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From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: Vinod Koul <vkoul@kernel.org>,
	 Neil Armstrong <neil.armstrong@linaro.org>,
	 Heiko Stuebner <heiko@sntech.de>,
	Algea Cao <algea.cao@rock-chips.com>,
	 Dmitry Baryshkov <lumag@kernel.org>
Cc: kernel@collabora.com, linux-phy@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	"Thomas Niederprüm" <dubito@online.de>,
	"Simon Wright" <simon@symple.nz>
Subject: [PATCH v3 3/6] phy: rockchip: samsung-hdptx: Drop TMDS rate setup workaround
Date: Thu, 11 Jun 2026 15:31:05 +0300	[thread overview]
Message-ID: <20260611-hdptx-clk-fixes-v3-3-67b1b0c00e16@collabora.com> (raw)
In-Reply-To: <20260611-hdptx-clk-fixes-v3-0-67b1b0c00e16@collabora.com>

Since commit ba9c2fe18c17 ("drm/rockchip: dw_hdmi_qp: Switch to
phy_configure()") the TMDS rate setup doesn't rely anymore on the
unconventional usage of the bus width, instead it is managed exclusively
through the HDMI PHY configuration API.

Drop the now obsolete workaround to retrieve the TMDS character rate via
phy_get_bus_width() during power_on().

While at it, get rid of the extra call to rk_hdptx_phy_consumer_put() by
moving the statement at the end of the function.

Tested-by: Thomas Niederprüm <dubito@online.de>
Tested-by: Simon Wright <simon@symple.nz>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
 drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 27 +++++------------------
 1 file changed, 6 insertions(+), 21 deletions(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
index 5295d5f6f287..92c77e58518c 100644
--- a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
+++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
@@ -1660,22 +1660,6 @@ static int rk_hdptx_phy_power_on(struct phy *phy)
 	enum phy_mode mode = phy_get_mode(phy);
 	int ret, lane;
 
-	if (mode != PHY_MODE_DP) {
-		if (!hdptx->hdmi_cfg.rate && hdptx->hdmi_cfg.mode != PHY_HDMI_MODE_FRL) {
-			/*
-			 * FIXME: Temporary workaround to setup TMDS char rate
-			 * from the RK DW HDMI QP bridge driver.
-			 * Will be removed as soon the switch to the HDMI PHY
-			 * configuration API has been completed on both ends.
-			 */
-			hdptx->hdmi_cfg.rate = phy_get_bus_width(hdptx->phy) & 0xfffffff;
-			hdptx->hdmi_cfg.rate *= 100;
-		}
-
-		dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,
-			hdptx->hdmi_cfg.rate, hdptx->hdmi_cfg.bpc);
-	}
-
 	ret = rk_hdptx_phy_consumer_get(hdptx);
 	if (ret)
 		return ret;
@@ -1701,9 +1685,10 @@ static int rk_hdptx_phy_power_on(struct phy *phy)
 		rk_hdptx_dp_pll_init(hdptx);
 
 		ret = rk_hdptx_dp_aux_init(hdptx);
-		if (ret)
-			rk_hdptx_phy_consumer_put(hdptx, true);
 	} else {
+		dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,
+			hdptx->hdmi_cfg.rate, hdptx->hdmi_cfg.bpc);
+
 		if (hdptx->pll_config_dirty)
 			ret = rk_hdptx_pll_cmn_config(hdptx);
 
@@ -1716,11 +1701,11 @@ static int rk_hdptx_phy_power_on(struct phy *phy)
 			else
 				ret = rk_hdptx_tmds_ropll_mode_config(hdptx);
 		}
-
-		if (ret)
-			rk_hdptx_phy_consumer_put(hdptx, true);
 	}
 
+	if (ret)
+		rk_hdptx_phy_consumer_put(hdptx, true);
+
 	return ret;
 }
 

-- 
2.54.0


  parent reply	other threads:[~2026-06-11 12:31 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-11 12:31 [PATCH v3 0/6] phy: rockchip: samsung-hdptx: Clock fixes and API transition cleanups Cristian Ciocaltea
2026-06-11 12:31 ` [PATCH v3 1/6] phy: rockchip: samsung-hdptx: Fix rate recalculation for high bpc Cristian Ciocaltea
2026-06-11 12:31 ` [PATCH v3 2/6] phy: rockchip: samsung-hdptx: Handle uncommitted PHY config changes Cristian Ciocaltea
2026-06-11 12:31 ` Cristian Ciocaltea [this message]
2026-06-11 12:31 ` [PATCH v3 4/6] phy: rockchip: samsung-hdptx: Drop restrict_rate_change handling Cristian Ciocaltea
2026-06-11 12:31 ` [PATCH v3 5/6] phy: rockchip: samsung-hdptx: Simplify GRF access with FIELD_PREP_WM16() Cristian Ciocaltea
2026-06-11 12:31 ` [PATCH v3 6/6] phy: rockchip: samsung-hdptx: Consistently use bitfield macros Cristian Ciocaltea
2026-06-11 23:58 ` [PATCH v3 0/6] phy: rockchip: samsung-hdptx: Clock fixes and API transition cleanups Cristian Ciocaltea

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