Adding code to enable DRRS during ddi enable and disable DRRS during ddi disable
Signed-off-by: Vandana Kannan <vandana.kan...@intel.com>
---
drivers/gpu/drm/i915/intel_ddi.c | 2 ++
drivers/gpu/drm/i915/intel_dp.c | 48 ++++++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_drv.h | 3 +++
3 files changed, 53 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index b63d4fa..930f38e 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1185,6 +1185,7 @@ static void intel_enable_ddi(struct intel_encoder
*intel_encoder)
intel_edp_backlight_on(intel_dp);
intel_edp_psr_enable(intel_dp);
+ intel_edp_drrs_enable(intel_dp);
}
if (intel_crtc->config.has_audio) {
@@ -1219,6 +1220,7 @@ static void intel_disable_ddi(struct intel_encoder
*intel_encoder)
if (type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ intel_edp_drrs_disable(intel_dp);
intel_edp_psr_disable(intel_dp);
intel_edp_backlight_off(intel_dp);
}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1ceec86..d50249e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4873,6 +4873,54 @@ static void intel_dp_set_drrs_state(struct drm_device
*dev, int refresh_rate)
DRM_DEBUG_KMS("eDP Refresh Rate set to : %dHz\n", refresh_rate);
}
+void intel_edp_drrs_enable(struct intel_dp *intel_dp)
+{
+ struct drm_device *dev = intel_dp_to_dev(intel_dp);
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct drm_crtc *crtc = dig_port->base.base.crtc;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ if (!intel_crtc->config.has_drrs) {
+ DRM_DEBUG_KMS("Panel doesn't support DRRS\n");
+ return;
+ }
+
+ mutex_lock(&dev_priv->drrs.mutex);
+ if (dev_priv->drrs.dp) {
+ DRM_DEBUG_KMS("DRRS already enabled\n");
+ mutex_unlock(&dev_priv->drrs.mutex);
+ return;
+ }
+
+ dev_priv->drrs.busy_frontbuffer_bits = 0;
+
+ dev_priv->drrs.dp = intel_dp;
+ mutex_unlock(&dev_priv->drrs.mutex);
+}
+
+void intel_edp_drrs_disable(struct intel_dp *intel_dp)
+{
+ struct drm_device *dev = intel_dp_to_dev(intel_dp);
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ mutex_lock(&dev_priv->drrs.mutex);
+ if (!dev_priv->drrs.dp) {
+ mutex_unlock(&dev_priv->drrs.mutex);
+ return;
+ }
+
+ if (dev_priv->drrs.refresh_rate_type == DRRS_LOW_RR)
+ intel_dp_set_drrs_state(dev_priv->dev,
+ intel_dp->attached_connector->panel.
+ fixed_mode->vrefresh);
+
+ dev_priv->drrs.dp = NULL;
+ mutex_unlock(&dev_priv->drrs.mutex);
+
+ cancel_delayed_work_sync(&dev_priv->drrs.work);
+}
+
static void intel_edp_drrs_work(struct work_struct *work)
{
struct drm_i915_private *dev_priv =
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5b613e0..a728cc8 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -927,6 +927,9 @@ void intel_edp_psr_flush(struct drm_device *dev,
unsigned frontbuffer_bits);
void intel_edp_psr_init(struct drm_device *dev);
+void intel_edp_drrs_enable(struct intel_dp *intel_dp);
+void intel_edp_drrs_disable(struct intel_dp *intel_dp);
+
int intel_dp_handle_hpd_irq(struct intel_digital_port *digport, bool long_hpd);
void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector
*connector);
void intel_dp_mst_suspend(struct drm_device *dev);
--
2.0.1
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