linux-kernel - Re: [PATCH] regmap: slimbus: add support to raw read/writes

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Date:   Thu, 5 Jul 2018 18:39:14 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org
Subject: Re: [PATCH] regmap: slimbus: add support to raw read/writes



On 05/07/18 18:30, Mark Brown wrote:
> On Thu, Jul 05, 2018 at 06:20:50PM +0100, Srinivas Kandagatla wrote:
> 
>> Access to codec registers is done in 2 steps.
> 
>> 1> Write page number in page register.
>> 2> access register within the page.
> 
>> This seems to exactly what struct regmap_range_cfg gives.
> 
>> Adding ranges to regmap_config along with read/write bus callbacks works for
>> me.
> 
> OK, great - that's what I was expecting.
> 
Thanks, I will respin the patch removing reference to raw in commit log 
and patch.

Are reg_read/reg_write callbacks in bus regmap redundant to read/write 
callbacks?

By the looks of it, it seems redundant, reg_read/reg_write will never be 
used if bus regmap has read/write callbacks. Just wanted reconfirm 
before replacing them with just read/write callbacks.

thanks,
srini