diff options
| author |   Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-11-14 09:47:49 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-11-17 20:23:35 +0000 |
| commit | f560e3229564a673603541ebfb36118d7cd98038 (patch) | |
| tree | f2dffe90adb7312286b6c80bc124819b3893b9db /include/linux/amba | |
| parent | ARM: 8199/1: PM / Runtime: Add getter for querying the IRQ safe option v12 (diff) | |
| download | linux-dev-f560e3229564a673603541ebfb36118d7cd98038.tar.xz linux-dev-f560e3229564a673603541ebfb36118d7cd98038.zip | |
ARM: 8200/1: amba: Add helpers for (un)preparing AMBA clock v12
Add amba_pclk_prepare() and amba_pclk_unprepare() inline functions for
handling the AMBA bus clock by device drivers.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux/amba')
| -rw-r--r-- | include/linux/amba/bus.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index c324f5700d1a..ac02f9bd63dc 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -97,6 +97,16 @@ void amba_release_regions(struct amba_device *); #define amba_pclk_disable(d) \ do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0) +static inline int amba_pclk_prepare(struct amba_device *dev) +{ + return clk_prepare(dev->pclk); +} + +static inline void amba_pclk_unprepare(struct amba_device *dev) +{ + clk_unprepare(dev->pclk); +} + /* Some drivers don't use the struct amba_device */ #define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff) #define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f) |