Re: [PATCH] ASoC: rt722: reset codec to fix abnormal sound

Mark Brown <[email protected]> Wed, 29 Jul 2026 23:25:54 +0100

Newsgroups	org.kernel.vger.linux-sound
Message-ID	<[email protected]>

On Tue, Jul 28, 2026 at 05:01:11PM +0800, [email protected] wrote:

> The audio output may become abnormal after a warm reboot from Windows.
> Reset the codec once during hardware initialization to restore it to a known
> state and prevent the issue.

> @@ -1888,6 +1899,9 @@ int rt722_sdca_io_init(struct device *dev, struct sdw_slave *slave)
>  	rt722->hw_vid = (val & 0x0f00) >> 8;
>  	dev_dbg(&slave->dev, "%s hw_vid=0x%x\n", __func__, rt722->hw_vid);
>  
> +	if (!rt722->first_hw_init)
> +		rt722_sdca_reset(rt722);
> +
>  	rt722_sdca_dmic_preset(rt722);
>  	rt722_sdca_amp_preset(rt722);
>  	rt722_sdca_jack_preset(rt722);

Slirhgly separate issue but you probably need a _jack_init() after the
reset - your other devices do that, I think there's some races there.

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