diff options
Diffstat (limited to 'drivers/clk/spacemit/ccu_mix.h')
| -rw-r--r-- | drivers/clk/spacemit/ccu_mix.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/drivers/clk/spacemit/ccu_mix.h b/drivers/clk/spacemit/ccu_mix.h new file mode 100644 index 000000000000..51d19f5d6aac --- /dev/null +++ b/drivers/clk/spacemit/ccu_mix.h @@ -0,0 +1,218 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2024 SpacemiT Technology Co. Ltd + * Copyright (c) 2024-2025 Haylen Chu <heylenay@4d2.org> + */ + +#ifndef _CCU_MIX_H_ +#define _CCU_MIX_H_ + +#include <linux/clk-provider.h> + +#include "ccu_common.h" + +/** + * struct ccu_gate_config - Gate configuration + * + * @mask: Mask to enable the gate. Some clocks may have more than one bit + * set in this field. + */ +struct ccu_gate_config { + u32 mask; +}; + +struct ccu_factor_config { + u32 div; + u32 mul; +}; + +struct ccu_mux_config { + u8 shift; + u8 width; +}; + +struct ccu_div_config { + u8 shift; + u8 width; +}; + +struct ccu_mix { + struct ccu_factor_config factor; + struct ccu_gate_config gate; + struct ccu_div_config div; + struct ccu_mux_config mux; + struct ccu_common common; +}; + +#define CCU_GATE_INIT(_mask) { .mask = _mask } +#define CCU_FACTOR_INIT(_div, _mul) { .div = _div, .mul = _mul } +#define CCU_MUX_INIT(_shift, _width) { .shift = _shift, .width = _width } +#define CCU_DIV_INIT(_shift, _width) { .shift = _shift, .width = _width } + +#define CCU_PARENT_HW(_parent) { .hw = &_parent.common.hw } +#define CCU_PARENT_NAME(_name) { .fw_name = #_name } + +#define CCU_MIX_INITHW(_name, _parent, _ops, _flags) \ + .hw.init = &(struct clk_init_data) { \ + .flags = _flags, \ + .name = #_name, \ + .parent_data = (const struct clk_parent_data[]) \ + { _parent }, \ + .num_parents = 1, \ + .ops = &_ops, \ + } + +#define CCU_MIX_INITHW_PARENTS(_name, _parents, _ops, _flags) \ + .hw.init = CLK_HW_INIT_PARENTS_DATA(#_name, _parents, &_ops, _flags) + +#define CCU_GATE_DEFINE(_name, _parent, _reg_ctrl, _mask_gate, _flags) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW(_name, _parent, spacemit_ccu_gate_ops, _flags), \ + } \ +} + +#define CCU_FACTOR_DEFINE(_name, _parent, _div, _mul) \ +static struct ccu_mix _name = { \ + .factor = CCU_FACTOR_INIT(_div, _mul), \ + .common = { \ + CCU_MIX_INITHW(_name, _parent, spacemit_ccu_factor_ops, 0), \ + } \ +} + +#define CCU_MUX_DEFINE(_name, _parents, _reg_ctrl, _shift, _width, _flags) \ +static struct ccu_mix _name = { \ + .mux = CCU_MUX_INIT(_shift, _width), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, spacemit_ccu_mux_ops, \ + _flags), \ + } \ +} + +#define CCU_DIV_DEFINE(_name, _parent, _reg_ctrl, _shift, _width, _flags) \ +static struct ccu_mix _name = { \ + .div = CCU_DIV_INIT(_shift, _width), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW(_name, _parent, spacemit_ccu_div_ops, _flags) \ + } \ +} + +#define CCU_FACTOR_GATE_DEFINE(_name, _parent, _reg_ctrl, _mask_gate, _div, \ + _mul) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .factor = CCU_FACTOR_INIT(_div, _mul), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW(_name, _parent, spacemit_ccu_factor_gate_ops, 0) \ + } \ +} + +#define CCU_MUX_GATE_DEFINE(_name, _parents, _reg_ctrl, _shift, _width, \ + _mask_gate, _flags) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .mux = CCU_MUX_INIT(_shift, _width), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, \ + spacemit_ccu_mux_gate_ops, _flags), \ + } \ +} + +#define CCU_DIV_GATE_DEFINE(_name, _parent, _reg_ctrl, _shift, _width, \ + _mask_gate, _flags) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .div = CCU_DIV_INIT(_shift, _width), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW(_name, _parent, spacemit_ccu_div_gate_ops, \ + _flags), \ + } \ +} + +#define CCU_MUX_DIV_GATE_DEFINE(_name, _parents, _reg_ctrl, _mshift, _mwidth, \ + _muxshift, _muxwidth, _mask_gate, _flags) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .div = CCU_DIV_INIT(_mshift, _mwidth), \ + .mux = CCU_MUX_INIT(_muxshift, _muxwidth), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, \ + spacemit_ccu_mux_div_gate_ops, _flags), \ + }, \ +} + +#define CCU_MUX_DIV_GATE_SPLIT_FC_DEFINE(_name, _parents, _reg_ctrl, _reg_fc, \ + _mshift, _mwidth, _mask_fc, _muxshift, \ + _muxwidth, _mask_gate, _flags) \ +static struct ccu_mix _name = { \ + .gate = CCU_GATE_INIT(_mask_gate), \ + .div = CCU_DIV_INIT(_mshift, _mwidth), \ + .mux = CCU_MUX_INIT(_muxshift, _muxwidth), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + .reg_fc = _reg_fc, \ + .mask_fc = _mask_fc, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, \ + spacemit_ccu_mux_div_gate_ops, _flags), \ + }, \ +} + +#define CCU_MUX_DIV_GATE_FC_DEFINE(_name, _parents, _reg_ctrl, _mshift, _mwidth,\ + _mask_fc, _muxshift, _muxwidth, _mask_gate, \ + _flags) \ +CCU_MUX_DIV_GATE_SPLIT_FC_DEFINE(_name, _parents, _reg_ctrl, _reg_ctrl, _mshift,\ + _mwidth, _mask_fc, _muxshift, _muxwidth, \ + _mask_gate, _flags) + +#define CCU_MUX_DIV_FC_DEFINE(_name, _parents, _reg_ctrl, _mshift, _mwidth, \ + _mask_fc, _muxshift, _muxwidth, _flags) \ +static struct ccu_mix _name = { \ + .div = CCU_DIV_INIT(_mshift, _mwidth), \ + .mux = CCU_MUX_INIT(_muxshift, _muxwidth), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + .reg_fc = _reg_ctrl, \ + .mask_fc = _mask_fc, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, \ + spacemit_ccu_mux_div_ops, _flags), \ + }, \ +} + +#define CCU_MUX_FC_DEFINE(_name, _parents, _reg_ctrl, _mask_fc, _muxshift, \ + _muxwidth, _flags) \ +static struct ccu_mix _name = { \ + .mux = CCU_MUX_INIT(_muxshift, _muxwidth), \ + .common = { \ + .reg_ctrl = _reg_ctrl, \ + .reg_fc = _reg_ctrl, \ + .mask_fc = _mask_fc, \ + CCU_MIX_INITHW_PARENTS(_name, _parents, spacemit_ccu_mux_ops, \ + _flags) \ + }, \ +} + +static inline struct ccu_mix *hw_to_ccu_mix(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_mix, common); +} + +extern const struct clk_ops spacemit_ccu_gate_ops; +extern const struct clk_ops spacemit_ccu_factor_ops; +extern const struct clk_ops spacemit_ccu_mux_ops; +extern const struct clk_ops spacemit_ccu_div_ops; +extern const struct clk_ops spacemit_ccu_factor_gate_ops; +extern const struct clk_ops spacemit_ccu_div_gate_ops; +extern const struct clk_ops spacemit_ccu_mux_gate_ops; +extern const struct clk_ops spacemit_ccu_mux_div_ops; +extern const struct clk_ops spacemit_ccu_mux_div_gate_ops; +#endif /* _CCU_DIV_H_ */ |