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-rw-r--r--drivers/pwm/sysfs.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index ac0abecfbaa0..fbfc9e903230 100644
--- 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,