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i2c: fix retry_count to return error when i2c bus checkidle was low

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Signed-off-by: David Wu <wdc@rock-chips.com>
This commit is contained in:
David Wu 2015-02-08 21:38:22 +08:00
parent 14529fd551
commit af62aaaac5
1 changed files with 2 additions and 1 deletions
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3
drivers/i2c/busses/i2c-rockchip.c
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@ -741,7 +741,7 @@ static int rockchip_i2c_xfer(struct i2c_adapter *adap,
clk_enable(i2c->clk);
if (i2c->check_idle) {
int state, retry = 10;
while (retry--) {
while (retry) {
state = rockchip_i2c_check_idle(i2c);
if (state == I2C_IDLE)
break;
@ -749,6 +749,7 @@ static int rockchip_i2c_xfer(struct i2c_adapter *adap,
mdelay(10);
else
msleep(10);
retry--;
}
if (retry == 0) {
dev_err(i2c->dev, "i2c is not in idle(state = %d)\n", state);