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From: Eric Nelson <eric.nelson@boundarydevices.com>
To: Mark Brown <broonie@kernel.org>
Cc: fabio.estevam@freescale.com, alsa-devel@alsa-project.org,
	lars@metafoo.de, tiwai@suse.de, lgirdwood@gmail.com,
	rmk+kernel@arm.linux.org.uk, jean-michel.hautbois@vodalys.com,
	troy.kisky@boundarydevices.com
Subject: Re: [RFC PATCH 5/6] ASoC: sgtl5000: disable internal PLL early
Date: Fri, 06 Mar 2015 15:16:21 -0700	[thread overview]
Message-ID: <54FA2735.9000805@boundarydevices.com> (raw)
In-Reply-To: <20150306201551.GZ21293@sirena.org.uk>

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Hi Mark,

On 03/06/2015 01:15 PM, Mark Brown wrote:
> On Thu, Feb 26, 2015 at 03:54:32PM -0700, Eric Nelson wrote:
> 
>> static const struct reg_default sgtl5000_reg_defaults[] = { {
>> SGTL5000_CHIP_DIG_POWER,		0x0000 }, -	{ SGTL5000_CHIP_CLK_CTRL,
>> 0x0008 },
> 
> Again, you shouldn't be changing the register defaults table unless
> the defaults don't match power up values.
> 

I described the rational in response to patch 2: there's a
dependency on the PLLs being disabled before a write to
ANA_POWER.

Regards,


Eric
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  reply	other threads:[~2015-03-06 22:16 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-26 22:54 [PATCH RFC 0/6] ASoC: sgtl5000: fix use of regulators and internal LDO Eric Nelson
2015-02-26 22:54 ` [RFC PATCH 1/6] ASoC: sgtl5000: fix regulator support Eric Nelson
2015-03-06 20:04   ` Mark Brown
2015-03-06 21:09     ` Eric Nelson
2015-03-07  9:59       ` Mark Brown
2015-02-26 22:54 ` [RFC PATCH 2/6] ASoC: sgtl5000: write all default registers Eric Nelson
2015-03-06 20:14   ` Mark Brown
2015-03-06 22:24     ` Eric Nelson
2016-06-15 14:38   ` Applied "ASoC: sgtl5000: Write all default registers" to the asoc tree Mark Brown
2015-02-26 22:54 ` [RFC PATCH 3/6] ASoC: sgtl5000: initialize CHIP_ANA_POWER to power-on defaults Eric Nelson
2015-03-06 20:12   ` Mark Brown
2015-03-06 22:14     ` Eric Nelson
2015-03-07 10:28       ` Mark Brown
2015-02-26 22:54 ` [RFC PATCH 4/6] ASoC: sgtl5000: check return values Eric Nelson
2015-02-26 22:54 ` [RFC PATCH 5/6] ASoC: sgtl5000: disable internal PLL early Eric Nelson
2015-03-06 20:15   ` Mark Brown
2015-03-06 22:16     ` Eric Nelson [this message]
2016-06-15 14:38   ` Applied "ASoC: sgtl5000: Disable internal PLL early" to the asoc tree Mark Brown
2015-02-26 22:54 ` [RFC PATCH 6/6] ASoC: sgtl5000: Don't disable regulators in SND_SOC_BIAS_OFF Eric Nelson
2015-03-06 20:16   ` Mark Brown
2015-03-06 22:35     ` Eric Nelson
2015-03-07 10:41       ` Mark Brown
2015-03-06 22:49 ` [PATCH RFC 0/6] ASoC: sgtl5000: fix use of regulators and internal LDO Eric Nelson
2015-03-06 22:53   ` Russell King - ARM Linux
2015-03-06 22:58     ` Eric Nelson
2015-03-06 23:16       ` Eric Nelson
2015-03-06 23:24         ` Russell King - ARM Linux
2015-03-06 23:31           ` Eric Nelson
2015-03-07 10:45   ` Mark Brown

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