From: Paulo Zanoni <paulo.r.zanoni at intel.com>
We need to check if any of the pipes is using TRANSCODER_EDP.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a3228c1..8c3c131 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8552,6 +8552,31 @@ void intel_modeset_setup_hw_state(struct drm_device *dev)
struct intel_encoder *encoder;
struct intel_connector *connector;
+ if (IS_HASWELL(dev)) {
+ tmp = I915_READ(DDI_FUNC_CTL(TRANSCODER_EDP));
+
+ if (tmp & TRANS_DDI_FUNC_ENABLE) {
+ switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
+ case TRANS_DDI_EDP_INPUT_A_ON:
+ case TRANS_DDI_EDP_INPUT_A_ONOFF:
+ pipe = PIPE_A;
+ break;
+ case TRANS_DDI_EDP_INPUT_B_ONOFF:
+ pipe = PIPE_B;
+ break;
+ case TRANS_DDI_EDP_INPUT_C_ONOFF:
+ pipe = PIPE_C;
+ break;
+ }
+
+ crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+ crtc->cpu_transcoder = TRANSCODER_EDP;
+
+ DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n",
+ pipe_name(pipe));
+ }
+ }
+
for_each_pipe(pipe) {
crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
--
1.7.11.4
