From: Mark Brown <broonie@kernel.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Eric Miao <eric.y.miao@gmail.com>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Kukjin Kim <kgene.kim@samsung.com>,
Stephen Warren <swarren@wwwdotorg.org>,
linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
Linux-OMAP <linux-omap@vger.kernel.org>,
linaro-kernel <linaro-kernel@lists.linaro.org>
Subject: Re: [PATCH 01/11] spi: Provide core support for runtime PM during transfers
Date: Mon, 29 Jul 2013 06:56:02 +0100 [thread overview]
Message-ID: <20130729055602.GO9858@sirena.org.uk> (raw)
In-Reply-To: <CACRpkdZuUiG0MydJ_k4Br5_10hXr-x4xqNLjWP8D_KFyMPg-zQ@mail.gmail.com>
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On Sun, Jul 28, 2013 at 10:51:31PM +0200, Linus Walleij wrote:
> On Sun, Jul 28, 2013 at 4:43 PM, Mark Brown <broonie@kernel.org> wrote:
> > + * @auto_runtime_pm: the core should ensure a runtime PM reference is held
> > + * while the hardware is prepared
> I'd mention here that the reference is taken on the parent
> device of the SPI master, i.e. the very platform or AMBA
> device, so that it will hit upwards to the bus.
Yeah, I was actually contemplating changing that to use the spidev
though I think I'm going to stich with what's there. On the one hand
runtime PM does do the right thing with children but really the way it's
set up at the minute is more obvious for users.
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next prev parent reply other threads:[~2013-07-29 5:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-28 14:43 [PATCH 01/11] spi: Provide core support for runtime PM during transfers Mark Brown
2013-07-28 14:43 ` [PATCH 02/11] spi/bcm63xx: Convert to core runtime PM Mark Brown
2013-07-28 14:43 ` [PATCH 03/11] spi/coldfire-qspi: " Mark Brown
2013-07-28 14:43 ` [PATCH 04/11] spi/omap2: Covert " Mark Brown
2013-07-28 21:20 ` Felipe Balbi
2013-07-28 14:43 ` [PATCH 05/11] spi/pl022: Convert " Mark Brown
[not found] ` <1375022606-7576-5-git-send-email-broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-07-28 20:52 ` Linus Walleij
2013-07-29 6:04 ` Mark Brown
2013-07-28 14:43 ` [PATCH 06/11] spi/pxa2xx: " Mark Brown
2013-07-28 14:43 ` [PATCH 07/11] spi/hspi: " Mark Brown
[not found] ` <1375022606-7576-1-git-send-email-broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-07-28 14:43 ` [PATCH 08/11] spi/s3c64xx: Use core for " Mark Brown
2013-07-28 14:43 ` [PATCH 10/11] spi/tegra20-sflash: Use core " Mark Brown
2013-07-28 20:51 ` [PATCH 01/11] spi: Provide core support for runtime PM during transfers Linus Walleij
2013-07-29 5:56 ` Mark Brown [this message]
2013-07-28 14:43 ` [PATCH 09/11] spi/tegra114: Use core runtime PM Mark Brown
2013-07-28 14:43 ` [PATCH 11/11] spi/tegra20-slink: " Mark Brown
2013-07-29 16:56 ` [PATCH 01/11] spi: Provide core support for runtime PM during transfers Stephen Warren
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