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Commit 5303c0f4 authored by Ulf Hansson's avatar Ulf Hansson Committed by Russell King
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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: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 89a5c985

drivers/amba/bus.c

+2 −2
Original line number Diff line number Diff line
@@ -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;