linux-kernel - Re: [PATCH 5/9] ASoC: Blackfin: AC97 Blackfin CPU DAI driver

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Date:	Thu, 4 Sep 2008 13:49:34 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Bryan Wu <cooloney@...nel.org>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Cliff Cai <cliff.cai@...log.com>
Subject: Re: [PATCH 5/9] ASoC: Blackfin: AC97 Blackfin CPU DAI driver

On Thu, Sep 04, 2008 at 04:22:04PM +0800, Bryan Wu wrote:

> +static void bf5xx_ac97_cold_reset(struct snd_ac97 *ac97)
> +{
> +#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET
> +	pr_debug("%s enter\n", __func__);
> +
> +	/* It is specified for bf548-ezkit */
> +	gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 0);
> +	/* Keep reset pin low for 1 ms */
> +	mdelay(1);
> +	gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 1);
> +	/* Wait for bit clock recover */
> +	mdelay(1);
> +#endif
> +}

Sorry, I did mean to say: shouldn't this print a warning like the warm
reset does if it's not implemented?
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