[PATCH v3 08/10] pwm: add push-pull mode support
From: Claudiu Beznea <hidden>
Date: 2018-02-22 12:04:01
Also in:
dri-devel, intel-gfx, linux-arm-kernel, linux-clk, linux-devicetree, linux-fbdev, linux-hwmon, linux-leds, linux-media, linux-pwm, linux-samsung-soc, lkml
Subsystem:
pwm subsystem, the rest · Maintainers:
Uwe Kleine-König, Linus Torvalds
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 <redacted> --- 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