dm: sandbox: pwm: add test for pwm_set_invert()

[u-boot] / drivers / pwm / sandbox_pwm.c

diff --git a/drivers/pwm/sandbox_pwm.c b/drivers/pwm/sandbox_pwm.c
index c2ce974ddea4fb03eecce65db7334babebd72d5d..fcb10845515650ba51f439325393d2188e87faa2 100644 (file)
--- a/drivers/pwm/sandbox_pwm.c
+++ b/drivers/pwm/sandbox_pwm.c
@@ -21,6 +21,7 @@ struct sandbox_pwm_chan {
        uint period_ns;
        uint duty_ns;
        bool enable;
+       bool polarity;
 };
 
 struct sandbox_pwm_priv {
@@ -56,9 +57,24 @@ 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[] = {