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-rw-r--r--sys/dev/pci/drm/drm_fb_helper.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/drm_fb_helper.c b/sys/dev/pci/drm/drm_fb_helper.c
index d95b8acbebd..ec838933054 100644
--- a/sys/dev/pci/drm/drm_fb_helper.c
+++ b/sys/dev/pci/drm/drm_fb_helper.c
@@ -1742,7 +1742,7 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
* 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->format->cpp[0] * 8 ||
+ if (var->bits_per_pixel > fb->format->cpp[0] * 8 ||
var->xres > fb->width || var->yres > fb->height ||
var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
DRM_DEBUG("fb requested width/height/bpp can't fit in current fb "
@@ -1768,6 +1768,11 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
}
/*
+ * Likewise, bits_per_pixel should be rounded up to a supported value.
+ */
+ var->bits_per_pixel = fb->format->cpp[0] * 8;
+
+ /*
* drm fbdev emulation doesn't support changing the pixel format at all,
* so reject all pixel format changing requests.
*/