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Commit cc3da175 authored by Damien Lespiau's avatar Damien Lespiau Committed by Daniel Vetter
Browse files

drm/i915: Make switching to the same CRC source a no-op 



Signed-off-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ac2300d4

drivers/gpu/drm/i915/i915_debugfs.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -1804,6 +1804,7 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, 
			       enum intel_pipe_crc_source source)

			       enum intel_pipe_crc_source source)

{

{

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];

	u32 val;

	u32 val;
@@ -1812,7 +1813,10 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, 
	if (!IS_IVYBRIDGE(dev))

	if (!IS_IVYBRIDGE(dev))

		return -ENODEV;

		return -ENODEV;





	dev_priv->pipe_crc[pipe].source = source;

	if (pipe_crc->source == source)

		return 0;



	pipe_crc->source = source;





	switch (source) {

	switch (source) {

	case INTEL_PIPE_CRC_SOURCE_PLANE1:

	case INTEL_PIPE_CRC_SOURCE_PLANE1: