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drm/radeon/dp: bump i2c-over-aux retries to 7

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As per the DP1.2 spec.  Noticed while reviewing
Thierry's drm/dp patches. Also bump native aux
retries to 7 for consistency.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-01-14 10:29:59 -05:00
parent d8e2452509
commit 2138681bdd
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/radeon/atombios_dp.c
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@ -161,7 +161,7 @@ static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector,
msg[3] = (msg_bytes << 4) | (send_bytes - 1);
memcpy(&msg[4], send, send_bytes);
for (retry = 0; retry < 4; retry++) {
for (retry = 0; retry < 7; retry++) {
ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
msg, msg_bytes, NULL, 0, delay, &ack);
if (ret == -EBUSY)
@ -195,7 +195,7 @@ static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector,
msg[2] = DP_AUX_NATIVE_READ << 4;
msg[3] = (msg_bytes << 4) | (recv_bytes - 1);
for (retry = 0; retry < 4; retry++) {
for (retry = 0; retry < 7; retry++) {
ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
msg, msg_bytes, recv, recv_bytes, delay, &ack);
if (ret == -EBUSY)
@ -274,7 +274,7 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
break;
}
for (retry = 0; retry < 4; retry++) {
for (retry = 0; retry < 7; retry++) {
ret = radeon_process_aux_ch(auxch,
msg, msg_bytes, reply, reply_bytes, 0, &ack);
if (ret == -EBUSY)