X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fpwm%2Fsandbox_pwm.c;h=4b50b19c618d0318b5b494ef42a84e34afc79cd0;hb=c590e62d3b6f6dd72eae1183614f919e3fd7ffcb;hp=c2ce974ddea4fb03eecce65db7334babebd72d5d;hpb=4f66e09bb9fbc47b73f67c3cc08ee2663e8fcdb1;p=u-boot

diff --git a/drivers/pwm/sandbox_pwm.c b/drivers/pwm/sandbox_pwm.c
index c2ce974dde..4b50b19c61 100644
--- a/drivers/pwm/sandbox_pwm.c
+++ b/drivers/pwm/sandbox_pwm.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -11,8 +10,6 @@
 #include <pwm.h>
 #include <asm/test.h>
 
-DECLARE_GLOBAL_DATA_PTR;
-
 enum {
 	NUM_CHANNELS	= 3,
 };
@@ -21,6 +18,7 @@ struct sandbox_pwm_chan {
 	uint period_ns;
 	uint duty_ns;
 	bool enable;
+	bool polarity;
 };
 
 struct sandbox_pwm_priv {
@@ -56,9 +54,24 @@ static int sandbox_pwm_set_enable(struct udevice *dev, uint channel,
 	return 0;
 }
 
+static int sandbox_pwm_set_invert(struct udevice *dev, uint channel,
+				  bool polarity)
+{
+	struct sandbox_pwm_priv *priv = dev_get_priv(dev);
+	struct sandbox_pwm_chan *chan;
+
+	if (channel >= NUM_CHANNELS)
+		return -ENOSPC;
+	chan = &priv->chan[channel];
+	chan->polarity = polarity;
+
+	return 0;
+}
+
 static const struct pwm_ops sandbox_pwm_ops = {
 	.set_config	= sandbox_pwm_set_config,
 	.set_enable	= sandbox_pwm_set_enable,
+	.set_invert	= sandbox_pwm_set_invert,
 };
 
 static const struct udevice_id sandbox_pwm_ids[] = {