Re: [PATCH 2/2] ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions

From: Charles Keepax
Date: Fri Aug 28 2020 - 12:04:20 EST


On Thu, Aug 27, 2020 at 07:33:57PM +0200, Sylwester Nawrocki wrote:
> When the wm8958_mic_detect, wm8994_mic_detect functions get called from
> the machine driver, e.g. from the card's late_probe() callback, the CODEC
> device may be PM runtime suspended and any regmap writes have no effect.
> Add PM runtime calls to these functions to ensure the device registers
> are updated as expected.
> This suppresses an error during boot
> "wm8994-codec: ASoC: error at snd_soc_component_update_bits on wm8994-codec"
> caused by the regmap access error due to the cache_only flag being set.
>
> Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> ---

Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>

Thanks,
Charles