From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 48 ++++++++++++++++++++++++-----------------
1 file changed, 28 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 81f959d..a24c8cc7 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -807,17 +807,19 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
uint32_t status;
int try, clock = 0;
bool has_aux_irq = HAS_AUX_IRQ(dev);
- bool vdd;
+ bool vdd = false;
- pps_lock(intel_dp);
+ if (is_edp(intel_dp)) {
+ pps_lock(intel_dp);
- /*
- * We will be called with VDD already enabled for dpcd/edid/oui reads.
- * In such cases we want to leave VDD enabled and it's up to upper
layers
- * to turn it off. But for eg. i2c-dev access we need to turn it on/off
- * ourselves.
- */
- vdd = edp_panel_vdd_on(intel_dp);
+ /*
+ * We will be called with VDD already enabled for dpcd/edid/oui
reads.
+ * In such cases we want to leave VDD enabled and it's up to
upper layers
+ * to turn it off. But for eg. i2c-dev access we need to turn
it on/off
+ * ourselves.
+ */
+ vdd = edp_panel_vdd_on(intel_dp);
+ }
/* dp aux is extremely sensitive to irq latency, hence request the
* lowest possible wakeup latency and so prevent the cpu from going into
@@ -924,10 +926,12 @@ out:
pm_qos_update_request(&dev_priv->pm_qos, PM_QOS_DEFAULT_VALUE);
intel_aux_display_runtime_put(dev_priv);
- if (vdd)
- edp_panel_vdd_off(intel_dp, false);
+ if (is_edp(intel_dp)) {
+ if (vdd)
+ edp_panel_vdd_off(intel_dp, false);
- pps_unlock(intel_dp);
+ pps_unlock(intel_dp);
+ }
return ret;
}
@@ -2291,18 +2295,22 @@ static void intel_enable_dp(struct intel_encoder
*encoder)
if (WARN_ON(dp_reg & DP_PORT_EN))
return;
- pps_lock(intel_dp);
+ if (is_edp(intel_dp)) {
+ pps_lock(intel_dp);
- if (IS_VALLEYVIEW(dev))
- vlv_init_panel_power_sequencer(intel_dp);
+ if (IS_VALLEYVIEW(dev))
+ vlv_init_panel_power_sequencer(intel_dp);
- intel_dp_enable_port(intel_dp);
+ intel_dp_enable_port(intel_dp);
- edp_panel_vdd_on(intel_dp);
- edp_panel_on(intel_dp);
- edp_panel_vdd_off(intel_dp, true);
+ edp_panel_vdd_on(intel_dp);
+ edp_panel_on(intel_dp);
+ edp_panel_vdd_off(intel_dp, true);
- pps_unlock(intel_dp);
+ pps_unlock(intel_dp);
+ } else {
+ intel_dp_enable_port(intel_dp);
+ }
if (IS_VALLEYVIEW(dev))
vlv_wait_port_ready(dev_priv, dp_to_dig_port(intel_dp));
--
1.8.4.5
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