X-Git-Url: https://git.stricted.de/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fdrm_fb_helper.c;h=5683b7fdd7466a16a5d1c4df0477c734fed7b0d4;hb=ebe0f2442cc4c5493a85c875d2d8a44ffecc1175;hp=7740dd26f00706d3b2059f475d10399f8f66d068;hpb=623ff7739e7c00fa3d55dbfd42a492a68298fd7a;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 7740dd26f00..5683b7fdd74 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -136,6 +136,9 @@ static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
 {
 	uint16_t *r_base, *g_base, *b_base;
 
+	if (crtc->funcs->gamma_set == NULL)
+		return;
+
 	r_base = crtc->gamma_store;
 	g_base = r_base + crtc->gamma_size;
 	b_base = g_base + crtc->gamma_size;
@@ -383,7 +386,6 @@ int drm_fb_helper_init(struct drm_device *dev,
 		       int crtc_count, int max_conn_count)
 {
 	struct drm_crtc *crtc;
-	int ret = 0;
 	int i;
 
 	fb_helper->dev = dev;
@@ -408,10 +410,8 @@ int drm_fb_helper_init(struct drm_device *dev,
 				sizeof(struct drm_connector *),
 				GFP_KERNEL);
 
-		if (!fb_helper->crtc_info[i].mode_set.connectors) {
-			ret = -ENOMEM;
+		if (!fb_helper->crtc_info[i].mode_set.connectors)
 			goto out_free;
-		}
 		fb_helper->crtc_info[i].mode_set.num_connectors = 0;
 	}
 
@@ -559,9 +559,13 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
 		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) {
+	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 "
-			  "object %dx%d-%d > %dx%d-%d\n", var->xres, var->yres, var->bits_per_pixel,
+			  "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,
 			  fb->width, fb->height, fb->bits_per_pixel);
 		return -EINVAL;
 	}
@@ -1079,7 +1083,7 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
 
 	/* try and find a 1024x768 mode on each connector */
 	can_clone = true;
-	dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60);
+	dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false);
 
 	for (i = 0; i < fb_helper->connector_count; i++) {