Add push-pull mode support. In push-pull mode the channels' outputs have
same polarities and the edges are complementary delayed for one period.
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
include/linux/pwm.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 0ba416ab2772..765d760ef82d 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -29,11 +29,14 @@ enum pwm_polarity {
* PWM modes
* @PWM_MODE_NORMAL_BIT: PWM has one output
* @PWM_MODE_COMPLEMENTARY_BIT: PWM has 2 outputs with opposite polarities
+ * @PWM_MODE_PUSH_PULL_BIT: PWM has 2 outputs with same polarities and the edges
+ * are complementary delayed for one period
* @PWM_MODE_CNT: PWM modes count
*/
enum {
PWM_MODE_NORMAL_BIT,
PWM_MODE_COMPLEMENTARY_BIT,
+ PWM_MODE_PUSH_PULL_BIT,
PWM_MODE_CNT,
};
@@ -481,7 +484,11 @@ static inline bool pwm_caps_valid(struct pwm_caps caps)
static inline const char * const pwm_mode_desc(unsigned long mode)
{
- static const char * const modes[] = { "normal", "complementary" };
+ static const char * const modes[] = {
+ "normal",
+ "complementary",
+ "push-pull",
+ };
if (!pwm_mode_valid(mode))
return "invalid";
--
2.7.4
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