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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2014-11-14 09:47:49 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-11-17 20:23:35 +0000
commitf560e3229564a673603541ebfb36118d7cd98038 (patch)
treef2dffe90adb7312286b6c80bc124819b3893b9db /include/linux/amba
parent3fb1581ea1ab0aec6ac5430dc0e257a8c9b71680 (diff)
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.h10
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)