From: Tomi Valkeinen Date: Tue, 19 Apr 2016 06:06:32 +0000 (+0300) Subject: drm/omap: fix pitch round-up X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ce481edad41098b535c15661e2e47a0934a24a7a;p=linux-beck.git 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 Acked-by: Laurent Pinchart --- diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c index 372673712843..31dfa0893416 100644 --- a/drivers/gpu/drm/omapdrm/omap_fbdev.c +++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c @@ -125,8 +125,8 @@ static int omap_fbdev_create(struct drm_fb_helper *helper, 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) { diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c index ea94aadb279d..ec996c752160 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem.c +++ b/drivers/gpu/drm/omapdrm/omap_gem.c @@ -661,7 +661,7 @@ int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, { union omap_gem_size gsize; - args->pitch = args->width * DIV_ROUND_UP(args->bpp, 8); + args->pitch = DIV_ROUND_UP(args->width * args->bpp, 8); args->size = PAGE_ALIGN(args->pitch * args->height);