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| author | David S. Miller <davem@davemloft.net> | 2011-10-24 18:18:09 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-24 18:18:09 -0400 |
| commit | 1805b2f04855f07afe3a71d620a68f483b0ed74f (patch) | |
| tree | b823b90f37f5404fcaef70f785c70112ca74a329 /drivers/gpu/drm/radeon/atombios_dp.c | |
| parent | 78d81d15b74246c7cedf84894434890b33da3907 (diff) | |
| parent | f42af6c486aa5ca6ee62800cb45c5b252020509d (diff) | |
| download | linux-rt-1805b2f04855f07afe3a71d620a68f483b0ed74f.tar.gz | |
Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 4da23889fea6..79e8ebc05307 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -129,7 +129,9 @@ static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, for (retry = 0; retry < 4; retry++) { ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, msg, msg_bytes, NULL, 0, delay, &ack); - if (ret < 0) + if (ret == -EBUSY) + continue; + else if (ret < 0) return ret; if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) return send_bytes; @@ -160,7 +162,9 @@ static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, for (retry = 0; retry < 4; retry++) { ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, msg, msg_bytes, recv, recv_bytes, delay, &ack); - if (ret < 0) + if (ret == -EBUSY) + continue; + else if (ret < 0) return ret; if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) return ret; @@ -236,7 +240,9 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, for (retry = 0; retry < 4; retry++) { ret = radeon_process_aux_ch(auxch, msg, msg_bytes, reply, reply_bytes, 0, &ack); - if (ret < 0) { + if (ret == -EBUSY) + continue; + else if (ret < 0) { DRM_DEBUG_KMS("aux_ch failed %d\n", ret); return ret; } |