forked from luck/tmp_suning_uos_patched
a83387729a
Add support for Actions Semi mux clock together with helper functions to be used in composite clock. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
//
|
|
// OWL mux clock driver
|
|
//
|
|
// Copyright (c) 2014 Actions Semi Inc.
|
|
// Author: David Liu <liuwei@actions-semi.com>
|
|
//
|
|
// Copyright (c) 2018 Linaro Ltd.
|
|
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
|
|
|
|
#ifndef _OWL_MUX_H_
|
|
#define _OWL_MUX_H_
|
|
|
|
#include "owl-common.h"
|
|
|
|
struct owl_mux_hw {
|
|
u32 reg;
|
|
u8 shift;
|
|
u8 width;
|
|
};
|
|
|
|
struct owl_mux {
|
|
struct owl_mux_hw mux_hw;
|
|
struct owl_clk_common common;
|
|
};
|
|
|
|
#define OWL_MUX_HW(_reg, _shift, _width) \
|
|
{ \
|
|
.reg = _reg, \
|
|
.shift = _shift, \
|
|
.width = _width, \
|
|
}
|
|
|
|
#define OWL_MUX(_struct, _name, _parents, _reg, \
|
|
_shift, _width, _flags) \
|
|
struct owl_mux _struct = { \
|
|
.mux_hw = OWL_MUX_HW(_reg, _shift, _width), \
|
|
.common = { \
|
|
.regmap = NULL, \
|
|
.hw.init = CLK_HW_INIT_PARENTS(_name, \
|
|
_parents, \
|
|
&owl_mux_ops, \
|
|
_flags), \
|
|
}, \
|
|
}
|
|
|
|
static inline struct owl_mux *hw_to_owl_mux(const struct clk_hw *hw)
|
|
{
|
|
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
|
|
|
|
return container_of(common, struct owl_mux, common);
|
|
}
|
|
|
|
u8 owl_mux_helper_get_parent(const struct owl_clk_common *common,
|
|
const struct owl_mux_hw *mux_hw);
|
|
int owl_mux_helper_set_parent(const struct owl_clk_common *common,
|
|
struct owl_mux_hw *mux_hw, u8 index);
|
|
|
|
extern const struct clk_ops owl_mux_ops;
|
|
|
|
#endif /* _OWL_MUX_H_ */
|