[PATCH] ASoC: sun4i-codec: fix first delay on Speaker

Georgii Staroselskii
2019-05-15T12:59:08Z

This commit fixes the same issue as bf14da7 but for another codepath.
The issue can be triggered by having Speaker in codec audio routing.

&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>
---
sound/soc/sunxi/sun4i-codec.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 15d08e3..e0099519 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -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 have the amplifier up. 700ms seems the best
+ * compromise between the time to let the amplifier up and the
+ * time not to feel this delay while playing a sound.
+ */
+ msleep(700);
+ }
+
return 0;
}

--
2.7.4