Re: [RFC] regmap: Add regmap_pipe_read API

[Crestez Dan Leonard <leonard.crestez@intel.com>]

On 06/16/2016 06:43 PM, Geert Uytterhoeven wrote:
> Hi Leonard,
> 
> On Thu, Jun 16, 2016 at 5:24 PM, Crestez Dan Leonard
> <leonard.crestez@intel.com> wrote:
>> The regmap API usually assumes that bulk read operations will read a
>> range of registers but some I2C/SPI devices have certain registers for
>> which a such a read operation will return data from an internal FIFO
>> instead. Add an explicit API to support bulk read with pipe rather than
>> range semantics.
> 
> Please settle on either "fifo" or "pipe", instead of mixing both.
> Personally, I prefer the former.

Well, it doesn't have to be a fifo. The device can return data from some
other kind of buffer (maybe a stack). I can adjust the documentation to
clarify.

I considered naming it something like regmap_multi_read_one_reg or
something but regmap_pipe_read sounds reasonable and short.