mfd: wm831x: 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>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Zhen Lei 2021-06-02 19:43:31 +08:00 committed by Lee Jones
parent 3da286aa4a
commit 981ce06ab8

View File

@ -38,7 +38,7 @@ static int wm831x_unique_id_read(struct wm831x *wm831x, char *id)
return 0;
}
static ssize_t wm831x_unique_id_show(struct device *dev,
static ssize_t unique_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct wm831x *wm831x = dev_get_drvdata(dev);
@ -52,7 +52,7 @@ static ssize_t wm831x_unique_id_show(struct device *dev,
return sprintf(buf, "%*phN\n", WM831X_UNIQUE_ID_LEN, id);
}
static DEVICE_ATTR(unique_id, 0444, wm831x_unique_id_show, NULL);
static DEVICE_ATTR_RO(unique_id);
int wm831x_otp_init(struct wm831x *wm831x)
{