Kernel bump from 4.1.3-rt to 4.1.7-rt.

[kvmfornfv.git] / kernel / drivers / gpu / drm / radeon / radeon_combios.c

diff --git a/kernel/drivers/gpu/drm/radeon/radeon_combios.c b/kernel/drivers/gpu/drm/radeon/radeon_combios.c
index 3e5f6b7..c097d3a 100644 (file)
--- a/kernel/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/kernel/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1255,10 +1255,15 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
 
                        if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
                            (RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) {
+                               u32 hss = (RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
+
+                               if (hss > lvds->native_mode.hdisplay)
+                                       hss = (10 - 1) * 8;
+
                                lvds->native_mode.htotal = lvds->native_mode.hdisplay +
                                        (RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8;
                                lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
-                                       (RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
+                                       hss;
                                lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
                                        (RBIOS8(tmp + 23) * 8);