On Fri, Dec 06, 2019 at 03:51:46PM +0800, Chuhong Yuan wrote:

> @@ -501,6 +501,8 @@ static int cs35l32_i2c_remove(struct i2c_client *i2c_client)
>  	/* Hold down reset */
>  	gpiod_set_value_cansleep(cs35l32->reset_gpio, 0);
>  
> +	regulator_bulk_disable(ARRAY_SIZE(cs35l32->supplies),
> +			       cs35l32->supplies);

This is a similar situation to the one Charles pointed out - the driver
is using runtime PM to manage the regulators so unless the device is
active when removed the regulators won't be enabled.