Merge tag 'pwm/for-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...

[firefly-linux-kernel-4.4.55.git] / drivers / pwm / sysfs.c

diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index ac0abecfbaa017c6ef0ad7369db98762c3b143bc..c472772f00a7880611e23e62cfbd1731d04dfa27 100644 (file)
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -133,9 +133,19 @@ static ssize_t pwm_polarity_show(struct device *child,
                                 char *buf)
 {
        const struct pwm_device *pwm = child_to_pwm_device(child);
+       const char *polarity = "unknown";
 
-       return sprintf(buf, "%s\n",
-                      pwm_get_polarity(pwm) ? "inversed" : "normal");
+       switch (pwm_get_polarity(pwm)) {
+       case PWM_POLARITY_NORMAL:
+               polarity = "normal";
+               break;
+
+       case PWM_POLARITY_INVERSED:
+               polarity = "inversed";
+               break;
+       }
+
+       return sprintf(buf, "%s\n", polarity);
 }
 
 static ssize_t pwm_polarity_store(struct device *child,
@@ -302,9 +312,9 @@ static struct attribute *pwm_chip_attrs[] = {
 ATTRIBUTE_GROUPS(pwm_chip);
 
 static struct class pwm_class = {
-       .name           = "pwm",
-       .owner          = THIS_MODULE,
-       .dev_groups     = pwm_chip_groups,
+       .name = "pwm",
+       .owner = THIS_MODULE,
+       .dev_groups = pwm_chip_groups,
 };
 
 static int pwmchip_sysfs_match(struct device *parent, const void *data)