ASoC: dmic: Allow GPIO operations to sleep

If there is a power GPIO provided we control it from DAPM context so there
is no problem with a sleeping GPIO, use the _cansleep() version of the API
to allow this.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200422083550.50711-1-broonie@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/dmic.c

@@ -59,14 +59,14 @@ static int dmic_aif_event(struct snd_soc_dapm_widget *w,
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
 		if (dmic->gpio_en)
-			gpiod_set_value(dmic->gpio_en, 1);
+			gpiod_set_value_cansleep(dmic->gpio_en, 1);
 
 		if (dmic->wakeup_delay)
 			msleep(dmic->wakeup_delay);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		if (dmic->gpio_en)
-			gpiod_set_value(dmic->gpio_en, 0);
+			gpiod_set_value_cansleep(dmic->gpio_en, 0);
 		break;
 	}