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drm/i915: set the right gen3 flip_done mode also at resume 

Currently we've only frobbed this bit at irq_init time, but did
not restore it at resume time. Move it to the gen3 clock gating
function to fix this.

Notice while reading through code.

Cc: stable@vger.kernel.org (for 3.5 only)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-09-09 11:54:16 +02:00
parent 99d0b1db6c
commit 974a3b0f9f
2 changed files with 3 additions and 3 deletions
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3
drivers/gpu/drm/i915/i915_irq.c
View File

@ -2700,9 +2700,6 @@ void intel_irq_init(struct drm_device *dev)
dev->driver->irq_handler = i8xx_irq_handler;
dev->driver->irq_uninstall = i8xx_irq_uninstall;
} else if (INTEL_INFO(dev)->gen == 3) {
/* IIR "flip pending" means done if this bit is set */
I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
dev->driver->irq_preinstall = i915_irq_preinstall;
dev->driver->irq_postinstall = i915_irq_postinstall;
dev->driver->irq_uninstall = i915_irq_uninstall;

3
drivers/gpu/drm/i915/intel_pm.c
View File

@ -3672,6 +3672,9 @@ static void gen3_init_clock_gating(struct drm_device *dev)
if (IS_PINEVIEW(dev))
I915_WRITE(ECOSKPD, _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY));
/* IIR "flip pending" means done if this bit is set */
I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
}
static void i85x_init_clock_gating(struct drm_device *dev)