Current EBUSY meaning is immediately retry, but this is
about to change. DRM aux transfer is about to change and
make EAGAIN the immediately retry and use EBUSY to wait
a bit for aux channels to recover for any error or wake up.
This has no functional change if the EAGAIN support is in
place already for drm aux transfer.
Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 2805f0d..1261d26 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -835,7 +835,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
last_status = status;
}
- ret = -EBUSY;
+ ret = -EAGAIN;
goto out;
}
@@ -890,7 +890,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
if ((status & DP_AUX_CH_CTL_DONE) == 0) {
DRM_ERROR("dp_aux_ch not done status 0x%08x\n", status);
- ret = -EBUSY;
+ ret = -EAGAIN;
goto out;
}
--
2.4.3
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