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test: panel: Add a test for the panel uclass

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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>
This commit is contained in:
Simon Glass
2018-10-01 12:22:40 -06:00
parent d07b6e145e
commit 5d9a88f44a
6 changed files with 111 additions and 2 deletions
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25
drivers/pwm/sandbox_pwm.c
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@@ -14,6 +14,14 @@ enum {
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_priv {
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)
{