From: Maxime Ripard <maxime@cerno.tech>
To: Samuel Holland <samuel@sholland.org>
Cc: devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <maz@kernel.org>,
linux-sunxi@googlegroups.com,
Russell King <linux@armlinux.org.uk>,
linux-kernel@vger.kernel.org, Chen-Yu Tsai <wens@csie.org>,
Rob Herring <robh+dt@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/9] irqchip/sun6i-r: Add wakeup support
Date: Mon, 8 Jun 2020 10:49:17 +0200 [thread overview]
Message-ID: <20200608084917.qufcgedya2kr4arv@gilmour.lan> (raw)
In-Reply-To: <20200525041302.51213-3-samuel@sholland.org>
[-- Attachment #1.1: Type: text/plain, Size: 787 bytes --]
On Sun, May 24, 2020 at 11:12:55PM -0500, Samuel Holland wrote:
> Maintain a mask of wake-enabled IRQs, and enable them in hardware
> during the syscore phase of suspend. The restore the original mask
> of enabled IRQs (just the NMI) during resume.
>
> This serves two purposes. First, it lets power management firmware
> running on the ARISC coprocessor know which wakeup sources Linux wants
> to have enabled. That way, it can avoid turning them off when it shuts
> down the remainder of the clock tree. Second, it preconfigures the
> coprocessor's interrupt controller, so the firmware's wakeup logic
> is as simple as waiting for an interrupt to arrive.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Maxime
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-06-08 8:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 4:12 [PATCH v2 0/9] sunxi: Support IRQ wakeup from deep sleep Samuel Holland
2020-05-25 4:12 ` [PATCH v2 1/9] irqchip/sun6i-r: Use a stacked irqchip driver Samuel Holland
2020-06-08 8:48 ` Maxime Ripard
2020-06-15 5:29 ` Samuel Holland
2020-06-26 13:32 ` Maxime Ripard
2020-05-25 4:12 ` [PATCH v2 2/9] irqchip/sun6i-r: Add wakeup support Samuel Holland
2020-06-08 8:49 ` Maxime Ripard [this message]
2020-05-25 4:12 ` [PATCH v2 3/9] dt-bindings: irq: Add a compatible for the H3 R_INTC Samuel Holland
2020-05-28 23:50 ` Rob Herring
2020-05-25 4:12 ` [PATCH v2 4/9] ARM: dts: sunxi: h3/h5: Add r_intc node Samuel Holland
2020-05-25 4:12 ` [PATCH v2 5/9] ARM: dts: sunxi: h3/h5: Move wakeup-capable IRQs to r_intc Samuel Holland
2020-05-25 4:12 ` [PATCH v2 6/9] ARM: dts: sunxi: a83t: " Samuel Holland
2020-05-25 4:13 ` [PATCH v2 7/9] arm64: dts: allwinner: a64: " Samuel Holland
2020-05-25 4:13 ` [PATCH v2 8/9] arm64: dts: allwinner: h6: Fix indentation of IR node Samuel Holland
2020-05-25 4:13 ` [PATCH v2 9/9] arm64: dts: allwinner: h6: Move wakeup-capable IRQs to r_intc Samuel Holland
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200608084917.qufcgedya2kr4arv@gilmour.lan \
--to=maxime@cerno.tech \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=jason@lakedaemon.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=linux@armlinux.org.uk \
--cc=maz@kernel.org \
--cc=robh+dt@kernel.org \
--cc=samuel@sholland.org \
--cc=tglx@linutronix.de \
--cc=wens@csie.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).