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-rw-r--r--drivers/gpu/drm/drm_fb_helper.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 22d4f0e22101..8fffac8c5c75 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1209,11 +1209,14 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
if (var->pixclock != 0 || in_dbg_master())
return -EINVAL;
- /* Need to resize the fb object !!! */
- if (var->bits_per_pixel > fb->bits_per_pixel ||
- var->xres > fb->width || var->yres > fb->height ||
- var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
- DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb "
+ /*
+ * Changes struct fb_var_screeninfo are currently not pushed back
+ * to KMS, hence fail if different settings are requested.
+ */
+ if (var->bits_per_pixel != fb->bits_per_pixel ||
+ var->xres != fb->width || var->yres != fb->height ||
+ var->xres_virtual != fb->width || var->yres_virtual != fb->height) {
+ DRM_DEBUG("fb userspace requested width/height/bpp different than current fb "
"request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n",
var->xres, var->yres, var->bits_per_pixel,
var->xres_virtual, var->yres_virtual,