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From: Thomas Gleixner <tglx@linutronix.de>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Jon Hunter <jonathanh@nvidia.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Jiang Liu <jiang.liu@linux.intel.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Kevin Hilman <khilman@kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Grygorii Strashko <grygorii.strashko@ti.com>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Soren Brinkmann <soren.brinkmann@xilinx.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [RFC PATCH V2 3/8] genirq: Add runtime power management support for IRQ chips
Date: Tue, 26 Jan 2016 18:17:26 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.11.1601261803410.3886@nanos> (raw)
In-Reply-To: <CAPDyKFoNcARZRZfXM1Rdn2PZqtnUdbfn1Fb4PzKZs_DKkxKtSw@mail.gmail.com>

On Fri, 22 Jan 2016, Ulf Hansson wrote:
> Here's a small collection of drivers that I easily picked up as
> candidates for using these new APIs.
> In principle, they would invoke these new APIs from their runtime PM callbacks.
> 
> drivers/spi/spi-atmel.c
> drivers/spi/spi-pl022.c
> drivers/i2c/busses/i2c-omap.c
> drivers/i2c/busses/i2c-nomadik.c
> drivers/i2c/busses/i2c-sh_mobile.c
> drivers/mmc/host/mtk-sd.c
> drivers/mmc/host/mmci.c

Instead of adding those calls to each driver, we can be smart and flag the
interrupt as AUTO_RUNTIME_SUSPEND or such.

So the runtime_pm core can handle it when invoking the
dev_pm_ops->runtime_suspend()/resume() callbacks.

Unfortunately the devres stuff is exceptionally bad to be used for this, but
with some surgery it should be doable.

Thanks,

	tglx

  reply	other threads:[~2016-01-26 17:18 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-17 10:48 [RFC PATCH V2 0/8] Add support for Tegra210 AGIC Jon Hunter
2015-12-17 10:48 ` [RFC PATCH V2 1/8] irqdomain: Ensure type settings match for an existing mapping Jon Hunter
2015-12-17 13:16   ` Linus Walleij
2015-12-18 10:10     ` Jon Hunter
2015-12-22  9:58       ` Linus Walleij
2015-12-22 10:00         ` Linus Walleij
2015-12-22 11:27           ` Jon Hunter
2015-12-22 11:31           ` Grygorii Strashko
2015-12-17 10:48 ` [RFC PATCH V2 2/8] irqdomain: Don't set type when mapping an IRQ Jon Hunter
2015-12-17 12:18   ` Linus Walleij
2015-12-22 11:18   ` Grygorii Strashko
2015-12-22 11:56     ` Jon Hunter
2016-03-18  9:16       ` Geert Uytterhoeven
2015-12-17 10:48 ` [RFC PATCH V2 3/8] genirq: Add runtime power management support for IRQ chips Jon Hunter
2015-12-17 13:19   ` Linus Walleij
2015-12-18 10:20     ` Jon Hunter
2016-01-12 18:40   ` Grygorii Strashko
2016-01-12 21:43     ` Sören Brinkmann
2016-01-18 14:47   ` Ulf Hansson
2016-01-19 10:43     ` Jon Hunter
2016-01-20 15:30       ` Thomas Gleixner
2016-01-21  8:38         ` Jon Hunter
2016-01-21 12:40         ` Ulf Hansson
2016-01-21 19:51           ` Thomas Gleixner
2016-01-22 11:08             ` Ulf Hansson
2016-01-26 17:17               ` Thomas Gleixner [this message]
2016-02-05 14:37             ` Linus Walleij
2016-03-18 13:57               ` Grygorii Strashko
2015-12-17 10:48 ` [RFC PATCH V2 4/8] irqchip/gic: Don't initialise chip if mapping IO space fails Jon Hunter
2015-12-17 13:21   ` Linus Walleij
2015-12-17 10:48 ` [RFC PATCH V2 5/8] irqchip/gic: Return an error if GIC initialisation fails Jon Hunter
2015-12-17 13:26   ` Linus Walleij
2015-12-18 10:24     ` Jon Hunter
2015-12-17 10:48 ` [RFC PATCH V2 6/8] irqchip/gic: Assign irqchip dynamically Jon Hunter
2015-12-17 11:00   ` Marc Zyngier
2015-12-18 10:26     ` Jon Hunter
2015-12-17 10:48 ` [RFC PATCH V2 7/8] irqchip/gic: Prepare for adding platform driver Jon Hunter
2015-12-17 10:48 ` [RFC PATCH V2 8/8] irqchip/gic: Add support for tegra AGIC interrupt controller Jon Hunter
2015-12-17 10:58   ` Jon Hunter
2015-12-17 13:32   ` Linus Walleij
2015-12-18 10:44     ` Jon Hunter
2015-12-22 10:03       ` Linus Walleij

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