[PATCH 4/4] ASoC: ac97: Convert to GPIO descriptors
Andy Shevchenko
andriy.shevchenko at intel.com
Thu Jan 22 07:07:20 PST 2026
On Thu, Jan 22, 2026 at 08:45:00PM +0800, Peng Fan (OSS) wrote:
> of_gpio.h is deprecated, update the driver to use GPIO descriptors.
> - Use devm_gpiod_get to get GPIO descriptor, and set consumer
> name.
>
> Since the driver still pass the reset_gpio to pxa27x_configure_ac97reset,
> so use desc_to_gpio() to get it gpio id.
GPIO
Why can't we convert that one to use GPIO descriptor to begin with?
...
> if (dev->dev.of_node) {
> - reset_gpio = of_get_named_gpio(dev->dev.of_node, "reset-gpios", 0);
> - if (reset_gpio == -ENOENT)
> + /* Assert reset using GPIOD_OUT_HIGH, because reset is GPIO_ACTIVE_LOW */
> + rst_gpio = devm_gpiod_get(&dev->dev, "reset", GPIOD_OUT_HIGH);
> + ret = PTR_ERR(rst_gpio);
> + if (ret == -ENOENT)
> reset_gpio = -1;
> - else if (reset_gpio < 0)
> - return reset_gpio;
> + else if (ret)
> + return ret;
> + reset_gpio = desc_to_gpio(rst_gpio);
Also, have you considered moving towards 'reset-gpio' driver?
...
And last but not least Q, have you checked gpiolib-of.c if there is any quirks
regarding this case (might be some fixes related to polarity)?
--
With Best Regards,
Andy Shevchenko
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