Commit 1f2675f6 authored by Georgii Staroselskii's avatar Georgii Staroselskii Committed by Mark Brown

ASoC: sun4i-codec: fix first delay on Speaker

Allwinner DAC seems to have a delay in the Speaker audio routing. When
playing a sound for the first time, the sound gets chopped. On a second
play the sound is played correctly. After some time (~5s) the issue gets
back.

This commit seems to be fixing the same issue as bf14da7e but
for another codepath.

This is the DTS that was used to debug the problem.

&codec {
        allwinner,pa-gpios = <&r_pio 0 11 GPIO_ACTIVE_HIGH>; /* PL11 */
        allwinner,audio-routing =
                "Speaker", "LINEOUT";

        status = "okay";
}
Signed-off-by: default avatarGeorgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent be1b577d
......@@ -1329,6 +1329,15 @@ static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
gpiod_set_value_cansleep(scodec->gpio_pa,
!!SND_SOC_DAPM_EVENT_ON(event));
if (SND_SOC_DAPM_EVENT_ON(event)) {
/*
* Need a delay to wait for DAC to push the data. 700ms seems
* to be the best compromise not to feel this delay while
* playing a sound.
*/
msleep(700);
}
return 0;
}
......
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