diff options
| author | Simon Glass <sjg@chromium.org> | 2018-10-01 12:22:40 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-10-09 04:40:27 -0600 |
| commit | 5d9a88f44a93daf623906fee7ca20fa396460ae2 (patch) | |
| tree | 1ce98cc7c8752f59280d131a8ad0cb2c32ac6071 /drivers/pwm/sandbox_pwm.c | |
| parent | d07b6e145ec2f0e77aab0fbe15dfd87f40170a8c (diff) | |
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>
Diffstat (limited to 'drivers/pwm/sandbox_pwm.c')
| -rw-r--r-- | drivers/pwm/sandbox_pwm.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/pwm/sandbox_pwm.c b/drivers/pwm/sandbox_pwm.c index 4b50b19c61..28988187e0 100644 --- a/drivers/pwm/sandbox_pwm.c +++ b/drivers/pwm/sandbox_pwm.c @@ -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) { |