On Fri, 15 Nov 2024 14:18:44 -0600
David Lechner <dlechner@xxxxxxxxxxxx> wrote:
> Add a new driver for a generic PWM trigger for SPI offloads.
>
> Signed-off-by: David Lechner <dlechner@xxxxxxxxxxxx>
Trivial thing to tidy up mentioned below.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> +static int spi_offload_trigger_pwm_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct spi_offload_trigger_info info = {
> + .fwnode = dev_fwnode(dev),
> + .ops = &spi_offload_trigger_pwm_ops,
> + };
> + struct spi_offload_trigger_pwm_state *st;
> + struct pwm_state state;
> + int ret;
> +
> + st = devm_kzalloc(&pdev->dev, sizeof(*st), GFP_KERNEL);
use dev.
> + if (!st)
> + return -ENOMEM;
> +
> + info.priv = st;
> + st->dev = dev;
> +
> + st->pwm = devm_pwm_get(&pdev->dev, NULL);
use dev.
> + if (IS_ERR(st->pwm))
> + return dev_err_probe(dev, PTR_ERR(st->pwm), "failed to get PWM\n");
> +
> + /* init with duty_cycle = 0, output enabled to ensure trigger off */
> + pwm_init_state(st->pwm, &state);
> + state.enabled = true;
> +
> + ret = pwm_apply_might_sleep(st->pwm, &state);
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "failed to apply PWM state\n");
> +
> + ret = devm_add_action_or_reset(dev, spi_offload_trigger_pwm_release, st->pwm);
> + if (ret)
> + return ret;
> +
> + return devm_spi_offload_trigger_register(dev, &info);
> +}
