From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Tue, 11 Dec 2012 14:52:43 +0000 Subject: [PATCH] mmc: mmci: Gate the clock in runtime suspend to save power In-Reply-To: <1355235474-12783-1-git-send-email-ulf.hansson@stericsson.com> References: <1355235474-12783-1-git-send-email-ulf.hansson@stericsson.com> Message-ID: <20121211145243.GQ14363@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Dec 11, 2012 at 03:17:54PM +0100, Ulf Hansson wrote: > From: Ulf Hansson > > The amba bus is already performing same actions but for the apb_pclk. > So here we just make sure the clock to card is gated as well to save > more power. At runtime resume we will thus restore the clock again. And how exactly do you ensure the requirement that a certain number of clocks is supplied to the card after the last command before you cut the clock?