In order to handle non byte aligned formats, use drm_format_plane_width_bytes(). Use of 'cpp' can result in incorrect number of bytes from bit level rounding. Signed-off-by: Hyun Kwon <hyun.kwon@xxxxxxxxxx> --- v2 - This patch is added. --- --- drivers/gpu/drm/drm_fb_cma_helper.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 186d00a..271175e 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -124,7 +124,8 @@ dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb, return 0; paddr = obj->paddr + fb->offsets[plane]; - paddr += fb->format->cpp[plane] * (state->src_x >> 16); + paddr += drm_format_plane_width_bytes(fb->format, plane, + state->src_x >> 16); paddr += fb->pitches[plane] * (state->src_y >> 16); return paddr; -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
