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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 bf14da7 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: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Georgii Staroselskii 2019-05-28 13:47:39 +03:00 committed by Mark Brown
parent be1b577d01
commit 1f2675f665
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GPG Key ID: 24D68B725D5487D0
1 changed files with 9 additions and 0 deletions
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9
sound/soc/sunxi/sun4i-codec.c
View File

@ -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;
}