Commit bda0381e authored by Rodrigo Vivi's avatar Rodrigo Vivi Committed by Daniel Vetter

drm/i915: Use EIO instead of EAGAIN for sink CRC error.

If something while getting panel CRC this means that probably hw I/O error
so hw is busted and try again shouldn't help much.
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 40bae736
...@@ -3800,21 +3800,21 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc) ...@@ -3800,21 +3800,21 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc)
u8 buf[1]; u8 buf[1];
if (drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_SINK_MISC, buf) < 0) if (drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_SINK_MISC, buf) < 0)
return -EAGAIN; return -EIO;
if (!(buf[0] & DP_TEST_CRC_SUPPORTED)) if (!(buf[0] & DP_TEST_CRC_SUPPORTED))
return -ENOTTY; return -ENOTTY;
if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK, if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK,
DP_TEST_SINK_START) < 0) DP_TEST_SINK_START) < 0)
return -EAGAIN; return -EIO;
/* Wait 2 vblanks to be sure we will have the correct CRC value */ /* Wait 2 vblanks to be sure we will have the correct CRC value */
intel_wait_for_vblank(dev, intel_crtc->pipe); intel_wait_for_vblank(dev, intel_crtc->pipe);
intel_wait_for_vblank(dev, intel_crtc->pipe); intel_wait_for_vblank(dev, intel_crtc->pipe);
if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) < 0) if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) < 0)
return -EAGAIN; return -EIO;
drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK, 0); drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK, 0);
return 0; return 0;
......
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