test: panel: Add a test for the panel uclass
At present this uclass has no tests. Add a simple one which checks the PWM
configuration, regulator and GPIO.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pwm/sandbox_pwm.c b/drivers/pwm/sandbox_pwm.c
index 4b50b19..2898818 100644
--- a/drivers/pwm/sandbox_pwm.c
+++ b/drivers/pwm/sandbox_pwm.c
@@ -14,6 +14,14 @@
NUM_CHANNELS = 3,
};
+/**
+ * struct sandbox_pwm_chan - a sandbox PWM channel
+ *
+ * @period_ns: Period of the PWM in nanoseconds
+ * @duty_ns: Current duty cycle of the PWM in nanoseconds
+ * @enable: true if the PWM is enabled
+ * @polarity: true if the PWM polarity is active high
+ */
struct sandbox_pwm_chan {
uint period_ns;
uint duty_ns;
@@ -25,6 +33,23 @@
struct sandbox_pwm_chan chan[NUM_CHANNELS];
};
+int sandbox_pwm_get_config(struct udevice *dev, uint channel, uint *period_nsp,
+ uint *duty_nsp, bool *enablep, bool *polarityp)
+{
+ struct sandbox_pwm_priv *priv = dev_get_priv(dev);
+ struct sandbox_pwm_chan *chan;
+
+ if (channel >= NUM_CHANNELS)
+ return -ENOSPC;
+ chan = &priv->chan[channel];
+ *period_nsp = chan->period_ns;
+ *duty_nsp = chan->duty_ns;
+ *enablep = chan->enable;
+ *polarityp = chan->polarity;
+
+ return 0;
+}
+
static int sandbox_pwm_set_config(struct udevice *dev, uint channel,
uint period_ns, uint duty_ns)
{