diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 6a292ea5e35c..6c00c107ebf3 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -554,18 +554,23 @@ static int s3c24xx_i2c_xfer(struct i2c_adapter *adap, int retry; int ret; + clk_enable(i2c->clk); + for (retry = 0; retry < adap->retries; retry++) { ret = s3c24xx_i2c_doxfer(i2c, msgs, num); - if (ret != -EAGAIN) + if (ret != -EAGAIN) { + clk_disable(i2c->clk); return ret; + } dev_dbg(i2c->dev, "Retrying transmission (%d)\n", retry); udelay(100); } + clk_disable(i2c->clk); return -EREMOTEIO; } @@ -910,6 +915,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) platform_set_drvdata(pdev, i2c); dev_info(&pdev->dev, "%s: S3C I2C adapter\n", dev_name(&i2c->adap.dev)); + clk_disable(i2c->clk); return 0; err_cpufreq: @@ -977,7 +983,9 @@ static int s3c24xx_i2c_resume(struct device *dev) struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev); i2c->suspended = 0; + clk_enable(i2c->clk); s3c24xx_i2c_init(i2c); + clk_disable(i2c->clk); return 0; } |