Re: [PATCH 1/2] spi: Allow master drivers to set realtime priority

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Thu, Mar 23, 2017 at 11:36 AM, Lukas Wunner <lukas@xxxxxxxxx> wrote:

> Commit 14af60b6fb3b ("spi/pl022: Add high priority message pump
> support") extended the pl022 driver to optionally run the message pump
> kworker thread with realtime priority, subject to a bool set by the
> platform.
>
> Commit ffbbdd21329f ("spi: create a message queueing infrastructure")
> moved a large portion of pl022 to generic code, making the realtime
> priority support available to other drivers.
>
> However the priority is set to MAX_RT_PRIO - 1, higher than most IRQs
> and identical to the CPU timer clock threads.  This seems excessive so
> make the priority configurable.
>
> Cc: Mark Brown <broonie@xxxxxxxxxx>
> Cc: Chris Blair <chris.blair@xxxxxxxxxxxxxx>
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Cc: Mathias Duckeck <m.duckeck@xxxxxxxxx>
> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>

Looks reasonable to me.
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij
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