Re: [PATCH] ASoC: sgtl5000: Fix VAG power-on handling

[Fabio Estevam]

Hi Sebastian,

On Tue, Apr 14, 2020 at 3:11 PM Sebastian Reichel
<sebastian.reichel@xxxxxxxxxxxxx> wrote:
>
> As mentioned slightly out of patch context in the code, there
> is no reset routine for the chip. On boards where the chip is
> supplied by a fixed regulator, it might not even be resetted
> during (e.g. watchdog) reboot and can be in any state.
>
> If the device is probed with VAG enabled, the driver's probe
> routine will generate a loud pop sound when ANA_POWER is
> being programmed. Avoid this by properly disabling just the
> VAG bit and waiting the required power down time.
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>

Reviewed-by: Fabio Estevam <festivem@xxxxxxxxx>