From 85234cdc28f622dc94d8bb0089635113e2aa5609 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 2 Jul 2012 13:27:29 +0200 Subject: [PATCH] drm/i915/hdmi: implement get_hw_state Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ddi.c | 29 +++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_drv.h | 2 ++ drivers/gpu/drm/i915/intel_hdmi.c | 24 ++++++++++++++++++++++++ 3 files changed, 55 insertions(+) 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; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index c39c70554891..4daa7e65b04a 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -542,6 +542,8 @@ extern void ironlake_teardown_rc6(struct drm_device *dev); extern void intel_enable_ddi(struct intel_encoder *encoder); extern void intel_disable_ddi(struct intel_encoder *encoder); +extern bool intel_ddi_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe); extern void intel_ddi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index c9535cee1a73..e7d5078e6da7 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -601,6 +601,27 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder, intel_hdmi->set_infoframes(encoder, adjusted_mode); } +static bool intel_hdmi_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; + + tmp = I915_READ(intel_hdmi->sdvox_reg); + + if (!(tmp & SDVO_ENABLE)) + return false; + + if (HAS_PCH_CPT(dev)) + *pipe = PORT_TO_PIPE_CPT(tmp); + else + *pipe = PORT_TO_PIPE(tmp); + + return true; +} + static void intel_enable_hdmi(struct intel_encoder *encoder) { struct drm_device *dev = encoder->base.dev; @@ -998,14 +1019,17 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg, enum port port) if (IS_HASWELL(dev)) { intel_encoder->enable = intel_enable_ddi; intel_encoder->disable = intel_disable_ddi; + intel_encoder->get_hw_state = intel_ddi_get_hw_state; drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs_hsw); } else { intel_encoder->enable = intel_enable_hdmi; intel_encoder->disable = intel_disable_hdmi; + intel_encoder->get_hw_state = intel_hdmi_get_hw_state; drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs); } + intel_connector->get_hw_state = intel_connector_get_hw_state; intel_hdmi_add_properties(intel_hdmi, connector); -- 2.20.1