Setting the fbc does hardware access so it needs to have
pm ref.
Signed-off-by: Mika Kuoppala <[email protected]>
---
drivers/gpu/drm/i915/i915_debugfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index d0e9f2d..0e568de 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1678,6 +1678,7 @@ static int i915_fbc_fc_set(void *data, u64 val)
return -ENODEV;
mutex_lock(&dev_priv->fbc.lock);
+ intel_runtime_pm_get(dev_priv);
reg = I915_READ(ILK_DPFC_CONTROL);
dev_priv->fbc.false_color = val;
@@ -1686,7 +1687,9 @@ static int i915_fbc_fc_set(void *data, u64 val)
(reg | FBC_CTL_FALSE_COLOR) :
(reg & ~FBC_CTL_FALSE_COLOR));
+ intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev_priv->fbc.lock);
+
return 0;
}
--
2.5.0
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