1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 2d7ce9d3143f..d73703a695e8 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1690,9 +1690,14 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
         struct drm_fb_helper *fb_helper = info->par;
         struct drm_framebuffer *fb = fb_helper->fb;
 
-        if (var->pixclock != 0 || in_dbg_master())
+        if (in_dbg_master())
                 return -EINVAL;
 
+        if (var->pixclock != 0) {
+                DRM_DEBUG("fbdev emulation doesn't support changing the pixel clock, value of pixclock is ignored\n");
+                var->pixclock = 0;
+        }
+
         if ((drm_format_info_block_width(fb->format, 0) > 1) ||
             (drm_format_info_block_height(fb->format, 0) > 1))
                 return -EINVAL;