mfd: ucb1x00-assabet: Use DEVICE_ATTR_RO macro

Use DEVICE_ATTR_RO macro helper instead of plain DEVICE_ATTR, which makes
the code a bit shorter and easier to read.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c
index ecc9e9fc331d6a30dfe748e95bf542e78bb53225..6a389737c6153bcf95350c92c26ed090571d545a 100644 (file)
--- a/drivers/mfd/ucb1x00-assabet.c
+++ b/drivers/mfd/ucb1x00-assabet.c
@@ -28,7 +28,7 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
        ucb1x00_adc_disable(ucb);                               \
        return sprintf(buf, "%d\n", val);                       \
 }                                                              \
-static DEVICE_ATTR(name,0444,name##_show,NULL)
+static DEVICE_ATTR_RO(name)
 
 UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
 UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);