diff mbox series

[2/4] pwm: cros-ec: Explicitly set .polarity in .get_state()

Message ID 20230228135508.1798428-3-u.kleine-koenig@pengutronix.de
State Superseded
Delegated to: Thierry Reding
Headers show
Series pwm: Ensure .polarity is set in .get_state() | expand

Commit Message

Uwe Kleine-König Feb. 28, 2023, 1:55 p.m. UTC
The driver only supports normal polarity. Complete the implementation of
.get_state() by setting .polarity accordingly.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/pwm/pwm-cros-ec.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Guenter Roeck Feb. 28, 2023, 4:19 p.m. UTC | #1
On Tue, Feb 28, 2023 at 5:55 AM Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:
>
> The driver only supports normal polarity. Complete the implementation of
> .get_state() by setting .polarity accordingly.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Reviewed-by: Guenter Roeck <groeck@chromium.org>

> ---
>  drivers/pwm/pwm-cros-ec.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pwm/pwm-cros-ec.c b/drivers/pwm/pwm-cros-ec.c
> index 86df6702cb83..ad18b0ebe3f1 100644
> --- a/drivers/pwm/pwm-cros-ec.c
> +++ b/drivers/pwm/pwm-cros-ec.c
> @@ -198,6 +198,7 @@ static int cros_ec_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
>
>         state->enabled = (ret > 0);
>         state->period = EC_PWM_MAX_DUTY;
> +       state->polarity = PWM_POLARITY_NORMAL;
>
>         /*
>          * Note that "disabled" and "duty cycle == 0" are treated the same. If
> --
> 2.39.1
>
Uwe Kleine-König March 10, 2023, 6:50 p.m. UTC | #2
On Tue, Feb 28, 2023 at 02:55:06PM +0100, Uwe Kleine-König wrote:
> The driver only supports normal polarity. Complete the implementation of
> .get_state() by setting .polarity accordingly.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

I think we should apply this patch as a fix to prevent similar failures
as reported for the meson driver. To justify that:

Fixes: 1f0d3bb02785 ("pwm: Add ChromeOS EC PWM driver")

Best regards
Uwe
diff mbox series

Patch

diff --git a/drivers/pwm/pwm-cros-ec.c b/drivers/pwm/pwm-cros-ec.c
index 86df6702cb83..ad18b0ebe3f1 100644
--- a/drivers/pwm/pwm-cros-ec.c
+++ b/drivers/pwm/pwm-cros-ec.c
@@ -198,6 +198,7 @@  static int cros_ec_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
 
 	state->enabled = (ret > 0);
 	state->period = EC_PWM_MAX_DUTY;
+	state->polarity = PWM_POLARITY_NORMAL;
 
 	/*
 	 * Note that "disabled" and "duty cycle == 0" are treated the same. If