From c5e8deaeebd5e223fc77df6aa8daa25f5b7f3ea9 Mon Sep 17 00:00:00 2001
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
Date: Mon, 30 Mar 2020 16:57:15 +0200
Subject: PWM: core: add apply API support for polarity

Some PWM chips support outputting an inverted PWM signal.
Add API support for this.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 include/pwm.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'include')

diff --git a/include/pwm.h b/include/pwm.h
index 67ea0f9bcb..b67ab13d2e 100644
--- a/include/pwm.h
+++ b/include/pwm.h
@@ -2,18 +2,24 @@
 #ifndef __PWM_H
 #define __PWM_H
 
+#include <dt-bindings/pwm/pwm.h>
+
 struct pwm_device;
 struct device_d;
 
+#define	PWM_POLARITY_NORMAL	0
+
 /*
  * struct pwm_state - state of a PWM channel
  * @period_ns: PWM period (in nanoseconds)
  * @duty_ns: PWM duty cycle (in nanoseconds)
+ * @polarity: PWM polarity
  * @p_enable: PWM enabled status
  */
 struct pwm_state {
 	unsigned int period_ns;
 	unsigned int duty_ns;
+	unsigned int polarity;
 	unsigned int p_enable;
 };
 
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