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From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: Mark Brown <broonie@kernel.org>
Cc: <alsa-devel@alsa-project.org>, <patches@opensource.cirrus.com>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 04/12] ASoC: cs42l42: Don't reconfigure the PLL while it is running
Date: Wed, 11 Aug 2021 11:56:34 +0100	[thread overview]
Message-ID: <b244d737-ae0d-2566-d909-c2264a2668ec@opensource.cirrus.com> (raw)
In-Reply-To: <20210810154959.GD4704@sirena.org.uk>

On 10/08/2021 16:49, Mark Brown wrote:
> On Tue, Aug 10, 2021 at 04:37:51PM +0100, Richard Fitzgerald wrote:
>> cs42l42_pcm_hw_params() must only configure the PLL if this is the first
>> stream to become active, otherwise it will be overwriting the registers
>> while the PLL is running.
> 
> Shouldn't the PLL code be noticing problematic attempts to reconfigure
> the PLL while it's active rather than the individual callers?
> 

I'll push a new version with cs42l42_pll_config() doing the check.

  parent reply	other threads:[~2021-08-11 10:56 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-10 15:37 [PATCH 00/12] ASoC: cs42l42: Series of bugfixes and improvements Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 01/12] ASoC: cs42l42: Use PLL for SCLK > 12.188MHz Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 02/12] ASoC: cs42l42: Don't claim to support 192k Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 03/12] ASoC: cs42l42: Always configure both ASP TX channels Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 04/12] ASoC: cs42l42: Don't reconfigure the PLL while it is running Richard Fitzgerald
2021-08-10 15:49   ` Mark Brown
2021-08-10 16:27     ` Richard Fitzgerald
2021-08-11 11:56       ` Mark Brown
2021-08-11 12:21         ` Richard Fitzgerald
2021-08-11 14:41           ` Mark Brown
2021-08-11 10:56     ` Richard Fitzgerald [this message]
2021-08-10 15:37 ` [PATCH 05/12] ASoC: cs42l42: Set correct SRC MCLK Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 06/12] ASoC: cs42l42: Mark OSC_SWITCH_STATUS register volatile Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 07/12] ASoC: cs42l42: Allow time for HP/ADC to power-up after enable Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 08/12] ASoC: cs42l42: Prevent NULL pointer deref in interrupt handler Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 09/12] ASoC: cs42l42: Remove runtime_suspend/runtime_resume callbacks Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 10/12] ASoC: cs42l42: Remove redundant pll_divout member Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 11/12] ASoC: cs42l42: Add HP Volume Scale control Richard Fitzgerald
2021-08-10 15:37 ` [PATCH 12/12] ASoC: cs42l42: Add control for audio slow-start switch Richard Fitzgerald

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