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SubjectFW: [PATCH] atmel ac97c: using software reset instead hardware reset if not available
Date
From
Hi Sir,
Add patch to Atmel AC97C.

Object: using software reset instead hardware reset if not available

Best Regards,
Voice Shen
-----Original Message-----
From: Nicolas Ferre [mailto:nicolas.ferre@atmel.com]
Sent: Thursday, November 24, 2011 18:44 voice
To: Shen, Voice
Cc: linux-kernel@vger.kernel.org; linux-sound@vger.kernel.org; Lin, JM;
Xu, Hong
Subject: Re: [PATCH] atmel ac97c: using software reset instead hardware
reset if not available
On 11/23/2011 11:05 AM, voice :
> Using software reset instead hardware reset if not available
>
> Signed-off-by: Bo Shen <voice.shen@atmel.com>

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

You may need to sent it to the sound subsystem mailing-list and
maintainers.

Anyway, I let you follow this patch... As it is a fixup and will benefit
to existing platforms, I think that it can make its way to mainline
during 3.2 phase.

Best regards,

> ---
> 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);
> }
> }
>
--
Nicolas Ferre


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