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drm/armada: fix YUV planar format framebuffer offsets

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We weren't correctly calculating the YUV planar offsets for subsampled
chroma planes correctly - fix up the coordinates for planes 1 and 2.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2017-12-08 12:16:22 +00:00
parent d6a48965db
commit de0ea9ad2f
1 changed files with 7 additions and 1 deletions

8
drivers/gpu/drm/armada/armada_crtc.c
View file

@ -176,7 +176,13 @@ void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
if (num_planes > 3)
num_planes = 3;
for (i = 0; i < num_planes; i++)
addrs[0] = addr + fb->offsets[0] + y * fb->pitches[0] +
x * format->cpp[0];
y /= format->vsub;
x /= format->hsub;
for (i = 1; i < num_planes; i++)
addrs[i] = addr + fb->offsets[i] + y * fb->pitches[i] +
x * format->cpp[i];
for (; i < 3; i++)