diff options
| author | Rodrigo Vivi <rodrigo.vivi@gmail.com> | 2014-09-16 01:24:03 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-19 14:41:20 +0200 |
| commit | bda0381e72028708b37695bf7d5b18ec956cf0a2 (patch) | |
| tree | 733b0a965da30b7a829f66399635a79674b60c9a /drivers/gpu | |
| parent | drm/i915: Extend BIOS stolen mem handling to all platform (diff) | |
| download | linux-bda0381e72028708b37695bf7d5b18ec956cf0a2.tar.xz linux-bda0381e72028708b37695bf7d5b18ec956cf0a2.zip | |
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: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 72bf533596c8..59754451ae50 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3800,21 +3800,21 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc) u8 buf[1]; 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)) return -ENOTTY; if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_SINK, DP_TEST_SINK_START) < 0) - return -EAGAIN; + return -EIO; /* 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); 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); return 0; |