From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 20 Oct 2016 00:10:27 -0300 Subject: Linux-libre 4.8.2-gnu --- drivers/clk/sunxi-ng/ccu_mux.h | 91 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 drivers/clk/sunxi-ng/ccu_mux.h (limited to 'drivers/clk/sunxi-ng/ccu_mux.h') diff --git a/drivers/clk/sunxi-ng/ccu_mux.h b/drivers/clk/sunxi-ng/ccu_mux.h new file mode 100644 index 000000000..945082631 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu_mux.h @@ -0,0 +1,91 @@ +#ifndef _CCU_MUX_H_ +#define _CCU_MUX_H_ + +#include + +#include "ccu_common.h" + +struct ccu_mux_internal { + u8 shift; + u8 width; + + struct { + u8 index; + u8 div; + } fixed_prediv; + + struct { + u8 index; + u8 shift; + u8 width; + } variable_prediv; +}; + +#define SUNXI_CLK_MUX(_shift, _width) \ + { \ + .shift = _shift, \ + .width = _width, \ + } + +struct ccu_mux { + u16 reg; + u32 enable; + + struct ccu_mux_internal mux; + struct ccu_common common; +}; + +#define SUNXI_CCU_MUX(_struct, _name, _parents, _reg, _shift, _width, _flags) \ + struct ccu_mux _struct = { \ + .mux = SUNXI_CLK_MUX(_shift, _width), \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_PARENTS(_name, \ + _parents, \ + &ccu_mux_ops, \ + _flags), \ + } \ + } + +#define SUNXI_CCU_MUX_WITH_GATE(_struct, _name, _parents, _reg, \ + _shift, _width, _gate, _flags) \ + struct ccu_mux _struct = { \ + .enable = _gate, \ + .mux = SUNXI_CLK_MUX(_shift, _width), \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_PARENTS(_name, \ + _parents, \ + &ccu_mux_ops, \ + _flags), \ + } \ + } + +static inline struct ccu_mux *hw_to_ccu_mux(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_mux, common); +} + +extern const struct clk_ops ccu_mux_ops; + +void ccu_mux_helper_adjust_parent_for_prediv(struct ccu_common *common, + struct ccu_mux_internal *cm, + int parent_index, + unsigned long *parent_rate); +int ccu_mux_helper_determine_rate(struct ccu_common *common, + struct ccu_mux_internal *cm, + struct clk_rate_request *req, + unsigned long (*round)(struct ccu_mux_internal *, + unsigned long, + unsigned long, + void *), + void *data); +u8 ccu_mux_helper_get_parent(struct ccu_common *common, + struct ccu_mux_internal *cm); +int ccu_mux_helper_set_parent(struct ccu_common *common, + struct ccu_mux_internal *cm, + u8 index); + +#endif /* _CCU_MUX_H_ */ -- cgit v1.2.3-54-g00ecf