Commit 9d0ec51d authored by Cristian Ciocaltea's avatar Cristian Ciocaltea Committed by Vinod Koul
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phy: rockchip: samsung-hdptx: Add high color depth management 



Add support for 8-bit, 10-bit, 12-bit and 16-bit color depth setup.

Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarCristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: default avatarDmitry Baryshkov <dmtiry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250318-phy-sam-hdptx-bpc-v6-14-8cb1678e7663@collabora.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 45b14bdc

drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c

+22 −1
Original line number Diff line number Diff line
@@ -1028,6 +1028,9 @@ static int rk_hdptx_ropll_tmds_cmn_config(struct rk_hdptx_phy *hdptx) 
	regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_POSTDIV_SEL_MASK,

			   FIELD_PREP(PLL_PCG_POSTDIV_SEL_MASK, cfg->pms_sdiv));



	regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_CLK_SEL_MASK,

			   FIELD_PREP(PLL_PCG_CLK_SEL_MASK, (hdptx->hdmi_cfg.bpc - 8) >> 1));



	regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_CLK_EN_MASK,

			   FIELD_PREP(PLL_PCG_CLK_EN_MASK, 0x1));
@@ -1427,7 +1430,8 @@ static int rk_hdptx_phy_power_on(struct phy *phy) 
			hdptx->hdmi_cfg.tmds_char_rate *= 100;

		}



		dev_dbg(hdptx->dev, "%s rate=%llu\n", __func__, hdptx->hdmi_cfg.tmds_char_rate);

		dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,

			hdptx->hdmi_cfg.tmds_char_rate, hdptx->hdmi_cfg.bpc);

	}



	ret = rk_hdptx_phy_consumer_get(hdptx);
@@ -1492,6 +1496,19 @@ static int rk_hdptx_phy_verify_hdmi_config(struct rk_hdptx_phy *hdptx, 
	    !rk_hdptx_phy_clk_pll_calc(hdmi->tmds_char_rate, NULL))

		return -EINVAL;



	if (!hdmi->bpc)

		hdmi->bpc = 8;



	switch (hdmi->bpc) {

	case 8:

	case 10:

	case 12:

	case 16:

		break;

	default:

		return -EINVAL;

	};



	return 0;

}
@@ -1764,6 +1781,9 @@ static int rk_hdptx_phy_configure(struct phy *phy, union phy_configure_opts *opt 
			hdptx->hdmi_cfg = opts->hdmi;

			hdptx->restrict_rate_change = true;

		}



		dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,

			hdptx->hdmi_cfg.tmds_char_rate, hdptx->hdmi_cfg.bpc);

		return ret;

	}
@@ -1972,6 +1992,7 @@ static int rk_hdptx_phy_probe(struct platform_device *pdev) 
		return -ENOMEM;



	hdptx->dev = dev;

	hdptx->hdmi_cfg.bpc = 8;



	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);

	if (IS_ERR(regs))