On Mon, Feb 26, 2018 at 2:05 PM, Richard Fitzgerald
<rf@xxxxxxxxxxxxxxxxxxxxx> wrote:
> These codecs have a variable number of I/O lines each of which
> is individually selectable to a wide range of possible functions.
>
> The functionality is slightly different from the traditional muxed
> GPIO since most of the functions can be mapped to any pin (and even
> the same function to multiple pins). Most pins have a dedicated
> "alternate" function that is only available on that pin. The
> alternate functions are usually a group of signals, though it is
> not always necessary to enable the full group, depending on the
> alternate function and how it is to be used. The mapping between
> alternate functions and GPIO pins varies between codecs depending
> on the number of alternate functions and available pins.
>
> Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> There are some minor changes since LinusW last reviewed this patch but as
> they are trivial I have carried forward Linus's Reviewed-by:
> - SPDX license headers
> - can now build it as a module
> - avoided a minor checkpatch warning about an unnecessary else {} in
> madera_get_group_name()
It's fine. Keep my Review tag.
Yours,
Linus Walleij
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