linux-kernel - Re: [PATCH] atmel ac97c: using software reset instead hardware reset if not available

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Date:	Mon, 19 Dec 2011 11:28:44 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	voice <voice.shen@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-sound@...r.kernel.org,
	alsa-devel@...a-project.org, nicolas.ferre@...el.com,
	Hans-Christian.Egtvedt@...el.com, jm.lin@...el.com,
	hong.xu@...el.com
Subject: Re: [PATCH] atmel ac97c: using software reset instead hardware reset if not available

At Mon, 19 Dec 2011 17:57:52 +0800,
voice wrote:
> 
> Using software reset instead hardware reset if not available
> 
> Signed-off-by: Bo Shen <voice.shen@...el.com>
> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

Applied now.  Thanks.


Takashi


> ---
>  sound/atmel/ac97c.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
> index 6e5adde..73516f6 100644
> --- a/sound/atmel/ac97c.c
> +++ b/sound/atmel/ac97c.c
> @@ -899,6 +899,10 @@ static void atmel_ac97c_reset(struct atmel_ac97c *chip)
>  		/* AC97 v2.2 specifications says minimum 1 us. */
>  		udelay(2);
>  		gpio_set_value(chip->reset_pin, 1);
> +	} else {
> +		ac97c_writel(chip, MR, AC97C_MR_WRST | AC97C_MR_ENA);
> +		udelay(2);
> +		ac97c_writel(chip, MR, AC97C_MR_ENA);
>  	}
>  }
>  
> -- 
> 1.6.3.3
> 
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