diff options
| author | Daniel Vetter | 2012-07-02 13:27:29 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2012-09-06 07:58:22 +0200 |
| commit | 85234cdc28f622dc94d8bb0089635113e2aa5609 (patch) | |
| tree | 63540fb49e240f9219e5ded9e4d032910c235792 /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | 19d8fe154497bc48e25cbed61066731daca3df43 (diff) | |
drm/i915/hdmi: implement get_hw_state
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 38a7006a84f4..bfe375466a0e 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -757,6 +757,35 @@ void intel_ddi_mode_set(struct drm_encoder *encoder, intel_hdmi->set_infoframes(encoder, adjusted_mode); } +bool intel_ddi_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) +{ + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); + u32 tmp; + int i; + + tmp = I915_READ(DDI_BUF_CTL(intel_hdmi->ddi_port)); + + if (!(tmp & DDI_BUF_CTL_ENABLE)) + return false; + + for_each_pipe(i) { + tmp = I915_READ(DDI_FUNC_CTL(i)); + + if ((tmp & PIPE_DDI_PORT_MASK) + == PIPE_DDI_SELECT_PORT(intel_hdmi->ddi_port)) { + *pipe = i; + return true; + } + } + + DRM_DEBUG_KMS("No pipe for ddi port %i found\n", intel_hdmi->ddi_port); + + return true; +} + void intel_enable_ddi(struct intel_encoder *encoder) { struct drm_device *dev = encoder->base.dev; |