X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fpwm.h;h=851915eb87a6e253868bcbda25a2a09710a8c0a2;hb=8a36287a019f5d7532a8a1a7da6aa96e490dbb8a;hp=13acf85933b3afab39f20e04a5520077864f598b;hpb=3f129280b3f1df51387447d8366ab6c3b6607547;p=oweals%2Fu-boot.git

diff --git a/include/pwm.h b/include/pwm.h
index 13acf85933..851915eb87 100644
--- a/include/pwm.h
+++ b/include/pwm.h
@@ -1,31 +1,71 @@
 /*
  * header file for pwm driver.
  *
+ * Copyright 2016 Google Inc.
  * Copyright (c) 2011 samsung electronics
  * Donghwa Lee <dh09.lee@samsung.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #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_ */