linux-kernel - [PATCH 0/2] irqchip: renesas: Propagate wake-up settings to parent

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Message-Id: <1441731636-17610-1-git-send-email-geert+renesas@glider.be>
Date:	Tue,  8 Sep 2015 19:00:34 +0200
From:	Geert Uytterhoeven <geert+renesas@...der.be>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>
Cc:	Sudeep Holla <sudeep.holla@....com>,
	Magnus Damm <magnus.damm@...il.com>, linux-sh@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 0/2] irqchip: renesas: Propagate wake-up settings to parent

	Hi Thomas, Jason, Marc,

The renesas-intc-irqpin and renesas-irqc interrupt controllers are
cascaded to GICs, but their drivers don't propagate wake-up settings to
their parent interrupt controllers.

Since commit aec89ef72ba6c944 ("irqchip/gic: Enable SKIP_SET_WAKE and
MASK_ON_SUSPEND"), the GIC driver masks interrupts during suspend, and
wake-up through gpio-keys now fails on r8a73a4/ape6evm,
r8a7740/armadillo and sh73a0/kzm9g.

Fix this by propagating wake-up settings to the parent interrupt
controllers. There's no need to handle irq_set_irq_wake() failures, as
the renesas-intc-irqpin and renesas-irqc interrupt controllers are
always cascaded to GICs, and the GIC driver always sets SKIP_SET_WAKE
since the aforementioned commit.

These fixes are meant for v4.3, as commit aec89ef72ba6c944 is already
upstream.

Note that masking GIC interrupts during suspend has another side effect:
before, if no_console_suspend was enabled, the system woke up on console
activity. This is no longer the case, but that's not a bug.

Thanks!

Geert Uytterhoeven (2):
  irqchip: renesas-intc-irqpin: Propagate wake-up settings to parent
  irqchip: renesas-irqc: Propagate wake-up settings to parent

 drivers/irqchip/irq-renesas-intc-irqpin.c | 3 +++
 drivers/irqchip/irq-renesas-irqc.c        | 3 +++
 2 files changed, 6 insertions(+)

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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