drm/rockchip: dw_hdmi: Add support for rk3368

Change-Id: I6a49447a5edd53013ed81875f351089793914f77
Signed-off-by: WeiYong Bi <bivvy.bi@rock-chips.com>

Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt

@@ -14,6 +14,7 @@ Required properties:
 - compatible: should be one of the following:
 		"rockchip,rk3288-dw-hdmi"
 		"rockchip,rk3328-dw-hdmi"
+		"rockchip,rk3368-dw-hdmi"
 		"rockchip,rk3399-dw-hdmi"
 - reg: See dw_hdmi.txt.
 - reg-io-width: See dw_hdmi.txt. Shall be 4.

drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

@@ -520,6 +520,19 @@ static const struct dw_hdmi_plat_data rk3328_hdmi_drv_data = {
 	.phy_force_vendor = true,
 };
 
+static struct rockchip_hdmi_chip_data rk3368_chip_data = {
+	.lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3368_hdmi_drv_data = {
+	.mode_valid = dw_hdmi_rockchip_mode_valid,
+	.mpll_cfg   = rockchip_mpll_cfg,
+	.mpll_cfg_420 = rockchip_mpll_cfg_420,
+	.cur_ctr    = rockchip_cur_ctr,
+	.phy_config = rockchip_phy_config,
+	.phy_data = &rk3368_chip_data,
+};
+
 static struct rockchip_hdmi_chip_data rk3399_chip_data = {
 	.lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
 	.lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL),
@@ -542,6 +555,10 @@ static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
 	{ .compatible = "rockchip,rk3328-dw-hdmi",
 	  .data = &rk3328_hdmi_drv_data
 	},
+	{
+	 .compatible = "rockchip,rk3368-dw-hdmi",
+	 .data = &rk3368_hdmi_drv_data
+	},
 	{ .compatible = "rockchip,rk3399-dw-hdmi",
 	  .data = &rk3399_hdmi_drv_data
 	},