From: Alex Deucher Date: Tue, 14 Jan 2014 15:29:59 +0000 (-0500) Subject: drm/radeon/dp: bump i2c-over-aux retries to 7 X-Git-Tag: v3.14-rc1~47^2~15^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2138681bdde35f21b1faea26ec51a2ef1f9a9685;p=kernel%2Fkernel-generic.git drm/radeon/dp: bump i2c-over-aux retries to 7 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 --- diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 37289f6..149e09a 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -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)