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0c3c8e1358
Some multipliers have a maximum rate that is lower than what the register width allows to. Add a field in the multiplier structure to allow CCU driver to set that maximum. Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
#ifndef _CCU_MULT_H_
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#define _CCU_MULT_H_
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#include "ccu_common.h"
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#include "ccu_frac.h"
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#include "ccu_mux.h"
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struct ccu_mult_internal {
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u8 offset;
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u8 shift;
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u8 width;
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u8 min;
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u8 max;
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};
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#define _SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, _offset, _min, _max) \
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{ \
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.min = _min, \
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.max = _max, \
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.offset = _offset, \
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.shift = _shift, \
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.width = _width, \
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}
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#define _SUNXI_CCU_MULT_MIN(_shift, _width, _min) \
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_SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, 1, _min, 0)
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#define _SUNXI_CCU_MULT_OFFSET(_shift, _width, _offset) \
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_SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, _offset, 1, 0)
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#define _SUNXI_CCU_MULT(_shift, _width) \
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_SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, 1, 1, 0)
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struct ccu_mult {
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u32 enable;
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struct ccu_frac_internal frac;
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struct ccu_mult_internal mult;
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struct ccu_mux_internal mux;
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struct ccu_common common;
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};
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#define SUNXI_CCU_N_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
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_mshift, _mwidth, _gate, _lock, \
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_flags) \
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struct ccu_mult _struct = { \
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.enable = _gate, \
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.mult = _SUNXI_CCU_MULT(_mshift, _mwidth), \
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.common = { \
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.reg = _reg, \
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.hw.init = CLK_HW_INIT(_name, \
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_parent, \
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&ccu_mult_ops, \
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_flags), \
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}, \
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}
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static inline struct ccu_mult *hw_to_ccu_mult(struct clk_hw *hw)
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{
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struct ccu_common *common = hw_to_ccu_common(hw);
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return container_of(common, struct ccu_mult, common);
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}
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extern const struct clk_ops ccu_mult_ops;
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#endif /* _CCU_MULT_H_ */
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