drm/i915/cnl: Fix comment about AUX IO power well enable/disable
The comments match an earlier version of the patch, fix them to match
the current state.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1498750622-14023-6-git-send-email-imre.deak@intel.com
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 2fe715b..5eb9c5e 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2845,7 +2845,10 @@ static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume
val |= CL_POWER_DOWN_ENABLE;
I915_WRITE(CNL_PORT_CL1CM_DW5, val);
- /* 4. Enable Power Well 1 (PG1) and Aux IO Power */
+ /*
+ * 4. Enable Power Well 1 (PG1).
+ * The AUX IO power wells will be enabled on demand.
+ */
mutex_lock(&power_domains->lock);
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
intel_power_well_enable(dev_priv, well);
@@ -2877,7 +2880,11 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv)
/* 3. Disable CD clock */
cnl_uninit_cdclk(dev_priv);
- /* 4. Disable Power Well 1 (PG1) and Aux IO Power */
+ /*
+ * 4. Disable Power Well 1 (PG1).
+ * The AUX IO power wells are toggled on demand, so they are already
+ * disabled at this point.
+ */
mutex_lock(&power_domains->lock);
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
intel_power_well_disable(dev_priv, well);