LXR uboot/drivers/video/rockchip/rk3399

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
   4 */
   5
   6#include <common.h>
   7#include <clk.h>
   8#include <display.h>
   9#include <dm.h>
  10#include <dw_hdmi.h>
  11#include <edid.h>
  12#include <regmap.h>
  13#include <syscon.h>
  14#include <asm/gpio.h>
  15#include <asm/io.h>
  16#include <asm/arch-rockchip/clock.h>
  17#include <asm/arch-rockchip/hardware.h>
  18#include <asm/arch-rockchip/grf_rk3399.h>
  19#include <power/regulator.h>
  20#include "rk_hdmi.h"
  21
  22static int rk3399_hdmi_enable(struct udevice *dev, int panel_bpp,
  23                              const struct display_timing *edid)
  24{
  25        struct rk_hdmi_priv *priv = dev_get_priv(dev);
  26        struct display_plat *uc_plat = dev_get_uclass_plat(dev);
  27        int vop_id = uc_plat->source_id;
  28        struct rk3399_grf_regs *grf = priv->grf;
  29
  30        /* select the hdmi encoder input data from our source_id */
  31        rk_clrsetreg(&grf->soc_con20, GRF_RK3399_HDMI_VOP_SEL_MASK,
  32                     (vop_id == 1) ? GRF_RK3399_HDMI_VOP_SEL_L : 0);
  33
  34        return dw_hdmi_enable(&priv->hdmi, edid);
  35}
  36
  37static int rk3399_hdmi_of_to_plat(struct udevice *dev)
  38{
  39        struct rk_hdmi_priv *priv = dev_get_priv(dev);
  40        struct dw_hdmi *hdmi = &priv->hdmi;
  41
  42        hdmi->i2c_clk_high = 0x7a;
  43        hdmi->i2c_clk_low = 0x8d;
  44
  45        return rk_hdmi_of_to_plat(dev);
  46}
  47
  48static const char * const rk3399_regulator_names[] = {
  49        "vcc1v8_hdmi",
  50        "vcc0v9_hdmi"
  51};
  52
  53static int rk3399_hdmi_probe(struct udevice *dev)
  54{
  55        /* Enable regulators required for HDMI */
  56        rk_hdmi_probe_regulators(dev, rk3399_regulator_names,
  57                                 ARRAY_SIZE(rk3399_regulator_names));
  58
  59        return rk_hdmi_probe(dev);
  60}
  61
  62static const struct dm_display_ops rk3399_hdmi_ops = {
  63        .read_edid = rk_hdmi_read_edid,
  64        .enable = rk3399_hdmi_enable,
  65};
  66
  67static const struct udevice_id rk3399_hdmi_ids[] = {
  68        { .compatible = "rockchip,rk3399-dw-hdmi" },
  69        { }
  70};
  71
  72U_BOOT_DRIVER(rk3399_hdmi_rockchip) = {
  73        .name = "rk3399_hdmi_rockchip",
  74        .id = UCLASS_DISPLAY,
  75        .of_match = rk3399_hdmi_ids,
  76        .ops = &rk3399_hdmi_ops,
  77        .of_to_plat = rk3399_hdmi_of_to_plat,
  78        .probe = rk3399_hdmi_probe,
  79        .priv_auto      = sizeof(struct rk_hdmi_priv),
  80};
  81