linux-kernel - Re: [PATCH 3/3] ASoC: fsl_ssi: remove register defaults

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Date:	Sun, 17 Jan 2016 15:16:05 +0100
From:	"Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
To:	Timur Tabi <timur@...i.org>
CC:	Fabio Estevam <festevam@...il.com>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] ASoC: fsl_ssi: remove register defaults

On 17.01.2016 06:16, Timur Tabi wrote:
> Maciej S. Szmigiero wrote:
>> This is because (at least according to the datasheet) imx21-class SSI
>> registers end at CCSR_SSI_SRMSK (no SACC{ST,EN,DIS} regs), so
>> reading them for cache initialization may not be safe.
>>
>> Also, a "MXC 91221 only" comment before these regs in FSL tree
>> (drivers/mxc/ssi/registers.h) seems to confirm that these registers
>> aren't present at least on some SSI (or SoC) models.
> 
> Can't we just mark them as precious or something, so that we don't have to have two structures?

Looks like it can be done with just one static regmap config struct
used then as template - I will post updated patch.

Maciej