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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2013-12-09 10:40:22 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-12-09 20:25:20 +0000 |
| commit | 5303c0f46c8708fff4148ebcc491f78710356952 (patch) | |
| tree | 1f0985780bba393615053c6dcc80cebdf7de1bb5 /drivers/amba | |
| parent | 89a5c985f81a0b60f7522044938f76caf28075a6 (diff) | |
| download | linux-rpi-5303c0f46c8708fff4148ebcc491f78710356952.tar.gz linux-rpi-5303c0f46c8708fff4148ebcc491f78710356952.tar.bz2 linux-rpi-5303c0f46c8708fff4148ebcc491f78710356952.zip | |
ARM: 7916/1: amba: Add clk_prepare|unprepare in runtime PM callbacks
To fully gate the clock and thus potentially also save more power in
runtime suspend state, extend clock handling with clk_prepare|unprepare
in the runtime PM callbacks.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/amba')
| -rw-r--r-- | drivers/amba/bus.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index ea1d8357f298..9e6029105607 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -95,7 +95,7 @@ static int amba_pm_runtime_suspend(struct device *dev) int ret = pm_generic_runtime_suspend(dev); if (ret == 0 && dev->driver) - clk_disable(pcdev->pclk); + clk_disable_unprepare(pcdev->pclk); return ret; } @@ -106,7 +106,7 @@ static int amba_pm_runtime_resume(struct device *dev) int ret; if (dev->driver) { - ret = clk_enable(pcdev->pclk); + ret = clk_prepare_enable(pcdev->pclk); /* Failure is probably fatal to the system, but... */ if (ret) return ret; |