linux-kernel - [PATCH] drm/vkms: Add YUV410, YUV411, YVU410, and YVU411 support

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Message-ID: <tencent_8D922FAC8459EF1AC3A4503196336AEB6006@qq.com>
Date: Sun,  1 Feb 2026 22:02:09 +0800
From: Renjun Wang <renjunw0@...mail.com>
To: louis.chauvet@...tlin.com,
	hamohammed.sa@...il.com,
	simona@...ll.ch,
	melissa.srw@...il.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Renjun Wang <renjunw0@...mail.com>
Subject: [PATCH] drm/vkms: Add YUV410, YUV411, YVU410, and YVU411 support

Add support for the following planar YUV formats:
- DRM_FORMAT_YUV410
- DRM_FORMAT_YUV411
- DRM_FORMAT_YVU410
- DRM_FORMAT_YVU411

These formats are handled by the existing planar_yuv_read_line()
function, which correctly handles the subsampling defined in each
format's drm_format_info.

The YVU variants (YVU410, YVU411) are also added to
get_conversion_matrix_to_argb_u16() to ensure the U and V columns
are swapped correctly in the conversion matrix.

Signed-off-by: Renjun Wang <renjunw0@...mail.com>
---
 drivers/gpu/drm/vkms/vkms_formats.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index dfb8e13cba87..5ef5d49a44ef 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -730,9 +730,13 @@ pixel_read_line_t get_pixel_read_line_function(u32 format)
 	case DRM_FORMAT_P012:
 	case DRM_FORMAT_P016:
 		return &YUV161616_semiplanar_read_line;
+	case DRM_FORMAT_YUV410:
+	case DRM_FORMAT_YUV411:
 	case DRM_FORMAT_YUV420:
 	case DRM_FORMAT_YUV422:
 	case DRM_FORMAT_YUV444:
+	case DRM_FORMAT_YVU410:
+	case DRM_FORMAT_YVU411:
 	case DRM_FORMAT_YVU420:
 	case DRM_FORMAT_YVU422:
 	case DRM_FORMAT_YVU444:
@@ -921,6 +925,8 @@ void get_conversion_matrix_to_argb_u16(u32 format,
 	memcpy(matrix, matrix_to_copy, sizeof(*matrix_to_copy));
 
 	switch (format) {
+	case DRM_FORMAT_YVU410:
+	case DRM_FORMAT_YVU411:
 	case DRM_FORMAT_YVU420:
 	case DRM_FORMAT_YVU422:
 	case DRM_FORMAT_YVU444:
-- 
2.47.3