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author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-03-07 20:01:28 (GMT) |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-04-25 15:03:46 (GMT) |
commit | 6c7b06850c5a1615cc9e660e0d24ce2025bb9bcf (patch) | |
tree | 985229601193226b294602a7a1c19337607d2300 /arch/arm/mach-imx | |
parent | eb92044eb3d59d29c9812e85e3a4bf41f6f38e3a (diff) | |
download | linux-fsl-qoriq-6c7b06850c5a1615cc9e660e0d24ce2025bb9bcf.tar.xz |
ARM i.MX: prepare for common clock framework
- Add necessary #ifdefs for CONFIG_COMMON_CLOCK
- Add a global spinlock to protect the CCM registers
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r-- | arch/arm/mach-imx/clk.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h new file mode 100644 index 0000000..00f2590 --- /dev/null +++ b/arch/arm/mach-imx/clk.h @@ -0,0 +1,44 @@ +#ifndef __MACH_IMX_CLK_H +#define __MACH_IMX_CLK_H + +#include <linux/spinlock.h> +#include <linux/clk-provider.h> +#include <mach/clock.h> + +struct clk *imx_clk_pllv1(const char *name, char *parent, + void __iomem *base); + +static inline struct clk *imx_clk_fixed(const char *name, int rate) +{ + return clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate); +} + +static inline struct clk *imx_clk_divider(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width) +{ + return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT, + reg, shift, width, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_gate(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char **parents, int num_parents) +{ + return clk_register_mux(NULL, name, parents, num_parents, 0, reg, shift, + width, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_fixed_factor(const char *name, + const char *parent, unsigned int mult, unsigned int div) +{ + return clk_register_fixed_factor(NULL, name, parent, + CLK_SET_RATE_PARENT, mult, div); +} + +#endif |