From: Thomas Zimmermann Date: Mon, 11 May 2026 11:54:31 +0000 (+0200) Subject: drm/exynos: fbdev: Remove offset into screen_buffer X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=760bbc58c2c833dec0ee38dd959f4f2f4084fc57;p=thirdparty%2Fkernel%2Flinux.git drm/exynos: fbdev: Remove offset into screen_buffer The screen_buffer field in struct fb_info contains the kernel address of the first byte of framebuffer memory. Do not add the display offset. This offset only describes scrolling during scanout. Signed-off-by: Thomas Zimmermann Fixes: 19c8b8343d9c ("drm/exynos: fixed overlay data updating.") Tested-by: Marek Szyprowski Acked-by: Marek Szyprowski Signed-off-by: Inki Dae Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: # v3.2+ --- diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 637927818dfe..d283ded266d5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -61,17 +61,13 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, struct fb_info *fbi = helper->info; struct drm_framebuffer *fb = helper->fb; unsigned int size = fb->width * fb->height * fb->format->cpp[0]; - unsigned long offset; fbi->fbops = &exynos_drm_fb_ops; drm_fb_helper_fill_info(fbi, helper, sizes); - offset = fbi->var.xoffset * fb->format->cpp[0]; - offset += fbi->var.yoffset * fb->pitches[0]; - fbi->flags |= FBINFO_VIRTFB; - fbi->screen_buffer = exynos_gem->kvaddr + offset; + fbi->screen_buffer = exynos_gem->kvaddr; fbi->screen_size = size; fbi->fix.smem_len = size;