Re: [PATCH] ASoC: max98373: Removing 0x203E from the volatile reg

From: Pierre-Louis Bossart
Date: Mon Jul 25 2022 - 13:08:35 EST




On 7/22/22 20:52, Ryan Lee wrote:
> The 0x203E speaker gain register should be non-volatile.
> This register value was not able to be synced because it was marked as
> volatile.
>
> Signed-off-by: Ryan Lee <ryans.lee@xxxxxxxxxx>
> ---
> sound/soc/codecs/max98373-i2c.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/sound/soc/codecs/max98373-i2c.c b/sound/soc/codecs/max98373-i2c.c
> index 4fe065ece17c..3e04c7f0cce4 100644
> --- a/sound/soc/codecs/max98373-i2c.c
> +++ b/sound/soc/codecs/max98373-i2c.c
> @@ -442,7 +442,6 @@ static bool max98373_volatile_reg(struct device *dev, unsigned int reg)
> {
> switch (reg) {
> case MAX98373_R2000_SW_RESET ... MAX98373_R2009_INT_FLAG3:
> - case MAX98373_R203E_AMP_PATH_GAIN:

That register isn't declared as volatile for the SoundWire case so that
sounds like a good fix

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>

> case MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK:
> case MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK:
> case MAX98373_R20B6_BDE_CUR_STATE_READBACK: