drm/radeon/kms: reorder display resume to avoid problems

[deliverable/linux.git] / drivers / gpu / drm / radeon / atombios_crtc.c

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index df2b6f2b35f893d00b475147f8d995a7b3c15bc2..9fbabaa6ee448bb665766a34dc944c694e69eaa3 100644 (file)
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -253,7 +253,8 @@ void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
        case DRM_MODE_DPMS_SUSPEND:
        case DRM_MODE_DPMS_OFF:
                drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id);
-               atombios_blank_crtc(crtc, ATOM_ENABLE);
+               if (radeon_crtc->enabled)
+                       atombios_blank_crtc(crtc, ATOM_ENABLE);
                if (ASIC_IS_DCE3(rdev))
                        atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
                atombios_enable_crtc(crtc, ATOM_DISABLE);
@@ -530,7 +531,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                                        dp_clock = dig_connector->dp_clock;
                                }
                        }
-
+#if 0 /* doesn't work properly on some laptops */
                        /* use recommended ref_div for ss */
                        if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
                                if (ss_enabled) {
@@ -540,7 +541,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                                        }
                                }
                        }
-
+#endif
                        if (ASIC_IS_AVIVO(rdev)) {
                                /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
                                if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)