drm/omap: fix pitch round-up
At the moment we calculate the buffer's pitch with:
pitch = width * DIV_ROUND_UP(bpp, 8)
For CLUT modes with bpp of 1/2/4/8 this gives wrong result, and the
correct pitch is:
pitch = DIV_ROUND_UP(width * bpp, 8)
In practice this doesn't change anything, as we don't support CLUT
modes, but it's better to have the pitch calculation correct.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 3726737..31dfa08 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -125,8 +125,8 @@
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
- mode_cmd.pitches[0] = mode_cmd.width *
- DIV_ROUND_UP(sizes->surface_bpp, 8);
+ mode_cmd.pitches[0] =
+ DIV_ROUND_UP(mode_cmd.width * sizes->surface_bpp, 8);
fbdev->ywrap_enabled = priv->has_dmm && ywrap_enabled;
if (fbdev->ywrap_enabled) {