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rk32 dp: set lane and rate to 0 when get them via dpcd failed

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This commit is contained in:
yxj
2014-04-16 11:38:08 +08:00
parent 882b4ef12c
commit 0d00575b10
1 changed files with 9 additions and 8 deletions
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17
drivers/video/rockchip/transmitter/rk32_dp.c
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@@ -837,7 +837,7 @@ static int rk32_edp_get_max_rx_bandwidth(struct rk32_edp *edp,
u8 *bandwidth)
{
u8 data;
int retval;
int retval = 0;
/*
* For DP rev.1.1, Maximum link rate of Main Link lanes
@@ -846,10 +846,11 @@ static int rk32_edp_get_max_rx_bandwidth(struct rk32_edp *edp,
retval = rk32_edp_read_byte_from_dpcd(edp,
DPCD_MAX_LINK_RATE, &data);
if (retval < 0)
return retval;
*bandwidth = 0;
else
*bandwidth = data;
return retval;
*bandwidth = data;
return 0;
}
static int rk32_edp_get_max_rx_lane_count(struct rk32_edp *edp,
@@ -865,10 +866,10 @@ static int rk32_edp_get_max_rx_lane_count(struct rk32_edp *edp,
retval = rk32_edp_read_byte_from_dpcd(edp,
DPCD_MAX_LANE_CNT, &data);
if (retval < 0)
return retval;
*lane_count = DPCD_MAX_LANE_COUNT(data);
return 0;
*lane_count = 0;
else
*lane_count = DPCD_MAX_LANE_COUNT(data);
return retval;
}
static int rk32_edp_init_training(struct rk32_edp *edp)