linux-kernel - [PATCH v5 08/17] drm/bridge: analogix_dp: Move the color format check to .atomic

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250912085846.7349-9-damon.ding@rock-chips.com>
Date: Fri, 12 Sep 2025 16:58:37 +0800
From: Damon Ding <damon.ding@...k-chips.com>
To: andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org
Cc: Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	jingoohan1@...il.com,
	inki.dae@...sung.com,
	sw0312.kim@...sung.com,
	kyungmin.park@...sung.com,
	krzk@...nel.org,
	alim.akhtar@...sung.com,
	hjc@...k-chips.com,
	heiko@...ech.de,
	andy.yan@...k-chips.com,
	dmitry.baryshkov@....qualcomm.com,
	dianders@...omium.org,
	m.szyprowski@...sung.com,
	luca.ceresoli@...tlin.com,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Damon Ding <damon.ding@...k-chips.com>
Subject: [PATCH v5 08/17] drm/bridge: analogix_dp: Move the color format check to .atomic_check() for Rockchip platforms

For Rockchip platforms, the YUV color formats are currently unsupported.
This compatibility check was previously implemented in
&analogix_dp_plat_data.get_modes().

Moving color format check to &drm_connector_helper_funcs.atomic_check()
would get rid of &analogix_dp_plat_data.get_modes() and be more
reasonable than before.

Signed-off-by: Damon Ding <damon.ding@...k-chips.com>
---
 .../gpu/drm/bridge/analogix/analogix_dp_core.c | 11 +++++++++++
 .../gpu/drm/rockchip/analogix_dp-rockchip.c    | 18 ------------------
 2 files changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 02d6a5a1a836..5d15fdf88c92 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -894,8 +894,19 @@ static int analogix_dp_atomic_check(struct drm_connector *connector,
 				    struct drm_atomic_state *state)
 {
 	struct analogix_dp_device *dp = to_dp(connector);
+	struct drm_display_info *di = &connector->display_info;
 	struct drm_connector_state *conn_state;
 	struct drm_crtc_state *crtc_state;
+	u32 mask = DRM_COLOR_FORMAT_YCBCR444 | DRM_COLOR_FORMAT_YCBCR422;
+
+	if (is_rockchip(dp->plat_data->dev_type)) {
+		if ((di->color_formats & mask)) {
+			DRM_DEBUG_KMS("Swapping display color format from YUV to RGB\n");
+			di->color_formats &= ~mask;
+			di->color_formats |= DRM_COLOR_FORMAT_RGB444;
+			di->bpc = 8;
+		}
+	}
 
 	conn_state = drm_atomic_get_new_connector_state(state, connector);
 	if (WARN_ON(!conn_state))
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 94da0f745525..0a185ebd26af 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -165,23 +165,6 @@ static int rockchip_dp_powerdown(struct analogix_dp_plat_data *plat_data)
 	return 0;
 }
 
-static int rockchip_dp_get_modes(struct analogix_dp_plat_data *plat_data,
-				 struct drm_connector *connector)
-{
-	struct drm_display_info *di = &connector->display_info;
-	/* VOP couldn't output YUV video format for eDP rightly */
-	u32 mask = DRM_COLOR_FORMAT_YCBCR444 | DRM_COLOR_FORMAT_YCBCR422;
-
-	if ((di->color_formats & mask)) {
-		DRM_DEBUG_KMS("Swapping display color format from YUV to RGB\n");
-		di->color_formats &= ~mask;
-		di->color_formats |= DRM_COLOR_FORMAT_RGB444;
-		di->bpc = 8;
-	}
-
-	return 0;
-}
-
 static bool
 rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
 				   const struct drm_display_mode *mode,
@@ -480,7 +463,6 @@ static int rockchip_dp_probe(struct platform_device *pdev)
 	dp->plat_data.dev_type = dp->data->chip_type;
 	dp->plat_data.power_on = rockchip_dp_poweron;
 	dp->plat_data.power_off = rockchip_dp_powerdown;
-	dp->plat_data.get_modes = rockchip_dp_get_modes;
 
 	ret = rockchip_dp_of_probe(dp);
 	if (ret < 0)
-- 
2.34.1