drm/i915: VLV VGA port only handles on & off, like PCH VGA

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 71b412a6fbd54c8ea0324b3e5b7116e2534c2f57..61d55d3141c7bbb9e0ecf00a085872e54fcfbc88 100644 (file)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -88,6 +88,9 @@ static void gmch_crt_dpms(struct drm_encoder *encoder, int mode)
        temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
        temp &= ~ADPA_DAC_ENABLE;
 
+       if (IS_VALLEYVIEW(dev) && mode != DRM_MODE_DPMS_ON)
+               mode = DRM_MODE_DPMS_OFF;
+
        switch (mode) {
        case DRM_MODE_DPMS_ON:
                temp |= ADPA_DAC_ENABLE;