Re: (subset) [PATCH 1/2] [RFC] regmap: Add bulk read/write callbacks into regmap_config

[Jani Nikula <jani.nikula@linux.intel.com>]

On Thu, 05 May 2022, Mark Brown <broonie@kernel.org> wrote:
> On Sat, 30 Apr 2022 04:51:44 +0200, Marek Vasut wrote:
>> Currently the regmap_config structure only allows the user to implement
>> single element register read/write using .reg_read/.reg_write callbacks.
>> The regmap_bus already implements bulk counterparts of both, and is being
>> misused as a workaround for the missing bulk read/write callbacks in
>> regmap_config by a couple of drivers. To stop this misuse, add the bulk
>> read/write callbacks to regmap_config and call them from the regmap core
>> code.
>> 
>> [...]

Hey Mark, sorry for hijacking the thread a bit. regmap.h seems to have
comprehensive API documentation, but there's very little in terms of
higher level documentation that I could find. Is there any?

I've been toying with the idea of adding a regmap based interface for
accessing Display Port DPCD registers, with caching, and regmap seems
like it's got the kitchen sink but I find it a bit difficult to
navigate...

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center