diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/clk/mxs/clk.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/clk/mxs/clk.h b/drivers/clk/mxs/clk.h new file mode 100644 index 000000000..75729a7df --- /dev/null +++ b/drivers/clk/mxs/clk.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + */ + +#ifndef __MXS_CLK_H +#define __MXS_CLK_H + +struct clk; + +#include <linux/clk-provider.h> +#include <linux/spinlock.h> + +#define SET 0x4 +#define CLR 0x8 + +extern spinlock_t mxs_lock; + +int mxs_clk_wait(void __iomem *reg, u8 shift); + +struct clk *mxs_clk_pll(const char *name, const char *parent_name, + void __iomem *base, u8 power, unsigned long rate); + +struct clk *mxs_clk_ref(const char *name, const char *parent_name, + void __iomem *reg, u8 idx); + +struct clk *mxs_clk_div(const char *name, const char *parent_name, + void __iomem *reg, u8 shift, u8 width, u8 busy); + +struct clk *mxs_clk_frac(const char *name, const char *parent_name, + void __iomem *reg, u8 shift, u8 width, u8 busy); + +static inline struct clk *mxs_clk_fixed(const char *name, int rate) +{ + return clk_register_fixed_rate(NULL, name, NULL, 0, rate); +} + +static inline struct clk *mxs_clk_gate(const char *name, + const char *parent_name, void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent_name, CLK_SET_RATE_PARENT, + reg, shift, CLK_GATE_SET_TO_DISABLE, + &mxs_lock); +} + +static inline struct clk *mxs_clk_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char *const *parent_names, int num_parents) +{ + return clk_register_mux(NULL, name, parent_names, num_parents, + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + reg, shift, width, 0, &mxs_lock); +} + +static inline struct clk *mxs_clk_fixed_factor(const char *name, + const char *parent_name, unsigned int mult, unsigned int div) +{ + return clk_register_fixed_factor(NULL, name, parent_name, + CLK_SET_RATE_PARENT, mult, div); +} + +#endif /* __MXS_CLK_H */ |