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Subject[PATCH 08/17] spi: pl022: Fully gate clocks at request inactivity
Date
Use clk_disable_unprepare and clk_prepare_enable from the runtime PM
callbacks, to fully gate|ungate clocks. Potentially this will save more
power, depending on the clock tree for the current SOC.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/spi/spi-pl022.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index db829a1..2bb238f 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2355,7 +2355,7 @@ static int pl022_runtime_suspend(struct device *dev)
{
struct pl022 *pl022 = dev_get_drvdata(dev);

- clk_disable(pl022->clk);
+ clk_disable_unprepare(pl022->clk);
pinctrl_pm_select_idle_state(dev);

return 0;
@@ -2366,7 +2366,7 @@ static int pl022_runtime_resume(struct device *dev)
struct pl022 *pl022 = dev_get_drvdata(dev);

pinctrl_pm_select_default_state(dev);
- clk_enable(pl022->clk);
+ clk_prepare_enable(pl022->clk);

return 0;
}
--
1.7.9.5


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