X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fpwm.h;h=851915eb87a6e253868bcbda25a2a09710a8c0a2;hb=312a6c016a2d81aa3fbc605f5c0c315b6a4e3464;hp=f24f2202f481a777e757fd9e8be286b4784ee627;hpb=aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/pwm.h b/include/pwm.h
index f24f220..851915e 100644
--- a/include/pwm.h
+++ b/include/pwm.h
@@ -1,6 +1,7 @@
 /*
  * header file for pwm driver.
  *
+ * Copyright 2016 Google Inc.
  * Copyright (c) 2011 samsung electronics
  * Donghwa Lee <dh09.lee@samsung.com>
  *
@@ -10,9 +11,61 @@
 #ifndef _pwm_h_
 #define _pwm_h_
 
+/* struct pwm_ops: Operations for the PWM uclass */
+struct pwm_ops {
+	/**
+	 * set_config() - Set the PWM configuration
+	 *
+	 * @dev:	PWM device to update
+	 * @channel:	PWM channel to update
+	 * @period_ns:	PWM period in nanoseconds
+	 * @duty_ns:	PWM duty period in nanoseconds
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*set_config)(struct udevice *dev, uint channel, uint period_ns,
+			  uint duty_ns);
+
+	/**
+	 * set_enable() - Enable or disable the PWM
+	 *
+	 * @dev:	PWM device to update
+	 * @channel:	PWM channel to update
+	 * @enable:	true to enable, false to disable
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*set_enable)(struct udevice *dev, uint channel, bool enable);
+};
+
+#define pwm_get_ops(dev)	((struct pwm_ops *)(dev)->driver->ops)
+
+/**
+ * pwm_set_config() - Set the PWM configuration
+ *
+ * @dev:	PWM device to update
+ * @channel:	PWM channel to update
+ * @period_ns:	PWM period in nanoseconds
+ * @duty_ns:	PWM duty period in nanoseconds
+ * @return 0 if OK, -ve on error
+ */
+int pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
+		   uint duty_ns);
+
+/**
+ * pwm_set_enable() - Enable or disable the PWM
+ *
+ * @dev:	PWM device to update
+ * @channel:	PWM channel to update
+ * @enable:	true to enable, false to disable
+ * @return 0 if OK, -ve on error
+ */
+int pwm_set_enable(struct udevice *dev, uint channel, bool enable);
+
+/* Legacy interface */
+#ifndef CONFIG_DM_PWM
 int	pwm_init		(int pwm_id, int div, int invert);
 int	pwm_config		(int pwm_id, int duty_ns, int period_ns);
 int	pwm_enable		(int pwm_id);
 void	pwm_disable		(int pwm_id);
+#endif
 
 #endif /* _pwm_h_ */