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...MODE_CREATE_DUMB. So, e.g., for 720 x 576: Stride for first plane: 720 * (32 / 3) / 8 = 960 bytes Stride for second plane: 720 / 2 * (64 / 3) / 8 = 960 bytes First plane: 720 / 3 = 240 pixel groups Second plane: 720 / 2 / 3 = 120 pixel groups So I allocated the two planes with: 240 x 576 with 32 bitspp 120 x 288 with 64 bitspp This worked, and if I look at the DRM_IOCTL_MODE_CREATE_DUMB in the docs, I can't right away see anything there that says my tactic was not allowed. The above doesn't work anymore with this patch, as the code calls drm_driver_color_mode_format(), which fails fo...

...> > Stride for first plane: 720 * (32 / 3) / 8 = 960 bytes > Stride for second plane: 720 / 2 * (64 / 3) / 8 = 960 bytes > > First plane: 720 / 3 = 240 pixel groups > Second plane: 720 / 2 / 3 = 120 pixel groups > > So I allocated the two planes with: > 240 x 576 with 32 bitspp > 120 x 288 with 64 bitspp > > This worked, and if I look at the DRM_IOCTL_MODE_CREATE_DUMB in the > docs, I can't right away see anything there that says my tactic was > not allowed. > > The above doesn't work anymore with this patch, as the code calls > drm_driv...

Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and buffer size. Align the pitch according to hardware requirements. Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com> Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com> --- drivers/gpu/drm/xlnx/zynqmp_kms.c | 7 +++++-- 1 file changed, 5

...plane: 720 * (32 / 3) / 8 = 960 bytes >> Stride for second plane: 720 / 2 * (64 / 3) / 8 = 960 bytes >> >> First plane: 720 / 3 = 240 pixel groups >> Second plane: 720 / 2 / 3 = 120 pixel groups >> >> So I allocated the two planes with: >> 240 x 576 with 32 bitspp >> 120 x 288 with 64 bitspp >> >> This worked, and if I look at the DRM_IOCTL_MODE_CREATE_DUMB in the >> docs, I can't right away see anything there that says my tactic was >> not allowed. >> >> The above doesn't work anymore with this patch, as t...