From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Youngmin Nam <youngmin.nam@samsung.com>,
tomasz.figa@gmail.com, s.nawrocki@samsung.com,
alim.akhtar@samsung.com, linus.walleij@linaro.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org, semen.protsenko@linaro.org
Subject: Re: [PATCH v2] pinctrl: samsung: add irq_set_affinity() for non wake up external gpio interrupt
Date: Mon, 27 Nov 2023 10:54:56 +0100 [thread overview]
Message-ID: <bb738a6b-815d-4fad-b73f-559f1ba8cd68@linaro.org> (raw)
In-Reply-To: <20231126094618.2545116-1-youngmin.nam@samsung.com>
On 26/11/2023 10:46, Youngmin Nam wrote:
> To support affinity setting for non wake up external gpio interrupt,
> add irq_set_affinity callback using irq number from pinctrl driver data.
>
> Before this patch, changing the irq affinity of gpio interrupt is not possible:
>
> # cat /proc/irq/418/smp_affinity
> 3ff
> # echo 00f > /proc/irq/418/smp_affinity
Does this command succeed on your board?
> # cat /proc/irq/418/smp_affinity
> 3ff
> # cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3 ...
> 418: 3631 0 0 0 ...
>
> With this patch applied, it's possible to change irq affinity of gpio interrupt:
...
On which board did you test it?
> + if (parent)
> + return parent->chip->irq_set_affinity(parent, dest, force);
> +
I think there is a helper for it: irq_chip_set_affinity_parent().
Best regards,
Krzysztof
next prev parent reply other threads:[~2023-11-27 9:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20231126091120epcas2p4a1320e3b0f9be8f8a0f575a322981d38@epcas2p4.samsung.com>
2023-11-26 9:46 ` [PATCH v2] pinctrl: samsung: add irq_set_affinity() for non wake up external gpio interrupt Youngmin Nam
2023-11-27 9:54 ` Krzysztof Kozlowski [this message]
2023-11-28 1:01 ` Youngmin Nam
2023-11-28 7:29 ` Krzysztof Kozlowski
2023-11-28 21:35 ` Sam Protsenko
2023-11-29 7:07 ` Youngmin Nam
2023-11-29 8:00 ` Krzysztof Kozlowski
2023-11-29 8:46 ` Youngmin Nam
2023-11-29 8:39 ` Krzysztof Kozlowski
2023-11-29 10:04 ` Youngmin Nam
2023-11-29 18:48 ` Sam Protsenko
2023-11-30 7:30 ` Youngmin Nam
2023-11-30 7:56 ` Krzysztof Kozlowski
2023-11-30 7:55 ` Krzysztof Kozlowski
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