ASoC: sta32x: Use devm_gpiod_get_optional at appropriate place (79ffbf11) · Commits · 戴 / test

devm_gpiod_get_optional() is equivalent to devm_gpiod_get(), except that when no GPIO was assigned to the requested function it will return NULL. This is convenient for drivers that need to handle optional GPIOs. Signed-off-by:

Axel Lin <axel.lin@ingics.com> Signed-off-by:

Mark Brown <broonie@kernel.org>

sound/soc/codecs/sta32x.c

+4 −10

Original line number	Diff line number	Diff line
		@@ -1096,16 +1096,10 @@ static int sta32x_i2c_probe(struct i2c_client *i2c,
		#endif

		/* GPIOs */
		sta32x->gpiod_nreset = devm_gpiod_get(dev, "reset");
		if (IS_ERR(sta32x->gpiod_nreset)) {
		ret = PTR_ERR(sta32x->gpiod_nreset);
		if (ret != -ENOENT && ret != -ENOSYS)
		return ret;

		sta32x->gpiod_nreset = NULL;
		} else {
		gpiod_direction_output(sta32x->gpiod_nreset, 0);
		}
		sta32x->gpiod_nreset = devm_gpiod_get_optional(dev, "reset",
		GPIOD_OUT_LOW);
		if (IS_ERR(sta32x->gpiod_nreset))
		return PTR_ERR(sta32x->gpiod_nreset);

		/* regulators */
		for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)

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