Checking for the number of planes is not sufficient to en ensure that
the format is a packed YUV422.
Use explicit fourcc helpers for the check instead.
Signed-off-by: Paul Kocialkowski <paul.kocialkow...@bootlin.com>
Acked-by: Maxime Ripard <maxime.rip...@bootlin.com>
---
drivers/gpu/drm/sun4i/sun4i_backend.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c
b/drivers/gpu/drm/sun4i/sun4i_backend.c
index 9e9255ee59cd..bbadc2ab9f4d 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -245,7 +245,8 @@ static int sun4i_backend_update_yuv_format(struct
sun4i_backend *backend,
SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN);
/* TODO: Add support for the multi-planar YUV formats */
- if (format->num_planes == 1)
+ if (drm_format_info_is_yuv_packed(format) &&
+ drm_format_info_is_yuv_sampling_422(format))
val |= SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422;
else
DRM_DEBUG_DRIVER("Unsupported YUV format (0x%x)\n", fmt);
--
2.19.2
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