linux/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
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   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Copyright (C) 2018 Jernej Skrabec <jernej.skrabec@siol.net>
   4 */
   5
   6#ifndef _SUN8I_DW_HDMI_H_
   7#define _SUN8I_DW_HDMI_H_
   8
   9#include <drm/bridge/dw_hdmi.h>
  10#include <drm/drm_encoder.h>
  11#include <linux/clk.h>
  12#include <linux/regmap.h>
  13#include <linux/regulator/consumer.h>
  14#include <linux/reset.h>
  15
  16#define SUN8I_HDMI_PHY_DBG_CTRL_REG     0x0000
  17#define SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK         BIT(0)
  18#define SUN8I_HDMI_PHY_DBG_CTRL_POL_MASK        GENMASK(15, 8)
  19#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NHSYNC      BIT(8)
  20#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NVSYNC      BIT(9)
  21#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR_MASK       GENMASK(23, 16)
  22#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR(addr)      (addr << 16)
  23
  24#define SUN8I_HDMI_PHY_REXT_CTRL_REG    0x0004
  25#define SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN        BIT(31)
  26
  27#define SUN8I_HDMI_PHY_READ_EN_REG      0x0010
  28#define SUN8I_HDMI_PHY_READ_EN_MAGIC            0x54524545
  29
  30#define SUN8I_HDMI_PHY_UNSCRAMBLE_REG   0x0014
  31#define SUN8I_HDMI_PHY_UNSCRAMBLE_MAGIC         0x42494E47
  32
  33#define SUN8I_HDMI_PHY_ANA_CFG1_REG     0x0020
  34#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SWI         BIT(31)
  35#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWEND       BIT(30)
  36#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWENC       BIT(29)
  37#define SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW       BIT(28)
  38#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVRCAL(x)   ((x) << 26)
  39#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVBH(x)     ((x) << 24)
  40#define SUN8I_HDMI_PHY_ANA_CFG1_AMP_OPT         BIT(23)
  41#define SUN8I_HDMI_PHY_ANA_CFG1_EMP_OPT         BIT(22)
  42#define SUN8I_HDMI_PHY_ANA_CFG1_AMPCK_OPT       BIT(21)
  43#define SUN8I_HDMI_PHY_ANA_CFG1_EMPCK_OPT       BIT(20)
  44#define SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL          BIT(19)
  45#define SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG         BIT(18)
  46#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SCKTMDS     BIT(17)
  47#define SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN      BIT(16)
  48#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK       GENMASK(15, 12)
  49#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_ALL        (0xf << 12)
  50#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK  BIT(11)
  51#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2    BIT(10)
  52#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1    BIT(9)
  53#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0    BIT(8)
  54#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK   BIT(7)
  55#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2     BIT(6)
  56#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1     BIT(5)
  57#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0     BIT(4)
  58#define SUN8I_HDMI_PHY_ANA_CFG1_CKEN            BIT(3)
  59#define SUN8I_HDMI_PHY_ANA_CFG1_LDOEN           BIT(2)
  60#define SUN8I_HDMI_PHY_ANA_CFG1_ENVBS           BIT(1)
  61#define SUN8I_HDMI_PHY_ANA_CFG1_ENBI            BIT(0)
  62
  63#define SUN8I_HDMI_PHY_ANA_CFG2_REG     0x0024
  64#define SUN8I_HDMI_PHY_ANA_CFG2_M_EN            BIT(31)
  65#define SUN8I_HDMI_PHY_ANA_CFG2_PLLDBEN         BIT(30)
  66#define SUN8I_HDMI_PHY_ANA_CFG2_SEN             BIT(29)
  67#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDPD       BIT(28)
  68#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDEN       BIT(27)
  69#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLRCK       BIT(26)
  70#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLR(x)      ((x) << 23)
  71#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DENCK       BIT(22)
  72#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DEN         BIT(21)
  73#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CD(x)       ((x) << 19)
  74#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CKSS(x)     ((x) << 17)
  75#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK     BIT(16)
  76#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW       BIT(15)
  77#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CSMPS(x)    ((x) << 13)
  78#define SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(x)      ((x) << 10)
  79#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOSTCK(x)  ((x) << 8)
  80#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOST(x)    ((x) << 6)
  81#define SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(x)    ((x) << 0)
  82
  83#define SUN8I_HDMI_PHY_ANA_CFG3_REG     0x0028
  84#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOWCK(x)   ((x) << 30)
  85#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOW(x)     ((x) << 28)
  86#define SUN8I_HDMI_PHY_ANA_CFG3_REG_WIRE(x)     ((x) << 18)
  87#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(x)    ((x) << 14)
  88#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMPCK(x)    ((x) << 11)
  89#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(x)      ((x) << 7)
  90#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(x)      ((x) << 4)
  91#define SUN8I_HDMI_PHY_ANA_CFG3_SDAPD           BIT(3)
  92#define SUN8I_HDMI_PHY_ANA_CFG3_SDAEN           BIT(2)
  93#define SUN8I_HDMI_PHY_ANA_CFG3_SCLPD           BIT(1)
  94#define SUN8I_HDMI_PHY_ANA_CFG3_SCLEN           BIT(0)
  95
  96#define SUN8I_HDMI_PHY_PLL_CFG1_REG     0x002c
  97#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1         BIT(31)
  98#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD          BIT(30)
  99#define SUN8I_HDMI_PHY_PLL_CFG1_LDO2_EN         BIT(29)
 100#define SUN8I_HDMI_PHY_PLL_CFG1_LDO1_EN         BIT(28)
 101#define SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33        BIT(27)
 102#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK    BIT(26)
 103#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_SHIFT  26
 104#define SUN8I_HDMI_PHY_PLL_CFG1_PLLEN           BIT(25)
 105#define SUN8I_HDMI_PHY_PLL_CFG1_LDO_VSET(x)     ((x) << 22)
 106#define SUN8I_HDMI_PHY_PLL_CFG1_UNKNOWN(x)      ((x) << 20)
 107#define SUN8I_HDMI_PHY_PLL_CFG1_PLLDBEN         BIT(19)
 108#define SUN8I_HDMI_PHY_PLL_CFG1_CS              BIT(18)
 109#define SUN8I_HDMI_PHY_PLL_CFG1_CP_S(x)         ((x) << 13)
 110#define SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(x)      ((x) << 7)
 111#define SUN8I_HDMI_PHY_PLL_CFG1_BWS             BIT(6)
 112#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_MSK        GENMASK(5, 0)
 113#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_SHIFT      0
 114
 115#define SUN8I_HDMI_PHY_PLL_CFG2_REG     0x0030
 116#define SUN8I_HDMI_PHY_PLL_CFG2_SV_H            BIT(31)
 117#define SUN8I_HDMI_PHY_PLL_CFG2_PDCLKSEL(x)     ((x) << 29)
 118#define SUN8I_HDMI_PHY_PLL_CFG2_CLKSTEP(x)      ((x) << 27)
 119#define SUN8I_HDMI_PHY_PLL_CFG2_PSET(x)         ((x) << 24)
 120#define SUN8I_HDMI_PHY_PLL_CFG2_PCLK_SEL        BIT(23)
 121#define SUN8I_HDMI_PHY_PLL_CFG2_AUTOSYNC_DIS    BIT(22)
 122#define SUN8I_HDMI_PHY_PLL_CFG2_VREG2_OUT_EN    BIT(21)
 123#define SUN8I_HDMI_PHY_PLL_CFG2_VREG1_OUT_EN    BIT(20)
 124#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN_EN      BIT(19)
 125#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN(x)      ((x) << 16)
 126#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(x)        ((x) << 12)
 127#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_RST_IN      BIT(11)
 128#define SUN8I_HDMI_PHY_PLL_CFG2_SINT_FRAC       BIT(10)
 129#define SUN8I_HDMI_PHY_PLL_CFG2_SDIV2           BIT(9)
 130#define SUN8I_HDMI_PHY_PLL_CFG2_S(x)            ((x) << 6)
 131#define SUN8I_HDMI_PHY_PLL_CFG2_S6P25_7P5       BIT(5)
 132#define SUN8I_HDMI_PHY_PLL_CFG2_S5_7            BIT(4)
 133#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_MSK      GENMASK(3, 0)
 134#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_SHIFT    0
 135#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV(x)       (((x) - 1) << 0)
 136
 137#define SUN8I_HDMI_PHY_PLL_CFG3_REG     0x0034
 138#define SUN8I_HDMI_PHY_PLL_CFG3_SOUT_DIV2       BIT(0)
 139
 140#define SUN8I_HDMI_PHY_ANA_STS_REG      0x0038
 141#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_SHIFT      11
 142#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_MSK        GENMASK(16, 11)
 143#define SUN8I_HDMI_PHY_ANA_STS_RCALEND2D        BIT(7)
 144#define SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK        GENMASK(5, 0)
 145
 146#define SUN8I_HDMI_PHY_CEC_REG          0x003c
 147
 148struct sun8i_hdmi_phy;
 149
 150struct sun8i_hdmi_phy_variant {
 151        bool has_phy_clk;
 152        bool has_second_pll;
 153        unsigned int is_custom_phy : 1;
 154        const struct dw_hdmi_curr_ctrl *cur_ctr;
 155        const struct dw_hdmi_mpll_config *mpll_cfg;
 156        const struct dw_hdmi_phy_config *phy_cfg;
 157        void (*phy_init)(struct sun8i_hdmi_phy *phy);
 158        void (*phy_disable)(struct dw_hdmi *hdmi,
 159                            struct sun8i_hdmi_phy *phy);
 160        int  (*phy_config)(struct dw_hdmi *hdmi,
 161                           struct sun8i_hdmi_phy *phy,
 162                           unsigned int clk_rate);
 163};
 164
 165struct sun8i_hdmi_phy {
 166        struct clk                      *clk_bus;
 167        struct clk                      *clk_mod;
 168        struct clk                      *clk_phy;
 169        struct clk                      *clk_pll0;
 170        struct clk                      *clk_pll1;
 171        unsigned int                    rcal;
 172        struct regmap                   *regs;
 173        struct reset_control            *rst_phy;
 174        struct sun8i_hdmi_phy_variant   *variant;
 175};
 176
 177struct sun8i_dw_hdmi_quirks {
 178        enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
 179                                           const struct drm_display_mode *mode);
 180        unsigned int set_rate : 1;
 181};
 182
 183struct sun8i_dw_hdmi {
 184        struct clk                      *clk_tmds;
 185        struct device                   *dev;
 186        struct dw_hdmi                  *hdmi;
 187        struct drm_encoder              encoder;
 188        struct sun8i_hdmi_phy           *phy;
 189        struct dw_hdmi_plat_data        plat_data;
 190        struct regulator                *regulator;
 191        const struct sun8i_dw_hdmi_quirks *quirks;
 192        struct reset_control            *rst_ctrl;
 193};
 194
 195static inline struct sun8i_dw_hdmi *
 196encoder_to_sun8i_dw_hdmi(struct drm_encoder *encoder)
 197{
 198        return container_of(encoder, struct sun8i_dw_hdmi, encoder);
 199}
 200
 201int sun8i_hdmi_phy_probe(struct sun8i_dw_hdmi *hdmi, struct device_node *node);
 202void sun8i_hdmi_phy_remove(struct sun8i_dw_hdmi *hdmi);
 203
 204void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
 205void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
 206                            struct dw_hdmi_plat_data *plat_data);
 207
 208int sun8i_phy_clk_create(struct sun8i_hdmi_phy *phy, struct device *dev,
 209                         bool second_parent);
 210
 211#endif /* _SUN8I_DW_HDMI_H_ */
 212