[Intel-gfx] [PATCH] drm/i915: hpd_init needs to be audited for runtime pm

[Daniel Vetter]

Looks like work for Imre or someone else from the runtime pm gang.

Cc: Imre Deak <imre.deak at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_irq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 4ef642348450..4dbdd3b23758 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -4423,6 +4423,10 @@ void intel_hpd_init(struct drm_device *dev)
 	unsigned long irqflags;
 	int i;
 
+	/*
+	 * AUDIT-ME: This looks unsafe now that we run hpd_init at interesting
+	 * times due to runtime pm. Same for the connector->polled access below.
+	 */
 	for (i = 1; i < HPD_NUM_PINS; i++) {
 		dev_priv->hpd_stats[i].hpd_cnt = 0;
 		dev_priv->hpd_stats[i].hpd_mark = HPD_ENABLED;
-- 
1.9.2