mirror of https://gitee.com/openkylin/linux.git
f571053152
This commit adds suspend/resume support for the gatable clock driver used on Marvell EBU platforms. When getting out of suspend, the Marvell EBU platforms go through the bootloader, which re-enables all gatable clocks. However, upon resume, the clock framework will not disable again all gatable clocks that are not used. Therefore, if the clock driver does not save/restore the state of the gatable clocks, all gatable clocks that are not claimed by any device driver will remain enabled after a resume. This is why this driver saves and restores the state of those clocks. Since clocks aren't real devices, we don't have the normal ->suspend() and ->resume() of the device model, and have to use the ->suspend() and ->resume() hooks of the syscore_ops mechanism. This mechanism has the unfortunate idea of not providing a way of passing private data, which requires us to change the driver to make the assumption that there is only once instance of the gatable clock control structure. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: linux-kernel@vger.kernel.org Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1416585613-2113-9-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| armada-38x.c | ||
| armada-370.c | ||
| armada-375.c | ||
| armada-xp.c | ||
| clk-corediv.c | ||
| clk-cpu.c | ||
| common.c | ||
| common.h | ||
| dove.c | ||
| kirkwood.c | ||
| orion.c | ||