From: Russell King Date: Fri, 8 Dec 2017 12:16:22 +0000 (+0000) Subject: drm/armada: fix YUV planar format framebuffer offsets X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=de0ea9ad2f548dd9e555cac27cf7ade1db5b26ea;p=openwrt%2Fstaging%2Fblogic.git drm/armada: fix YUV planar format framebuffer offsets 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 --- diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 7f7b3e738679..a0f4d2a2a481 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -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++)