68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
|
|
* Copyright 2012 Freescale Semiconductor, Inc.
|
|
*
|
|
* The code contained herein is licensed under the GNU General Public
|
|
* License. You may obtain a copy of the GNU General Public License
|
|
* Version 2 or later at the following locations:
|
|
*
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*/
|
|
|
|
#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 */
|