 0x0032, 1); 

                /* Complete & re-enable refresh */
                OUTREG( MEM_SDRAM_MODE_REG,
                        INREG( MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                OUTREG(EXT_MEM_CNTL, memRefreshCntl);
        }
        /* And finally, the M7..M9 models, including M9+ (RV280) */
        else if (rinfo->is_mobility) {

                /* Disable refresh */
                memRefreshCntl  = INREG( MEM_REFRESH_CNTL)
                        & ~MEM_REFRESH_CNTL__MEM_REFRESH_DIS;
                OUTREG( MEM_REFRESH_CNTL, memRefreshCntl
                        | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);

                /* Reset memory */
                OUTREG( MEM_SDRAM_MODE_REG,
                        INREG( MEM_SDRAM_MODE_REG)
                        & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                /* DLL */
                radeon_pm_enable_dll(rinfo);

                /* MLCK / YCLK sync */
                radeon_pm_yclk_mclk_sync(rinfo);

                /* M6, M7 and M9 so far ... */
                if (rinfo->family <= CHIP_FAMILY_RV250) {
                        radeon_pm_program_mode_reg(rinfo, 0x2000, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x2001, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x2002, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x0132, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x0032, 1);
                }
                /* M9+ (iBook G4) */
                else if (rinfo->family == CHIP_FAMILY_RV280) {
                        radeon_pm_program_mode_reg(rinfo, 0x2000, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x0132, 1);
                        radeon_pm_program_mode_reg(rinfo, 0x0032, 1);
                }

                /* Complete & re-enable refresh */
                OUTREG( MEM_SDRAM_MODE_REG,
                        INREG( MEM_SDRAM_MODE_REG) | MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);

                OUTREG( MEM_REFRESH_CNTL,       memRefreshCntl);
        }

        OUTREG( CRTC_GEN_CNTL,          crtcGenCntl);
        OUTREG( CRTC2_GEN_CNTL,         crtcGenCntl2);
        OUTREG( FP_GEN_CNTL,            fp_gen_cntl);
        OUTREG( FP2_GEN_CNTL,           fp2_gen_cntl);

        OUTREG( CRTC_MORE_CNTL,         crtc_more_cntl);

        mdelay( 15);
}

#if defined(CONFIG_X86) || defined(CONFIG_PPC_PMAC)
static void radeon_pm_reset_pad_ctlr_strength(struct radeonfb_info *rinfo)
{
        u32 tmp, tmp2;
        int i,j;

        /* Reset the PAD_CTLR_STRENGTH & wait for it to be stable */
        INREG(PAD_CTLR_STRENGTH);
        OUTREG(PAD_CTLR_STRENGTH, INREG(PAD_CTLR_STRENGTH) & ~PAD_MANUAL_OVERRIDE);
        tmp = INREG(PAD_CTLR_STRENGTH);
        for (i = j = 0; i < 65; ++i) {
                mdelay(1);
                tmp2 = INREG(PAD_CTLR_STRENGTH);
                if (tmp != tmp2) {
                        tmp = tmp2;
                        i = 0;
                        j++;
                        if (j > 10) {
                                printk(KERN_WARNING "radeon: PAD_CTLR_STRENGTH doesn't "
                                       "stabilize !\n");
                                break;
                        }
                }
        }
}

static void radeon_pm_all_ppls_off(struct radeonfb_info *rinfo)
{
        u32 tmp;

        tmp = INPLL(pllPPLL_CNTL);
        OUTPLL(pllPPLL_CNTL, tmp | 0x3);
        tmp = INPLL(pllP2PLL_CNTL);
        OUTPLL(pllP2PLL_CNTL, tmp | 0x3);
        tmp = INPLL(pllSPLL_CNTL);
        OUTPLL(pllSPLL_CNTL, tmp | 0x3);
        tmp = INPLL(pllMPLL_CNTL);
        OUTPLL(pllMPLL_CNTL, tmp | 0x3);
}

static void radeon_pm_start_mclk_sclk(struct radeonfb_info *rinfo)
{
        u32 tmp;

        /* Switch SPLL to PCI source */
        tmp = INPLL(pllSCLK_CNTL);
        OUTPLL(pllSCLK_CNTL, tmp & ~SCLK_CNTL__SCLK_SRC_SEL_MASK);

        /* Reconfigure SPLL charge pump, VCO gain, duty cycle */
        tmp = INPLL(pllSPLL_CNTL);
        OUTREG8(CLOCK_CNTL_INDEX, pllSPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
        radeon_pll_errata_after_data(rinfo);

        /* Set SPLL feedback divider */
        tmp = INPLL(pllM_SPLL_REF_FB_DIV);
        tmp = (tmp & 0xff00fffful) | (rinfo->save_regs[77] & 0x00ff0000ul);
        OUTPLL(pllM_SPLL_REF_FB_DIV, tmp);

        /* Power up SPLL */
        tmp = INPLL(pllSPLL_CNTL);
        OUTPLL(pllSPLL_CNTL, tmp & ~1);
        (void)INPLL(pllSPLL_CNTL);

        mdelay(10);

        /* Release SPLL reset */
        tmp = INPLL(pllSPLL_CNTL);
        OUTPLL(pllSPLL_CNTL, tmp & ~0x2);
        (void)INPLL(pllSPLL_CNTL);

        mdelay(10);

        /* Select SCLK source  */
        tmp = INPLL(pllSCLK_CNTL);
        tmp &= ~SCLK_CNTL__SCLK_SRC_SEL_MASK;
        tmp |= rinfo->save_regs[3] & SCLK_CNTL__SCLK_SRC_SEL_MASK;
        OUTPLL(pllSCLK_CNTL, tmp);
        (void)INPLL(pllSCLK_CNTL);

        mdelay(10);

        /* Reconfigure MPLL charge pump, VCO gain, duty cycle */
        tmp = INPLL(pllMPLL_CNTL);
        OUTREG8(CLOCK_CNTL_INDEX, pllMPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
        radeon_pll_errata_after_data(rinfo);

        /* Set MPLL feedback divider */
        tmp = INPLL(pllM_SPLL_REF_FB_DIV);
        tmp = (tmp & 0xffff00fful) | (rinfo->save_regs[77] & 0x0000ff00ul);

        OUTPLL(pllM_SPLL_REF_FB_DIV, tmp);
        /* Power up MPLL */
        tmp = INPLL(pllMPLL_CNTL);
        OUTPLL(pllMPLL_CNTL, tmp & ~0x2);
        (void)INPLL(pllMPLL_CNTL);

        mdelay(10);

        /* Un-reset MPLL */
        tmp = INPLL(pllMPLL_CNTL);
        OUTPLL(pllMPLL_CNTL, tmp & ~0x1);
        (void)INPLL(pllMPLL_CNTL);

        mdelay(10);

        /* Select source for MCLK */
        tmp = INPLL(pllMCLK_CNTL);
        tmp |= rinfo->save_regs[2] & 0xffff;
        OUTPLL(pllMCLK_CNTL, tmp);
        (void)INPLL(pllMCLK_CNTL);

        mdelay(10);
}

static void radeon_pm_m10_disable_spread_spectrum(struct radeonfb_info *rinfo)
{
        u32 r2ec;

        /* GACK ! I though we didn't have a DDA on Radeon's anymore
         * here we rewrite with the same value, ... I suppose we clear
         * some bits that are already clear ? Or maybe this 0x2ec
         * register is something new ?
         */
        mdelay(20);
        r2ec = INREG(VGA_DDA_ON_OFF);
        OUTREG(VGA_DDA_ON_OFF, r2ec);
        mdelay(1);

        /* Spread spectrum PLLL off */
        OUTPLL(pllSSPLL_CNTL, 0xbf03);

        /* Spread spectrum disabled */
        OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90] & ~3);

        /* The trace shows read & rewrite of LVDS_PLL_CNTL here with same
         * value, not sure what for...
         */

        r2ec |= 0x3f0;
        OUTREG(VGA_DDA_ON_OFF, r2ec);
        mdelay(1);
}

static void radeon_pm_m10_enable_lvds_spread_spectrum(struct radeonfb_info *rinfo)
{
        u32 r2ec, tmp;

        /* GACK (bis) ! I though we didn't have a DDA on Radeon's anymore
         * here we rewrite with the same value, ... I suppose we clear/set
         * some bits that are already clear/set ?
         */
        r2ec = INREG(VGA_DDA_ON_OFF);
        OUTREG(VGA_DDA_ON_OFF, r2ec);
        mdelay(1);

        /* Enable spread spectrum */
        OUTPLL(pllSSPLL_CNTL, rinfo->save_regs[43] | 3);
        mdelay(3);

        OUTPLL(pllSSPLL_REF_DIV, rinfo->save_regs[44]);
        OUTPLL(pllSSPLL_DIV_0, rinfo->save_regs[45]);
        tmp = INPLL(pllSSPLL_CNTL);
        OUTPLL(pllSSPLL_CNTL, tmp & ~0x2);
        mdelay(6);
        tmp = INPLL(pllSSPLL_CNTL);
        OUTPLL(pllSSPLL_CNTL, tmp & ~0x1);
        mdelay(5);

        OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90]);

        r2ec |= 8;
        OUTREG(VGA_DDA_ON_OFF, r2ec);
        mdelay(20);

        /* Enable LVDS interface */
        tmp = INREG(LVDS_GEN_CNTL);
        OUTREG(LVDS_GEN_CNTL, tmp | LVDS_EN);

        /* Enable LVDS_PLL */
        tmp = INREG(LVDS_PLL_CNTL);
        tmp &= ~0x30000;
        tmp |= 0x10000;
        OUTREG(LVDS_PLL_CNTL, tmp);

        OUTPLL(pllSCLK_MORE_CNTL, rinfo->save_regs[34]);
        OUTPLL(pllSS_TST_CNTL, rinfo->save_regs[91]);

        /* The trace reads that one here, waiting for something to settle down ? */
        INREG(RBBM_STATUS);

        /* Ugh ? SS_TST_DEC is supposed to be a read register in the
         * R300 register spec at least...
         */
        tmp = INPLL(pllSS_TST_CNTL);
        tmp |= 0x00400000;
        OUTPLL(pllSS_TST_CNTL, tmp);
}

static void radeon_pm_restore_pixel_pll(struct radeonfb_info *rinfo)
{
        u32 tmp;

        OUTREG8(CLOCK_CNTL_INDEX, pllHTOTAL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA, 0);
        radeon_pll_errata_after_data(rinfo);

        tmp = INPLL(pllVCLK_ECP_CNTL);
        OUTPLL(pllVCLK_ECP_CNTL, tmp | 0x80);
        mdelay(5);

        tmp = INPLL(pllPPLL_REF_DIV);
        tmp = (tmp & ~PPLL_REF_DIV_MASK) | rinfo->pll.ref_div;
        OUTPLL(pllPPLL_REF_DIV, tmp);
        INPLL(pllPPLL_REF_DIV);

        /* Reconfigure SPLL charge pump, VCO gain, duty cycle,
         * probably useless since we already did it ...
         */
        tmp = INPLL(pllPPLL_CNTL);
        OUTREG8(CLOCK_CNTL_INDEX, pllSPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
        radeon_pll_errata_after_data(rinfo);

        /* Restore our "reference" PPLL divider set by firmware
         * according to proper spread spectrum calculations
         */
        OUTPLL(pllPPLL_DIV_0, rinfo->save_regs[92]);

        tmp = INPLL(pllPPLL_CNTL);
        OUTPLL(pllPPLL_CNTL, tmp & ~0x2);
        mdelay(5);

        tmp = INPLL(pllPPLL_CNTL);
        OUTPLL(pllPPLL_CNTL, tmp & ~0x1);
        mdelay(5);

        tmp = INPLL(pllVCLK_ECP_CNTL);
        OUTPLL(pllVCLK_ECP_CNTL, tmp | 3);
        mdelay(5);

        tmp = INPLL(pllVCLK_ECP_CNTL);
        OUTPLL(pllVCLK_ECP_CNTL, tmp | 3);
        mdelay(5);

        /* Switch pixel clock to firmware default div 0 */
        OUTREG8(CLOCK_CNTL_INDEX+1, 0);
        radeon_pll_errata_after_index(rinfo);
        radeon_pll_errata_after_data(rinfo);
}

static void radeon_pm_m10_reconfigure_mc(struct radeonfb_info *rinfo)
{
        OUTREG(MC_CNTL, rinfo->save_regs[46]);
        OUTREG(MC_INIT_GFX_LAT_TIMER, rinfo->save_regs[47]);
        OUTREG(MC_INIT_MISC_LAT_TIMER, rinfo->save_regs[48]);
        OUTREG(MEM_SDRAM_MODE_REG,
               rinfo->save_regs[35] & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
        OUTREG(MC_TIMING_CNTL, rinfo->save_regs[49]);
        OUTREG(MEM_REFRESH_CNTL, rinfo->save_regs[42]);
        OUTREG(MC_READ_CNTL_AB, rinfo->save_regs[50]);
        OUTREG(MC_CHIP_IO_OE_CNTL_AB, rinfo->save_regs[52]);
        OUTREG(MC_IOPAD_CNTL, rinfo->save_regs[51]);
        OUTREG(MC_DEBUG, rinfo->save_regs[53]);

        OUTMC(rinfo, ixR300_MC_MC_INIT_WR_LAT_TIMER, rinfo->save_regs[58]);
        OUTMC(rinfo, ixR300_MC_IMP_CNTL, rinfo->save_regs[59]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_C0, rinfo->save_regs[60]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_C1, rinfo->save_regs[61]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_D0, rinfo->save_regs[62]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_D1, rinfo->save_regs[63]);
        OUTMC(rinfo, ixR300_MC_BIST_CNTL_3, rinfo->save_regs[64]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_A0, rinfo->save_regs[65]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_A1, rinfo->save_regs[66]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_B0, rinfo->save_regs[67]);
        OUTMC(rinfo, ixR300_MC_CHP_IO_CNTL_B1, rinfo->save_regs[68]);
        OUTMC(rinfo, ixR300_MC_DEBUG_CNTL, rinfo->save_regs[69]);
        OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);
        OUTMC(rinfo, ixR300_MC_IMP_CNTL_0, rinfo->save_regs[71]);
        OUTMC(rinfo, ixR300_MC_ELPIDA_CNTL, rinfo->save_regs[72]);
        OUTMC(rinfo, ixR300_MC_READ_CNTL_CD, rinfo->save_regs[96]);
        OUTREG(MC_IND_INDEX, 0);
}

static void radeon_reinitialize_M10(struct radeonfb_info *rinfo)
{
        u32 tmp, i;

        /* Restore a bunch of registers first */
        OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
        OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
        OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
        OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
        OUTREG(OV0_BASE_ADDR, rinfo->save_regs[80]);
        OUTREG(CNFG_MEMSIZE, rinfo->video_ram);
        OUTREG(BUS_CNTL, rinfo->save_regs[36]);
        OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
        OUTREG(MPP_TB_CONFIG, rinfo->save_regs[37]);
        OUTREG(FCP_CNTL, rinfo->save_regs[38]);
        OUTREG(RBBM_CNTL, rinfo->save_regs[39]);
        OUTREG(DAC_CNTL, rinfo->save_regs[40]);
        OUTREG(DAC_MACRO_CNTL, (INREG(DAC_MACRO_CNTL) & ~0x6) | 8);
        OUTREG(DAC_MACRO_CNTL, (INREG(DAC_MACRO_CNTL) & ~0x6) | 8);

        /* Hrm... */
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | DAC2_EXPAND_MODE);

        /* Reset the PAD CTLR */
        radeon_pm_reset_pad_ctlr_strength(rinfo);

        /* Some PLLs are Read & written identically in the trace here...
         * I suppose it's actually to switch them all off & reset,
         * let's assume off is what we want. I'm just doing that for all major PLLs now.
         */
        radeon_pm_all_ppls_off(rinfo);

        /* Clear tiling, reset swappers */
        INREG(SURFACE_CNTL);
        OUTREG(SURFACE_CNTL, 0);

        /* Some black magic with TV_DAC_CNTL, we should restore those from backups
         * rather than hard coding...
         */
        tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_BGADJ_MASK;
        tmp |= 8 << TV_DAC_CNTL_BGADJ__SHIFT;
        OUTREG(TV_DAC_CNTL, tmp);

        tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_DACADJ_MASK;
        tmp |= 7 << TV_DAC_CNTL_DACADJ__SHIFT;
        OUTREG(TV_DAC_CNTL, tmp);

        /* More registers restored */
        OUTREG(AGP_CNTL, rinfo->save_regs[16]);
        OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]);
        OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);

        /* Hrmmm ... What is that ? */
        tmp = rinfo->save_regs[1]
                & ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK |
                    CLK_PWRMGT_CNTL__MC_BUSY);
        OUTPLL(pllCLK_PWRMGT_CNTL, tmp);

        OUTREG(PAD_CTLR_MISC, rinfo->save_regs[56]);
        OUTREG(FW_CNTL, rinfo->save_regs[57]);
        OUTREG(HDP_DEBUG, rinfo->save_regs[96]);
        OUTREG(PAMAC0_DLY_CNTL, rinfo->save_regs[54]);
        OUTREG(PAMAC1_DLY_CNTL, rinfo->save_regs[55]);
        OUTREG(PAMAC2_DLY_CNTL, rinfo->save_regs[79]);

        /* Restore Memory Controller configuration */
        radeon_pm_m10_reconfigure_mc(rinfo);

        /* Make sure CRTC's dont touch memory */
        OUTREG(CRTC_GEN_CNTL, INREG(CRTC_GEN_CNTL)
               | CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B);
        OUTREG(CRTC2_GEN_CNTL, INREG(CRTC2_GEN_CNTL)
               | CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B);
        mdelay(30);

        /* Disable SDRAM refresh */
        OUTREG(MEM_REFRESH_CNTL, INREG(MEM_REFRESH_CNTL)
               | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);

        /* Restore XTALIN routing (CLK_PIN_CNTL) */
        OUTPLL(pllCLK_PIN_CNTL, rinfo->save_regs[4]);

        /* Switch MCLK, YCLK and SCLK PLLs to PCI source & force them ON */
        tmp = rinfo->save_regs[2] & 0xff000000;
        tmp |=  MCLK_CNTL__FORCE_MCLKA |
                MCLK_CNTL__FORCE_MCLKB |
                MCLK_CNTL__FORCE_YCLKA |
                MCLK_CNTL__FORCE_YCLKB |
                MCLK_CNTL__FORCE_MC;
        OUTPLL(pllMCLK_CNTL, tmp);

        /* Force all clocks on in SCLK */
        tmp = INPLL(pllSCLK_CNTL);
        tmp |=  SCLK_CNTL__FORCE_DISP2|
                SCLK_CNTL__FORCE_CP|
                SCLK_CNTL__FORCE_HDP|
                SCLK_CNTL__FORCE_DISP1|
                SCLK_CNTL__FORCE_TOP|
                SCLK_CNTL__FORCE_E2|
                SCLK_CNTL__FORCE_SE|
                SCLK_CNTL__FORCE_IDCT|
                SCLK_CNTL__FORCE_VIP|
                SCLK_CNTL__FORCE_PB|
                SCLK_CNTL__FORCE_TAM|
                SCLK_CNTL__FORCE_TDM|
                SCLK_CNTL__FORCE_RB|
                SCLK_CNTL__FORCE_TV_SCLK|
                SCLK_CNTL__FORCE_SUBPIC|
                SCLK_CNTL__FORCE_OV0;
        tmp |=  SCLK_CNTL__CP_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__HDP_MAX_DYN_STOP_LAT |
                SCLK_CNTL__TV_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__E2_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__SE_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__IDCT_MAX_DYN_STOP_LAT|
                SCLK_CNTL__VIP_MAX_DYN_STOP_LAT |
                SCLK_CNTL__RE_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__PB_MAX_DYN_STOP_LAT  |
                SCLK_CNTL__TAM_MAX_DYN_STOP_LAT |
                SCLK_CNTL__TDM_MAX_DYN_STOP_LAT |
                SCLK_CNTL__RB_MAX_DYN_STOP_LAT;
        OUTPLL(pllSCLK_CNTL, tmp);

        OUTPLL(pllVCLK_ECP_CNTL, 0);
        OUTPLL(pllPIXCLKS_CNTL, 0);
        OUTPLL(pllMCLK_MISC,
               MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT |
               MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT);

        mdelay(5);

        /* Restore the M_SPLL_REF_FB_DIV, MPLL_AUX_CNTL and SPLL_AUX_CNTL values */
        OUTPLL(pllM_SPLL_REF_FB_DIV, rinfo->save_regs[77]);
        OUTPLL(pllMPLL_AUX_CNTL, rinfo->save_regs[75]);
        OUTPLL(pllSPLL_AUX_CNTL, rinfo->save_regs[76]);

        /* Now restore the major PLLs settings, keeping them off & reset though */
        OUTPLL(pllPPLL_CNTL, rinfo->save_regs[93] | 0x3);
        OUTPLL(pllP2PLL_CNTL, rinfo->save_regs[8] | 0x3);
        OUTPLL(pllMPLL_CNTL, rinfo->save_regs[73] | 0x03);
        OUTPLL(pllSPLL_CNTL, rinfo->save_regs[74] | 0x03);

        /* Restore MC DLL state and switch it off/reset too  */
        OUTMC(rinfo, ixR300_MC_DLL_CNTL, rinfo->save_regs[70]);

        /* Switch MDLL off & reset */
        OUTPLL(pllMDLL_RDCKA, rinfo->save_regs[98] | 0xff);
        mdelay(5);

        /* Setup some black magic bits in PLL_PWRMGT_CNTL. Hrm... we saved
         * 0xa1100007... and MacOS writes 0xa1000007 ..
         */
        OUTPLL(pllPLL_PWRMGT_CNTL, rinfo->save_regs[0]);

        /* Restore more stuffs */
        OUTPLL(pllHTOTAL_CNTL, 0);
        OUTPLL(pllHTOTAL2_CNTL, 0);

        /* More PLL initial configuration */
        tmp = INPLL(pllSCLK_CNTL2); /* What for ? */
        OUTPLL(pllSCLK_CNTL2, tmp);

        tmp = INPLL(pllSCLK_MORE_CNTL);
        tmp |=  SCLK_MORE_CNTL__FORCE_DISPREGS |        /* a guess */
                SCLK_MORE_CNTL__FORCE_MC_GUI |
                SCLK_MORE_CNTL__FORCE_MC_HOST;
        OUTPLL(pllSCLK_MORE_CNTL, tmp);

        /* Now we actually start MCLK and SCLK */
        radeon_pm_start_mclk_sclk(rinfo);

        /* Full reset sdrams, this also re-inits the MDLL */
        radeon_pm_full_reset_sdram(rinfo);

        /* Fill palettes */
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x20);
        for (i=0; i<256; i++)
                OUTREG(PALETTE_30_DATA, 0x15555555);
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~20);
        udelay(20);
        for (i=0; i<256; i++)
                OUTREG(PALETTE_30_DATA, 0x15555555);

        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~0x20);
        mdelay(3);

        /* Restore TMDS */
        OUTREG(FP_GEN_CNTL, rinfo->save_regs[82]);
        OUTREG(FP2_GEN_CNTL, rinfo->save_regs[83]);

        /* Set LVDS registers but keep interface & pll down */
        OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11] &
               ~(LVDS_EN | LVDS_ON | LVDS_DIGON | LVDS_BLON | LVDS_BL_MOD_EN));
        OUTREG(LVDS_PLL_CNTL, (rinfo->save_regs[12] & ~0xf0000) | 0x20000);

        OUTREG(DISP_OUTPUT_CNTL, rinfo->save_regs[86]);

        /* Restore GPIOPAD state */
        OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
        OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
        OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);

        /* write some stuff to the framebuffer... */
        for (i = 0; i < 0x8000; ++i)
                writeb(0, rinfo->fb_base + i);

        mdelay(40);
        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_DIGON | LVDS_ON);
        mdelay(40);

        /* Restore a few more things */
        OUTREG(GRPH_BUFFER_CNTL, rinfo->save_regs[94]);
        OUTREG(GRPH2_BUFFER_CNTL, rinfo->save_regs[95]);

        /* Take care of spread spectrum & PPLLs now */
        radeon_pm_m10_disable_spread_spectrum(rinfo);
        radeon_pm_restore_pixel_pll(rinfo);

        /* GRRRR... I can't figure out the proper LVDS power sequence, and the
         * code I have for blank/unblank doesn't quite work on some laptop models
         * it seems ... Hrm. What I have here works most of the time ...
         */
        radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
}
#endif

#ifdef CONFIG_PPC
#ifdef CONFIG_PPC_PMAC
static void radeon_pm_m9p_reconfigure_mc(struct radeonfb_info *rinfo)
{
        OUTREG(MC_CNTL, rinfo->save_regs[46]);
        OUTREG(MC_INIT_GFX_LAT_TIMER, rinfo->save_regs[47]);
        OUTREG(MC_INIT_MISC_LAT_TIMER, rinfo->save_regs[48]);
        OUTREG(MEM_SDRAM_MODE_REG,
               rinfo->save_regs[35] & ~MEM_SDRAM_MODE_REG__MC_INIT_COMPLETE);
        OUTREG(MC_TIMING_CNTL, rinfo->save_regs[49]);
        OUTREG(MC_READ_CNTL_AB, rinfo->save_regs[50]);
        OUTREG(MEM_REFRESH_CNTL, rinfo->save_regs[42]);
        OUTREG(MC_IOPAD_CNTL, rinfo->save_regs[51]);
        OUTREG(MC_DEBUG, rinfo->save_regs[53]);
        OUTREG(MC_CHIP_IO_OE_CNTL_AB, rinfo->save_regs[52]);

        OUTMC(rinfo, ixMC_IMP_CNTL, rinfo->save_regs[59] /*0x00f460d6*/);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_A0, rinfo->save_regs[65] /*0xfecfa666*/);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, rinfo->save_regs[66] /*0x141555ff*/);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_B0, rinfo->save_regs[67] /*0xfecfa666*/);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, rinfo->save_regs[68] /*0x141555ff*/);
        OUTMC(rinfo, ixMC_IMP_CNTL_0, rinfo->save_regs[71] /*0x00009249*/);
        OUTREG(MC_IND_INDEX, 0);
        OUTREG(CNFG_MEMSIZE, rinfo->video_ram);

        mdelay(20);
}

static void radeon_reinitialize_M9P(struct radeonfb_info *rinfo)
{
        u32 tmp, i;

        /* Restore a bunch of registers first */
        OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
        OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
        OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
        OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
        OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
        OUTREG(OV0_BASE_ADDR, rinfo->save_regs[80]);
        OUTREG(BUS_CNTL, rinfo->save_regs[36]);
        OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
        OUTREG(MPP_TB_CONFIG, rinfo->save_regs[37]);
        OUTREG(FCP_CNTL, rinfo->save_regs[38]);
        OUTREG(RBBM_CNTL, rinfo->save_regs[39]);

        OUTREG(DAC_CNTL, rinfo->save_regs[40]);
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | DAC2_EXPAND_MODE);

        /* Reset the PAD CTLR */
        radeon_pm_reset_pad_ctlr_strength(rinfo);

        /* Some PLLs are Read & written identically in the trace here...

         * I suppose it's actually to switch them all off & reset,
         * let's assume off is what we want. I'm just doing that for all major PLLs now.
         */
        radeon_pm_all_ppls_off(rinfo);

        /* Clear tiling, reset swappers */
        INREG(SURFACE_CNTL);
        OUTREG(SURFACE_CNTL, 0);

        /* Some black magic with TV_DAC_CNTL, we should restore those from backups
         * rather than hard coding...
         */
        tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_BGADJ_MASK;
        tmp |= 6 << TV_DAC_CNTL_BGADJ__SHIFT;
        OUTREG(TV_DAC_CNTL, tmp);

        tmp = INREG(TV_DAC_CNTL) & ~TV_DAC_CNTL_DACADJ_MASK;
        tmp |= 6 << TV_DAC_CNTL_DACADJ__SHIFT;
        OUTREG(TV_DAC_CNTL, tmp);

        OUTPLL(pllAGP_PLL_CNTL, rinfo->save_regs[78]);

        OUTREG(PAMAC0_DLY_CNTL, rinfo->save_regs[54]);
        OUTREG(PAMAC1_DLY_CNTL, rinfo->save_regs[55]);
        OUTREG(PAMAC2_DLY_CNTL, rinfo->save_regs[79]);

        OUTREG(AGP_CNTL, rinfo->save_regs[16]);
        OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]); /* MacOS sets that to 0 !!! */
        OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);

        tmp  = rinfo->save_regs[1]
                & ~(CLK_PWRMGT_CNTL__ACTIVE_HILO_LAT_MASK |
                    CLK_PWRMGT_CNTL__MC_BUSY);
        OUTPLL(pllCLK_PWRMGT_CNTL, tmp);

        OUTREG(FW_CNTL, rinfo->save_regs[57]);

        /* Disable SDRAM refresh */
        OUTREG(MEM_REFRESH_CNTL, INREG(MEM_REFRESH_CNTL)
               | MEM_REFRESH_CNTL__MEM_REFRESH_DIS);

        /* Restore XTALIN routing (CLK_PIN_CNTL) */
        OUTPLL(pllCLK_PIN_CNTL, rinfo->save_regs[4]);

        /* Force MCLK to be PCI sourced and forced ON */
        tmp = rinfo->save_regs[2] & 0xff000000;
        tmp |=  MCLK_CNTL__FORCE_MCLKA |
                MCLK_CNTL__FORCE_MCLKB |
                MCLK_CNTL__FORCE_YCLKA |
                MCLK_CNTL__FORCE_YCLKB |
                MCLK_CNTL__FORCE_MC    |
                MCLK_CNTL__FORCE_AIC;
        OUTPLL(pllMCLK_CNTL, tmp);

        /* Force SCLK to be PCI sourced with a bunch forced */
        tmp =   0 |
                SCLK_CNTL__FORCE_DISP2|
                SCLK_CNTL__FORCE_CP|
                SCLK_CNTL__FORCE_HDP|
                SCLK_CNTL__FORCE_DISP1|
                SCLK_CNTL__FORCE_TOP|
                SCLK_CNTL__FORCE_E2|
                SCLK_CNTL__FORCE_SE|
                SCLK_CNTL__FORCE_IDCT|
                SCLK_CNTL__FORCE_VIP|
                SCLK_CNTL__FORCE_RE|
                SCLK_CNTL__FORCE_PB|
                SCLK_CNTL__FORCE_TAM|
                SCLK_CNTL__FORCE_TDM|
                SCLK_CNTL__FORCE_RB;
        OUTPLL(pllSCLK_CNTL, tmp);

        /* Clear VCLK_ECP_CNTL & PIXCLKS_CNTL  */
        OUTPLL(pllVCLK_ECP_CNTL, 0);
        OUTPLL(pllPIXCLKS_CNTL, 0);

        /* Setup MCLK_MISC, non dynamic mode */
        OUTPLL(pllMCLK_MISC,
               MCLK_MISC__MC_MCLK_MAX_DYN_STOP_LAT |
               MCLK_MISC__IO_MCLK_MAX_DYN_STOP_LAT);

        mdelay(5);

        /* Set back the default clock dividers */
        OUTPLL(pllM_SPLL_REF_FB_DIV, rinfo->save_regs[77]);
        OUTPLL(pllMPLL_AUX_CNTL, rinfo->save_regs[75]);
        OUTPLL(pllSPLL_AUX_CNTL, rinfo->save_regs[76]);

        /* PPLL and P2PLL default values & off */
        OUTPLL(pllPPLL_CNTL, rinfo->save_regs[93] | 0x3);
        OUTPLL(pllP2PLL_CNTL, rinfo->save_regs[8] | 0x3);

        /* S and M PLLs are reset & off, configure them */
        OUTPLL(pllMPLL_CNTL, rinfo->save_regs[73] | 0x03);
        OUTPLL(pllSPLL_CNTL, rinfo->save_regs[74] | 0x03);

        /* Default values for MDLL ... fixme */
        OUTPLL(pllMDLL_CKO, 0x9c009c);
        OUTPLL(pllMDLL_RDCKA, 0x08830883);
        OUTPLL(pllMDLL_RDCKB, 0x08830883);
        mdelay(5);

        /* Restore PLL_PWRMGT_CNTL */ // XXXX
        tmp = rinfo->save_regs[0];
        tmp &= ~PLL_PWRMGT_CNTL_SU_SCLK_USE_BCLK;
        tmp |= PLL_PWRMGT_CNTL_SU_MCLK_USE_BCLK;
        OUTPLL(PLL_PWRMGT_CNTL,  tmp);

        /* Clear HTOTAL_CNTL & HTOTAL2_CNTL */
        OUTPLL(pllHTOTAL_CNTL, 0);
        OUTPLL(pllHTOTAL2_CNTL, 0);

        /* All outputs off */
        OUTREG(CRTC_GEN_CNTL, 0x04000000);
        OUTREG(CRTC2_GEN_CNTL, 0x04000000);
        OUTREG(FP_GEN_CNTL, 0x00004008);
        OUTREG(FP2_GEN_CNTL, 0x00000008);
        OUTREG(LVDS_GEN_CNTL, 0x08000008);

        /* Restore Memory Controller configuration */
        radeon_pm_m9p_reconfigure_mc(rinfo);

        /* Now we actually start MCLK and SCLK */
        radeon_pm_start_mclk_sclk(rinfo);

        /* Full reset sdrams, this also re-inits the MDLL */
        radeon_pm_full_reset_sdram(rinfo);

        /* Fill palettes */
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x20);
        for (i=0; i<256; i++)
                OUTREG(PALETTE_30_DATA, 0x15555555);
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~20);
        udelay(20);
        for (i=0; i<256; i++)
                OUTREG(PALETTE_30_DATA, 0x15555555);

        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) & ~0x20);
        mdelay(3);

        /* Restore TV stuff, make sure TV DAC is down */
        OUTREG(TV_MASTER_CNTL, rinfo->save_regs[88]);
        OUTREG(TV_DAC_CNTL, rinfo->save_regs[13] | 0x07000000);

        /* Restore GPIOS. MacOS does some magic here with one of the GPIO bits,
         * possibly related to the weird PLL related workarounds and to the
         * fact that CLK_PIN_CNTL is tweaked in ways I don't fully understand,
         * but we keep things the simple way here
         */
        OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
        OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
        OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);

        /* Now do things with SCLK_MORE_CNTL. Force bits are already set, copy
         * high bits from backup
         */
        tmp = INPLL(pllSCLK_MORE_CNTL) & 0x0000ffff;
        tmp |= rinfo->save_regs[34] & 0xffff0000;
        tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS;
        OUTPLL(pllSCLK_MORE_CNTL, tmp);

        tmp = INPLL(pllSCLK_MORE_CNTL) & 0x0000ffff;
        tmp |= rinfo->save_regs[34] & 0xffff0000;
        tmp |= SCLK_MORE_CNTL__FORCE_DISPREGS;
        OUTPLL(pllSCLK_MORE_CNTL, tmp);

        OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11] &
               ~(LVDS_EN | LVDS_ON | LVDS_DIGON | LVDS_BLON | LVDS_BL_MOD_EN));
        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_BLON);
        OUTREG(LVDS_PLL_CNTL, (rinfo->save_regs[12] & ~0xf0000) | 0x20000);
        mdelay(20);

        /* write some stuff to the framebuffer... */
        for (i = 0; i < 0x8000; ++i)
                writeb(0, rinfo->fb_base + i);

        OUTREG(0x2ec, 0x6332a020);
        OUTPLL(pllSSPLL_REF_DIV, rinfo->save_regs[44] /*0x3f */);
        OUTPLL(pllSSPLL_DIV_0, rinfo->save_regs[45] /*0x000081bb */);
        tmp = INPLL(pllSSPLL_CNTL);
        tmp &= ~2;
        OUTPLL(pllSSPLL_CNTL, tmp);
        mdelay(6);
        tmp &= ~1;
        OUTPLL(pllSSPLL_CNTL, tmp);
        mdelay(5);
        tmp |= 3;
        OUTPLL(pllSSPLL_CNTL, tmp);
        mdelay(5);

        OUTPLL(pllSS_INT_CNTL, rinfo->save_regs[90] & ~3);/*0x0020300c*/
        OUTREG(0x2ec, 0x6332a3f0);
        mdelay(17);

        OUTPLL(pllPPLL_REF_DIV, rinfo->pll.ref_div);
        OUTPLL(pllPPLL_DIV_0, rinfo->save_regs[92]);

        mdelay(40);
        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) | LVDS_DIGON | LVDS_ON);
        mdelay(40);

        /* Restore a few more things */
        OUTREG(GRPH_BUFFER_CNTL, rinfo->save_regs[94]);
        OUTREG(GRPH2_BUFFER_CNTL, rinfo->save_regs[95]);

        /* Restore PPLL, spread spectrum & LVDS */
        radeon_pm_m10_disable_spread_spectrum(rinfo);
        radeon_pm_restore_pixel_pll(rinfo);
        radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
}
#endif

#if 0 /* Not ready yet */
static void radeon_reinitialize_QW(struct radeonfb_info *rinfo)
{
        int i;
        u32 tmp, tmp2;
        u32 cko, cka, ckb;
        u32 cgc, cec, c2gc;

        OUTREG(MC_AGP_LOCATION, rinfo->save_regs[32]);
        OUTREG(DISPLAY_BASE_ADDR, rinfo->save_regs[31]);
        OUTREG(CRTC2_DISPLAY_BASE_ADDR, rinfo->save_regs[33]);
        OUTREG(MC_FB_LOCATION, rinfo->save_regs[30]);
        OUTREG(BUS_CNTL, rinfo->save_regs[36]);
        OUTREG(RBBM_CNTL, rinfo->save_regs[39]);

        INREG(PAD_CTLR_STRENGTH);
        OUTREG(PAD_CTLR_STRENGTH, INREG(PAD_CTLR_STRENGTH) & ~0x10000);
        for (i = 0; i < 65; ++i) {
                mdelay(1);
                INREG(PAD_CTLR_STRENGTH);
        }

        OUTREG(DISP_TEST_DEBUG_CNTL, INREG(DISP_TEST_DEBUG_CNTL) | 0x10000000);
        OUTREG(OV0_FLAG_CNTRL, INREG(OV0_FLAG_CNTRL) | 0x100);
        OUTREG(CRTC_GEN_CNTL, INREG(CRTC_GEN_CNTL));
        OUTREG(DAC_CNTL, 0xff00410a);
        OUTREG(CRTC2_GEN_CNTL, INREG(CRTC2_GEN_CNTL));
        OUTREG(DAC_CNTL2, INREG(DAC_CNTL2) | 0x4000);

        OUTREG(SURFACE_CNTL, rinfo->save_regs[29]);
        OUTREG(AGP_CNTL, rinfo->save_regs[16]);
        OUTREG(HOST_PATH_CNTL, rinfo->save_regs[41]);
        OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);

        OUTMC(rinfo, ixMC_CHP_IO_CNTL_A0, 0xf7bb4433);
        OUTREG(MC_IND_INDEX, 0);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_B0, 0xf7bb4433);
        OUTREG(MC_IND_INDEX, 0);

        OUTREG(CRTC_MORE_CNTL, INREG(CRTC_MORE_CNTL));

        tmp = INPLL(pllVCLK_ECP_CNTL);
        OUTPLL(pllVCLK_ECP_CNTL, tmp);
        tmp = INPLL(pllPIXCLKS_CNTL);
        OUTPLL(pllPIXCLKS_CNTL, tmp);

        OUTPLL(MCLK_CNTL, 0xaa3f0000);
        OUTPLL(SCLK_CNTL, 0xffff0000);
        OUTPLL(pllMPLL_AUX_CNTL, 6);
        OUTPLL(pllSPLL_AUX_CNTL, 1);
        OUTPLL(MDLL_CKO, 0x9f009f);
        OUTPLL(MDLL_RDCKA, 0x830083);
        OUTPLL(pllMDLL_RDCKB, 0x830083);
        OUTPLL(PPLL_CNTL, 0xa433);
        OUTPLL(P2PLL_CNTL, 0xa433);
        OUTPLL(MPLL_CNTL, 0x0400a403);
        OUTPLL(SPLL_CNTL, 0x0400a433);

        tmp = INPLL(M_SPLL_REF_FB_DIV);
        OUTPLL(M_SPLL_REF_FB_DIV, tmp);
        tmp = INPLL(M_SPLL_REF_FB_DIV);
        OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0xc);
        INPLL(M_SPLL_REF_FB_DIV);

        tmp = INPLL(MPLL_CNTL);
        OUTREG8(CLOCK_CNTL_INDEX, MPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
        radeon_pll_errata_after_data(rinfo);

        tmp = INPLL(M_SPLL_REF_FB_DIV);
        OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0x5900);

        tmp = INPLL(MPLL_CNTL);
        OUTPLL(MPLL_CNTL, tmp & ~0x2);
        mdelay(1);
        tmp = INPLL(MPLL_CNTL);
        OUTPLL(MPLL_CNTL, tmp & ~0x1);
        mdelay(10);

        OUTPLL(MCLK_CNTL, 0xaa3f1212);
        mdelay(1);

        INPLL(M_SPLL_REF_FB_DIV);
        INPLL(MCLK_CNTL);
        INPLL(M_SPLL_REF_FB_DIV);

        tmp = INPLL(SPLL_CNTL);
        OUTREG8(CLOCK_CNTL_INDEX, SPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, (tmp >> 8) & 0xff);
        radeon_pll_errata_after_data(rinfo);

        tmp = INPLL(M_SPLL_REF_FB_DIV);
        OUTPLL(M_SPLL_REF_FB_DIV, tmp | 0x780000);

        tmp = INPLL(SPLL_CNTL);
        OUTPLL(SPLL_CNTL, tmp & ~0x1);
        mdelay(1);
        tmp = INPLL(SPLL_CNTL);
        OUTPLL(SPLL_CNTL, tmp & ~0x2);
        mdelay(10);

        tmp = INPLL(SCLK_CNTL);
        OUTPLL(SCLK_CNTL, tmp | 2);
        mdelay(1);

        cko = INPLL(pllMDLL_CKO);
        cka = INPLL(pllMDLL_RDCKA);
        ckb = INPLL(pllMDLL_RDCKB);

        cko &= ~(MDLL_CKO__MCKOA_SLEEP | MDLL_CKO__MCKOB_SLEEP);
        OUTPLL(pllMDLL_CKO, cko);
        mdelay(1);
        cko &= ~(MDLL_CKO__MCKOA_RESET | MDLL_CKO__MCKOB_RESET);
        OUTPLL(pllMDLL_CKO, cko);
        mdelay(5);

        cka &= ~(MDLL_RDCKA__MRDCKA0_SLEEP | MDLL_RDCKA__MRDCKA1_SLEEP);
        OUTPLL(pllMDLL_RDCKA, cka);
        mdelay(1);
        cka &= ~(MDLL_RDCKA__MRDCKA0_RESET | MDLL_RDCKA__MRDCKA1_RESET);
        OUTPLL(pllMDLL_RDCKA, cka);
        mdelay(5);

        ckb &= ~(MDLL_RDCKB__MRDCKB0_SLEEP | MDLL_RDCKB__MRDCKB1_SLEEP);
        OUTPLL(pllMDLL_RDCKB, ckb);
        mdelay(1);
        ckb &= ~(MDLL_RDCKB__MRDCKB0_RESET | MDLL_RDCKB__MRDCKB1_RESET);
        OUTPLL(pllMDLL_RDCKB, ckb);
        mdelay(5);

        OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, 0x151550ff);
        OUTREG(MC_IND_INDEX, 0);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, 0x151550ff);
        OUTREG(MC_IND_INDEX, 0);
        mdelay(1);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_A1, 0x141550ff);
        OUTREG(MC_IND_INDEX, 0);
        OUTMC(rinfo, ixMC_CHP_IO_CNTL_B1, 0x141550ff);
        OUTREG(MC_IND_INDEX, 0);
        mdelay(1);

        OUTPLL(pllHTOTAL_CNTL, 0);
        OUTPLL(pllHTOTAL2_CNTL, 0);

        OUTREG(MEM_CNTL, 0x29002901);
        OUTREG(MEM_SDRAM_MODE_REG, 0x45320032); /* XXX use save_regs[35]? */
        OUTREG(EXT_MEM_CNTL, 0x1a394333);
        OUTREG(MEM_IO_CNTL_A1, 0x0aac0aac);
        OUTREG(MEM_INIT_LATENCY_TIMER, 0x34444444);
        OUTREG(MEM_REFRESH_CNTL, 0x1f1f7218);   /* XXX or save_regs[42]? */
        OUTREG(MC_DEBUG, 0);
        OUTREG(MEM_IO_OE_CNTL, 0x04300430);

        OUTMC(rinfo, ixMC_IMP_CNTL, 0x00f460d6);
        OUTREG(MC_IND_INDEX, 0);
        OUTMC(rinfo, ixMC_IMP_CNTL_0, 0x00009249);
        OUTREG(MC_IND_INDEX, 0);

        OUTREG(CNFG_MEMSIZE, rinfo->video_ram);

        radeon_pm_full_reset_sdram(rinfo);

        INREG(FP_GEN_CNTL);
        OUTREG(TMDS_CNTL, 0x01000000);  /* XXX ? */
        tmp = INREG(FP_GEN_CNTL);
        tmp |= FP_CRTC_DONT_SHADOW_HEND | FP_CRTC_DONT_SHADOW_VPAR | 0x200;
        OUTREG(FP_GEN_CNTL, tmp);

        tmp = INREG(DISP_OUTPUT_CNTL);
        tmp &= ~0x400;
        OUTREG(DISP_OUTPUT_CNTL, tmp);

        OUTPLL(CLK_PIN_CNTL, rinfo->save_regs[4]);
        OUTPLL(CLK_PWRMGT_CNTL, rinfo->save_regs[1]);
        OUTPLL(PLL_PWRMGT_CNTL, rinfo->save_regs[0]);

        tmp = INPLL(MCLK_MISC);
        tmp |= MCLK_MISC__MC_MCLK_DYN_ENABLE | MCLK_MISC__IO_MCLK_DYN_ENABLE;
        OUTPLL(MCLK_MISC, tmp);

        tmp = INPLL(SCLK_CNTL);
        OUTPLL(SCLK_CNTL, tmp);

        OUTREG(CRTC_MORE_CNTL, 0);
        OUTREG8(CRTC_GEN_CNTL+1, 6);
        OUTREG8(CRTC_GEN_CNTL+3, 1);
        OUTREG(CRTC_PITCH, 32);

        tmp = INPLL(VCLK_ECP_CNTL);
        OUTPLL(VCLK_ECP_CNTL, tmp);

        tmp = INPLL(PPLL_CNTL);
        OUTPLL(PPLL_CNTL, tmp);

        /* palette stuff and BIOS_1_SCRATCH... */

        tmp = INREG(FP_GEN_CNTL);
        tmp2 = INREG(TMDS_TRANSMITTER_CNTL);
        tmp |= 2;
        OUTREG(FP_GEN_CNTL, tmp);
        mdelay(5);
        OUTREG(FP_GEN_CNTL, tmp);
        mdelay(5);
        OUTREG(TMDS_TRANSMITTER_CNTL, tmp2);
        OUTREG(CRTC_MORE_CNTL, 0);
        mdelay(20);

        tmp = INREG(CRTC_MORE_CNTL);
        OUTREG(CRTC_MORE_CNTL, tmp);

        cgc = INREG(CRTC_GEN_CNTL);
        cec = INREG(CRTC_EXT_CNTL);
        c2gc = INREG(CRTC2_GEN_CNTL);

        OUTREG(CRTC_H_SYNC_STRT_WID, 0x008e0580);
        OUTREG(CRTC_H_TOTAL_DISP, 0x009f00d2);
        OUTREG8(CLOCK_CNTL_INDEX, HTOTAL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA, 0);
        radeon_pll_errata_after_data(rinfo);
        OUTREG(CRTC_V_SYNC_STRT_WID, 0x00830403);
        OUTREG(CRTC_V_TOTAL_DISP, 0x03ff0429);
        OUTREG(FP_CRTC_H_TOTAL_DISP, 0x009f0033);
        OUTREG(FP_H_SYNC_STRT_WID, 0x008e0080);
        OUTREG(CRT_CRTC_H_SYNC_STRT_WID, 0x008e0080);
        OUTREG(FP_CRTC_V_TOTAL_DISP, 0x03ff002a);
        OUTREG(FP_V_SYNC_STRT_WID, 0x00830004);
        OUTREG(CRT_CRTC_V_SYNC_STRT_WID, 0x00830004);
        OUTREG(FP_HORZ_VERT_ACTIVE, 0x009f03ff);
        OUTREG(FP_HORZ_STRETCH, 0);
        OUTREG(FP_VERT_STRETCH, 0);
        OUTREG(OVR_CLR, 0);
        OUTREG(OVR_WID_LEFT_RIGHT, 0);
        OUTREG(OVR_WID_TOP_BOTTOM, 0);

        tmp = INPLL(PPLL_REF_DIV);
        tmp = (tmp & ~PPLL_REF_DIV_MASK) | rinfo->pll.ref_div;
        OUTPLL(PPLL_REF_DIV, tmp);
        INPLL(PPLL_REF_DIV);

        OUTREG8(CLOCK_CNTL_INDEX, PPLL_CNTL + PLL_WR_EN);
        radeon_pll_errata_after_index(rinfo);
        OUTREG8(CLOCK_CNTL_DATA + 1, 0xbc);
        radeon_pll_errata_after_data(rinfo);

        tmp = INREG(CLOCK_CNTL_INDEX);
        radeon_pll_errata_after_index(rinfo);
        OUTREG(CLOCK_CNTL_INDEX, tmp & 0xff);
        radeon_pll_errata_after_index(rinfo);
        radeon_pll_errata_after_data(rinfo);

        OUTPLL(PPLL_DIV_0, 0x48090);

        tmp = INPLL(PPLL_CNTL);
        OUTPLL(PPLL_CNTL, tmp & ~0x2);
        mdelay(1);
        tmp = INPLL(PPLL_CNTL);
        OUTPLL(PPLL_CNTL, tmp & ~0x1);
        mdelay(10);

        tmp = INPLL(VCLK_ECP_CNTL);
        OUTPLL(VCLK_ECP_CNTL, tmp | 3);
        mdelay(1);

        tmp = INPLL(VCLK_ECP_CNTL);
        OUTPLL(VCLK_ECP_CNTL, tmp);

        c2gc |= CRTC2_DISP_REQ_EN_B;
        OUTREG(CRTC2_GEN_CNTL, c2gc);
        cgc |= CRTC_EN;
        OUTREG(CRTC_GEN_CNTL, cgc);
        OUTREG(CRTC_EXT_CNTL, cec);
        OUTREG(CRTC_PITCH, 0xa0);
        OUTREG(CRTC_OFFSET, 0);
        OUTREG(CRTC_OFFSET_CNTL, 0);

        OUTREG(GRPH_BUFFER_CNTL, 0x20117c7c);
        OUTREG(GRPH2_BUFFER_CNTL, 0x00205c5c);

        tmp2 = INREG(FP_GEN_CNTL);
        tmp = INREG(TMDS_TRANSMITTER_CNTL);
        OUTREG(0x2a8, 0x0000061b);
        tmp |= TMDS_PLL_EN;
        OUTREG(TMDS_TRANSMITTER_CNTL, tmp);
        mdelay(1);
        tmp &= ~TMDS_PLLRST;
        OUTREG(TMDS_TRANSMITTER_CNTL, tmp);
        tmp2 &= ~2;
        tmp2 |= FP_TMDS_EN;
        OUTREG(FP_GEN_CNTL, tmp2);
        mdelay(5);
        tmp2 |= FP_FPON;
        OUTREG(FP_GEN_CNTL, tmp2);

        OUTREG(CUR_HORZ_VERT_OFF, CUR_LOCK | 1);
        cgc = INREG(CRTC_GEN_CNTL);
        OUTREG(CUR_HORZ_VERT_POSN, 0xbfff0fff);
        cgc |= 0x10000;
        OUTREG(CUR_OFFSET, 0);
}
#endif /* 0 */

#endif /* CONFIG_PPC */

static void radeonfb_whack_power_state(struct radeonfb_info *rinfo, pci_power_t state)
{
        u16 pwr_cmd;

        for (;;) {
                pci_read_config_word(rinfo->pdev,
                                     rinfo->pdev->pm_cap + PCI_PM_CTRL,
                                     &pwr_cmd);
                if (pwr_cmd & state)
                        break;
                pwr_cmd = (pwr_cmd & ~PCI_PM_CTRL_STATE_MASK) | state;
                pci_write_config_word(rinfo->pdev,
                                      rinfo->pdev->pm_cap + PCI_PM_CTRL,
                                      pwr_cmd);
                msleep(500);
        }
        rinfo->pdev->current_state = state;
}

static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
{
        u32 tmp;

        if (!rinfo->pdev->pm_cap)
                return;

        /* Set the chip into appropriate suspend mode (we use D2,
         * D3 would require a compete re-initialization of the chip,
         * including PCI config registers, clocks, AGP conf, ...)
         */
        if (suspend) {
                printk(KERN_DEBUG "radeonfb (%s): switching to D2 state...\n",
                       pci_name(rinfo->pdev));

                /* Disable dynamic power management of clocks for the
                 * duration of the suspend/resume process
                 */
                radeon_pm_disable_dynamic_mode(rinfo);

                /* Save some registers */
                radeon_pm_save_regs(rinfo, 0);

                /* Prepare mobility chips for suspend.
                 */
                if (rinfo->is_mobility) {
                        /* Program V2CLK */
                        radeon_pm_program_v2clk(rinfo);
                
                        /* Disable IO PADs */
                        radeon_pm_disable_iopad(rinfo);

                        /* Set low current */
                        radeon_pm_low_current(rinfo);

                        /* Prepare chip for power management */
                        radeon_pm_setup_for_suspend(rinfo);

                        if (rinfo->family <= CHIP_FAMILY_RV280) {
                                /* Reset the MDLL */
                                /* because both INPLL and OUTPLL take the same
                                 * lock, that's why. */
                                tmp = INPLL( pllMDLL_CKO) | MDLL_CKO__MCKOA_RESET
                                        | MDLL_CKO__MCKOB_RESET;
                                OUTPLL( pllMDLL_CKO, tmp );
                        }
                }

                /* Switch PCI power management to D2. */
                pci_disable_device(rinfo->pdev);
                pci_save_state(rinfo->pdev);
                /* The chip seems to need us to whack the PM register
                 * repeatedly until it sticks. We do that -prior- to
                 * calling pci_set_power_state()
                 */
                radeonfb_whack_power_state(rinfo, PCI_D2);
                pci_platform_power_transition(rinfo->pdev, PCI_D2);
        } else {
                printk(KERN_DEBUG "radeonfb (%s): switching to D0 state...\n",
                       pci_name(rinfo->pdev));

                if (rinfo->family <= CHIP_FAMILY_RV250) {
                        /* Reset the SDRAM controller  */
                        radeon_pm_full_reset_sdram(rinfo);

                        /* Restore some registers */
                        radeon_pm_restore_regs(rinfo);
                } else {
                        /* Restore registers first */
                        radeon_pm_restore_regs(rinfo);
                        /* init sdram controller */
                        radeon_pm_full_reset_sdram(rinfo);
                }
        }
}

static int radeonfb_pci_suspend_late(struct device *dev, pm_message_t mesg)
{
        struct pci_dev *pdev = to_pci_dev(dev);
        struct fb_info *info = pci_get_drvdata(pdev);
        struct radeonfb_info *rinfo = info->par;

        if (mesg.event == pdev->dev.power.power_state.event)
                return 0;

        printk(KERN_DEBUG "radeonfb (%s): suspending for event: %d...\n",
               pci_name(pdev), mesg.event);

        /* For suspend-to-disk, we cheat here. We don't suspend anything and
         * let fbcon continue drawing until we are all set. That shouldn't
         * really cause any problem at this point, provided that the wakeup
         * code knows that any state in memory may not match the HW
         */
        switch (mesg.event) {
        case PM_EVENT_FREEZE:           /* about to take snapshot */
        case PM_EVENT_PRETHAW:          /* before restoring snapshot */
                goto done;
        }

        console_lock();

        fb_set_suspend(info, 1);

        if (!(info->flags & FBINFO_HWACCEL_DISABLED)) {
                /* Make sure engine is reset */
                radeon_engine_idle();
                radeonfb_engine_reset(rinfo);
                radeon_engine_idle();
        }

        /* Blank display and LCD */
        radeon_screen_blank(rinfo, FB_BLANK_POWERDOWN, 1);

        /* Sleep */
        rinfo->asleep = 1;
        rinfo->lock_blank = 1;
        del_timer_sync(&rinfo->lvds_timer);

#ifdef CONFIG_PPC_PMAC
        /* On powermac, we have hooks to properly suspend/resume AGP now,
         * use them here. We'll ultimately need some generic support here,
         * but the generic code isn't quite ready for that yet
         */
        pmac_suspend_agp_for_card(pdev);
#endif /* CONFIG_PPC_PMAC */

        /* If we support wakeup from poweroff, we save all regs we can including cfg
         * space
         */
        if (rinfo->pm_mode & radeon_pm_off) {
                /* Always disable dynamic clocks or weird things are happening when
                 * the chip goes off (basically the panel doesn't shut down properly
                 * and we crash on wakeup),
                 * also, we want the saved regs context to have no dynamic clocks in
                 * it, we'll restore the dynamic clocks state on wakeup
                 */
                radeon_pm_disable_dynamic_mode(rinfo);
                msleep(50);
                radeon_pm_save_regs(rinfo, 1);

                if (rinfo->is_mobility && !(rinfo->pm_mode & radeon_pm_d2)) {
                        /* Switch off LVDS interface */
                        usleep_range(1000, 2000);
                        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_BL_MOD_EN));
                        usleep_range(1000, 2000);
                        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_EN | LVDS_ON));
                        OUTREG(LVDS_PLL_CNTL, (INREG(LVDS_PLL_CNTL) & ~30000) | 0x20000);
                        msleep(20);
                        OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_DIGON));
                }
        }
        /* If we support D2, we go to it (should be fixed later with a flag forcing
         * D3 only for some laptops)
         */
        if (rinfo->pm_mode & radeon_pm_d2)
                radeon_set_suspend(rinfo, 1);

        console_unlock();

 done:
        pdev->dev.power.power_state = mesg;

        return 0;
}

static int radeonfb_pci_suspend(struct device *dev)
{
        return radeonfb_pci_suspend_late(dev, PMSG_SUSPEND);
}

static int radeonfb_pci_hibernate(struct device *dev)
{
        return radeonfb_pci_suspend_late(dev, PMSG_HIBERNATE);
}

static int radeonfb_pci_freeze(struct device *dev)
{
        return radeonfb_pci_suspend_late(dev, PMSG_FREEZE);
}

static int radeon_check_power_loss(struct radeonfb_info *rinfo)
{
        return rinfo->save_regs[4] != INPLL(CLK_PIN_CNTL) ||
               rinfo->save_regs[2] != INPLL(MCLK_CNTL) ||
               rinfo->save_regs[3] != INPLL(SCLK_CNTL);
}

static int radeonfb_pci_resume(struct device *dev)
{
        struct pci_dev *pdev = to_pci_dev(dev);
        struct fb_info *info = pci_get_drvdata(pdev);
        struct radeonfb_info *rinfo = info->par;
        int rc = 0;

        if (pdev->dev.power.power_state.event == PM_EVENT_ON)
                return 0;

        if (rinfo->no_schedule) {
                if (!console_trylock())
                        return 0;
        } else
                console_lock();

        printk(KERN_DEBUG "radeonfb (%s): resuming from state: %d...\n",
               pci_name(pdev), pdev->dev.power.power_state.event);

        /* PCI state will have been restored by the core, so
         * we should be in D0 now with our config space fully
         * restored
         */
        if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
                /* Wakeup chip */
                if ((rinfo->pm_mode & radeon_pm_off) && radeon_check_power_loss(rinfo)) {
                        if (rinfo->reinit_func != NULL)
                                rinfo->reinit_func(rinfo);
                        else {
                                printk(KERN_ERR "radeonfb (%s): can't resume radeon from"
                                       " D3 cold, need softboot !", pci_name(pdev));
                                rc = -EIO;
                                goto bail;
                        }
                }
                /* If we support D2, try to resume... we should check what was our
                 * state though... (were we really in D2 state ?). Right now, this code
                 * is only enable on Macs so it's fine.
                 */
                else if (rinfo->pm_mode & radeon_pm_d2)
                        radeon_set_suspend(rinfo, 0);

                rinfo->asleep = 0;
        } else
                radeon_engine_idle();

        /* Restore display & engine */
        radeon_write_mode (rinfo, &rinfo->state, 1);
        if (!(info->flags & FBINFO_HWACCEL_DISABLED))
                radeonfb_engine_init (rinfo);

        fb_pan_display(info, &info->var);
        fb_set_cmap(&info->cmap, info);

        /* Refresh */
        fb_set_suspend(info, 0);

        /* Unblank */
        rinfo->lock_blank = 0;
        radeon_screen_blank(rinfo, FB_BLANK_UNBLANK, 1);

#ifdef CONFIG_PPC_PMAC
        /* On powermac, we have hooks to properly suspend/resume AGP now,
         * use them here. We'll ultimately need some generic support here,
         * but the generic code isn't quite ready for that yet
         */
        pmac_resume_agp_for_card(pdev);
#endif /* CONFIG_PPC_PMAC */


        /* Check status of dynclk */
        if (rinfo->dynclk == 1)
                radeon_pm_enable_dynamic_mode(rinfo);
        else if (rinfo->dynclk == 0)
                radeon_pm_disable_dynamic_mode(rinfo);

        pdev->dev.power.power_state = PMSG_ON;

 bail:
        console_unlock();

        return rc;
}

const struct dev_pm_ops radeonfb_pci_pm_ops = {
        .suspend        = radeonfb_pci_suspend,
        .resume         = radeonfb_pci_resume,
        .freeze         = radeonfb_pci_freeze,
        .thaw           = radeonfb_pci_resume,
        .poweroff       = radeonfb_pci_hibernate,
        .restore        = radeonfb_pci_resume,
};

#ifdef CONFIG_PPC__disabled
static void radeonfb_early_resume(void *data)
{
        struct radeonfb_info *rinfo = data;

        rinfo->no_schedule = 1;
        pci_restore_state(rinfo->pdev);
        radeonfb_pci_resume(rinfo->pdev);
        rinfo->no_schedule = 0;
}
#endif /* CONFIG_PPC */

#endif /* CONFIG_PM */

void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep)
{
        /* Enable/Disable dynamic clocks: TODO add sysfs access */
        if (rinfo->family == CHIP_FAMILY_RS480)
                rinfo->dynclk = -1;
        else
                rinfo->dynclk = dynclk;

        if (rinfo->dynclk == 1) {
                radeon_pm_enable_dynamic_mode(rinfo);
                printk("radeonfb: Dynamic Clock Power Management enabled\n");
        } else if (rinfo->dynclk == 0) {
                radeon_pm_disable_dynamic_mode(rinfo);
                printk("radeonfb: Dynamic Clock Power Management disabled\n");
        }

#if defined(CONFIG_PM)
#if defined(CONFIG_PPC_PMAC)
        /* Check if we can power manage on suspend/resume. We can do
         * D2 on M6, M7 and M9, and we can resume from D3 cold a few other
         * "Mac" cards, but that's all. We need more infos about what the
         * BIOS does tho. Right now, all this PM stuff is pmac-only for that
         * reason. --BenH
         */
        if (machine_is(powermac) && rinfo->of_node) {
                if (rinfo->is_mobility && rinfo->pdev->pm_cap &&
                    rinfo->family <= CHIP_FAMILY_RV250)
                        rinfo->pm_mode |= radeon_pm_d2;

                /* We can restart Jasper (M10 chip in albooks), BlueStone (7500 chip
                 * in some desktop G4s), Via (M9+ chip on iBook G4) and
                 * Snowy (M11 chip on iBook G4 manufactured after July 2005)
                 */
                if (of_node_name_eq(rinfo->of_node, "ATY,JasperParent") ||
                    of_node_name_eq(rinfo->of_node, "ATY,SnowyParent")) {
                        rinfo->reinit_func = radeon_reinitialize_M10;
                        rinfo->pm_mode |= radeon_pm_off;
                }
#if 0 /* Not ready yet */
                if (!strcmp(rinfo->of_node->name, "ATY,BlueStoneParent")) {
                        rinfo->reinit_func = radeon_reinitialize_QW;
                        rinfo->pm_mode |= radeon_pm_off;
                }
#endif
                if (of_node_name_eq(rinfo->of_node, "ATY,ViaParent")) {
                        rinfo->reinit_func = radeon_reinitialize_M9P;
                        rinfo->pm_mode |= radeon_pm_off;
                }

                /* If any of the above is set, we assume the machine can sleep/resume.
                 * It's a bit of a "shortcut" but will work fine. Ideally, we need infos
                 * from the platform about what happens to the chip...
                 * Now we tell the platform about our capability
                 */
                if (rinfo->pm_mode != radeon_pm_none) {
                        pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, rinfo->of_node, 0, 1);
#if 0 /* Disable the early video resume hack for now as it's causing problems, among
       * others we now rely on the PCI core restoring the config space for us, which
       * isn't the case with that hack, and that code path causes various things to
       * be called with interrupts off while they shouldn't. I'm leaving the code in
       * as it can be useful for debugging purposes
       */
                        pmac_set_early_video_resume(radeonfb_early_resume, rinfo);
#endif
                }

#if 0
                /* Power down TV DAC, that saves a significant amount of power,
                 * we'll have something better once we actually have some TVOut
                 * support
                 */
                OUTREG(TV_DAC_CNTL, INREG(TV_DAC_CNTL) | 0x07000000);
#endif
        }
#endif /* defined(CONFIG_PPC_PMAC) */
#endif /* defined(CONFIG_PM) */

        if (ignore_devlist)
                printk(KERN_DEBUG
                       "radeonfb: skipping test for device workarounds\n");
        else
                radeon_apply_workarounds(rinfo);

        if (force_sleep) {
                printk(KERN_DEBUG
                       "radeonfb: forcefully enabling D2 sleep mode\n");
                rinfo->pm_mode |= radeon_pm_d2;
        }
}

void radeonfb_pm_exit(struct radeonfb_info *rinfo)
{
#if defined(CONFIG_PM) && defined(CONFIG_PPC_PMAC)
        if (rinfo->pm_mode != radeon_pm_none)
                pmac_set_early_video_resume(NULL, NULL);
#endif
}