From: Mike Dunn <mikedunn@newsguy.com>
To: Igor Grinberg <grinberg@compulab.co.il>
Cc: Marek Vasut <marex@denx.de>,
alsa-devel@alsa-project.org, Eric Miao <eric.y.miao@gmail.com>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/4] ALSA: pxa27x: fix ac97 warm reset bug work-around code
Date: Mon, 07 Jan 2013 05:40:15 -0800 [thread overview]
Message-ID: <50EAD03F.4050507@newsguy.com> (raw)
In-Reply-To: <50EA9607.7050408@compulab.co.il>
On 01/07/2013 01:31 AM, Igor Grinberg wrote:
> On 01/06/13 21:13, Mike Dunn wrote:
[..]
>> diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> index a611ad3..8281e17 100644
>> --- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> @@ -463,6 +463,9 @@
>> GPIO76_LCD_PCLK, \
>> GPIO77_LCD_BIAS
>>
>> +/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */
>> +#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DRIVE_HIGH)
>> +#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DRIVE_HIGH)
>
> Do we really need to change the LPM? Because DRIVE_* only affect LPM.
Oops, no, we don't. In fact, since you pointed this out to me in your review of
the earlier patch, I meant to remove it. It does no harm, but should be removed
for clarity.
Thanks,
Mike
WARNING: multiple messages have this Message-ID (diff)
From: mikedunn@newsguy.com (Mike Dunn)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/4] ALSA: pxa27x: fix ac97 warm reset bug work-around code
Date: Mon, 07 Jan 2013 05:40:15 -0800 [thread overview]
Message-ID: <50EAD03F.4050507@newsguy.com> (raw)
In-Reply-To: <50EA9607.7050408@compulab.co.il>
On 01/07/2013 01:31 AM, Igor Grinberg wrote:
> On 01/06/13 21:13, Mike Dunn wrote:
[..]
>> diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> index a611ad3..8281e17 100644
>> --- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
>> @@ -463,6 +463,9 @@
>> GPIO76_LCD_PCLK, \
>> GPIO77_LCD_BIAS
>>
>> +/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */
>> +#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DRIVE_HIGH)
>> +#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DRIVE_HIGH)
>
> Do we really need to change the LPM? Because DRIVE_* only affect LPM.
Oops, no, we don't. In fact, since you pointed this out to me in your review of
the earlier patch, I meant to remove it. It does no harm, but should be removed
for clarity.
Thanks,
Mike
next prev parent reply other threads:[~2013-01-07 13:39 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-06 19:13 [PATCH 0/4] ALSA: pxa27x: ac97 reset fixes Mike Dunn
2013-01-06 19:13 ` Mike Dunn
2013-01-06 19:13 ` [PATCH 1/4] ALSA: pxa2xx: fix ac97 cold reset Mike Dunn
2013-01-06 19:13 ` Mike Dunn
2013-01-07 9:16 ` Igor Grinberg
2013-01-07 9:16 ` Igor Grinberg
2013-01-07 13:36 ` Mike Dunn
2013-01-07 13:36 ` Mike Dunn
2013-01-07 13:57 ` Igor Grinberg
2013-01-07 13:57 ` Igor Grinberg
2013-01-07 14:19 ` Mike Dunn
2013-01-07 14:19 ` Mike Dunn
2013-01-07 15:28 ` Igor Grinberg
2013-01-07 15:28 ` Igor Grinberg
2013-01-06 19:13 ` [PATCH 2/4] ALSA: pxa27x: fix ac97 warm reset bug work-around code Mike Dunn
2013-01-06 19:13 ` Mike Dunn
2013-01-07 9:31 ` Igor Grinberg
2013-01-07 9:31 ` Igor Grinberg
2013-01-07 11:06 ` Russell King - ARM Linux
2013-01-07 11:06 ` Russell King - ARM Linux
2013-01-07 13:40 ` Mike Dunn [this message]
2013-01-07 13:40 ` Mike Dunn
2013-01-06 19:13 ` [PATCH 3/4] ALSA: pxa27x: ac97 controller driver requests gpio Mike Dunn
2013-01-06 19:13 ` Mike Dunn
2013-01-07 9:36 ` Igor Grinberg
2013-01-07 9:36 ` Igor Grinberg
2013-01-07 9:42 ` Igor Grinberg
2013-01-07 9:42 ` Igor Grinberg
2013-01-07 14:10 ` Mike Dunn
2013-01-07 14:10 ` Mike Dunn
2013-01-07 15:38 ` Igor Grinberg
2013-01-07 15:38 ` Igor Grinberg
2013-01-07 16:40 ` Mike Dunn
2013-01-07 16:40 ` Mike Dunn
2013-01-06 19:14 ` [PATCH 4/4] ALSA: pxa27x: rename pxa27x_assert_ac97() Mike Dunn
2013-01-06 19:14 ` Mike Dunn
2013-01-07 9:39 ` Igor Grinberg
2013-01-07 9:39 ` Igor Grinberg
2013-01-07 14:34 ` Mike Dunn
2013-01-07 14:34 ` Mike Dunn
2013-01-07 15:41 ` Igor Grinberg
2013-01-07 15:41 ` Igor Grinberg
2013-01-06 20:33 ` [PATCH 0/4] ALSA: pxa27x: ac97 reset fixes Robert Jarzmik
2013-01-06 20:33 ` Robert Jarzmik
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