[PATCH v4 4/4] pinctrl: rockchip: avoid hardirq-unsafe functions in irq_chip

Linus Walleij linus.walleij at linaro.org
Tue Mar 28 02:19:31 PDT 2017


On Thu, Mar 23, 2017 at 11:59 AM, John Keeping <john at metanate.com> wrote:

> With real-time preemption, regmap functions cannot be used in the
> implementation of irq_chip since they use spinlocks which may sleep.
>
> Move the setting of the mux for IRQs to an irq_bus_sync_unlock handler
> where we are allowed to sleep.
>
> Signed-off-by: John Keeping <john at metanate.com>
> Reviewed-by: Heiko Stuebner <heiko at sntech.de>
> Tested-by: Heiko Stuebner <heiko at sntech.de>
> ---
> v3: unchanged
> v2: unchanged

Patch applied.

Yours,
Linus Walleij



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