Re: [PATCH v1] ASoC: tas2781: Optimize calibration to avoid full device reboot after calibration

Mark Brown <[email protected]> Thu, 30 Jul 2026 17:40:55 +0100

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

On Fri, Jul 24, 2026 at 06:25:43PM +0800, Shenghao Ding wrote:
> Some clients have specified a new requirement: complete device restarts
> should be avoided after calibration. Only a hot boot of the Smart Audio
> Amplifier is required.

> +	/*
> +	 * Set reloading-firmware flag after calibration, the flag will work
> +	 * during next playback, then set to the program id after reloading
> +	 * firmware.
> +	 */
> +	for (i = 0; i < priv->ndev; i++)
> +		priv->tasdevice[i].cur_prog = -1;
> +

I'll apply this since this is preexisting, but it might be worth
checking the interaction with DAPM delayed powerdown (or indeed active
streams).  There's an element of user error here of course.

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