[PATCH v2 02/25] drm/i915: vlv: clear master interrupt flag when disabling interrupts

Imre Deak
2014-04-14T17:24:53Z

Not clearing this flag causes spurious interrupts at least in D3 state,
so before enabling RPM we need to fix this. We were already setting this
flag when enabling interrupts, only clearing it was missing.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 7a4d3ae..a651d0d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3305,6 +3305,8 @@ static void valleyview_irq_uninstall(struct drm_device *dev)
if (!dev_priv)
return;

+ I915_WRITE(VLV_MASTER_IER, 0);
+
intel_hpd_irq_uninstall(dev_priv);

for_each_pipe(pipe)
--
1.8.4