linux-kernel - [PATCH] drm/bridge: dw-hdmi: Sync comments with actual bus formats order

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Message-Id: <20241130-dw-hdmi-bus-fmt-order-v1-1-510b5fb6b990@collabora.com>
Date: Sat, 30 Nov 2024 01:04:53 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH] drm/bridge: dw-hdmi: Sync comments with actual bus formats
 order

Commit d3d6b1bf85ae ("drm: bridge: dw_hdmi: fix preference of RGB modes
over YUV420") changed the order of the output bus formats, but missed to
update accordingly the affected comment blocks related to
dw_hdmi_bridge_atomic_get_output_bus_fmts().

Fix the misleading comments and a context related typo.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 996733ed2c004c83a989cb8da54d8b630d9f2c02..d76aede757175d7ad5873c5d7623abf2d12da73c 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2621,6 +2621,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
  * - MEDIA_BUS_FMT_UYYVYY12_0_5X36,
  * - MEDIA_BUS_FMT_UYYVYY10_0_5X30,
  * - MEDIA_BUS_FMT_UYYVYY8_0_5X24,
+ * - MEDIA_BUS_FMT_RGB888_1X24,
  * - MEDIA_BUS_FMT_YUV16_1X48,
  * - MEDIA_BUS_FMT_RGB161616_1X48,
  * - MEDIA_BUS_FMT_UYVY12_1X24,
@@ -2631,7 +2632,6 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
  * - MEDIA_BUS_FMT_RGB101010_1X30,
  * - MEDIA_BUS_FMT_UYVY8_1X16,
  * - MEDIA_BUS_FMT_YUV8_1X24,
- * - MEDIA_BUS_FMT_RGB888_1X24,
  */
 
 /* Can return a maximum of 11 possible output formats for a mode/connector */
@@ -2669,7 +2669,7 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
 	}
 
 	/*
-	 * If the current mode enforces 4:2:0, force the output but format
+	 * If the current mode enforces 4:2:0, force the output bus format
 	 * to 4:2:0 and do not add the YUV422/444/RGB formats
 	 */
 	if (conn->ycbcr_420_allowed &&
@@ -2698,14 +2698,14 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
 		}
 	}
 
+	/* Default 8bit RGB fallback */
+	output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+
 	/*
 	 * Order bus formats from 16bit to 8bit and from YUV422 to RGB
-	 * if supported. In any case the default RGB888 format is added
+	 * if supported.
 	 */
 
-	/* Default 8bit RGB fallback */
-	output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
-
 	if (max_bpc >= 16 && info->bpc == 16) {
 		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR444)
 			output_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;

---
base-commit: f486c8aa16b8172f63bddc70116a0c897a7f3f02
change-id: 20241130-dw-hdmi-bus-fmt-order-7f6db5db2f0a