Re: [PATCH v3 1/5] firmware: qcom_scm: provide a read-modify-write function

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Mar 17, 2023 at 5:28 PM Mukesh Ojha <quic_mojha@xxxxxxxxxxx> wrote:

> It was released by Srinivas K. that there is a need of
> read-modify-write scm exported function so that it can
> be used by multiple clients.
>
> Let's introduce qcom_scm_io_update_field() which masks
> out the bits and write the passed value to that
> bit-offset. Subsequent patch will use this function.
>
> Suggested-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Signed-off-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx>

This is starting to reimplement regmap.
In this case regmap_update_bits().

What about just using regmap as accessor for these
registers instead?

Yours,
Linus Walleij