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ea8ca3109d
With the new clk parenting code, clk_init_data was expanded to include .parent_hws and .parent_data, for clk drivers to specify parents without name strings of clocks. Also some macros were added for using these two items to reference clock parents. Based on that to expand macros for sprd clocks: - SPRD_*_DATA, take an array of struct clk_parent_data * as its parents which should be a combination of .fw_name (devicetree clock-names), .hw (pointers to a local struct clk_hw). - SPRD_*_HW, take a local struct clk_hw pointer, instead of a string, as its parent. - SPRD_*_FW_NAME, take a string of clock-names decleared in the device tree as the clock parent. Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lkml.kernel.org/r/20200304072730.9193-6-zhang.lyra@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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//
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// Spreadtrum composite clock driver
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//
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// Copyright (C) 2017 Spreadtrum, Inc.
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// Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
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#ifndef _SPRD_COMPOSITE_H_
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#define _SPRD_COMPOSITE_H_
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#include "common.h"
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#include "mux.h"
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#include "div.h"
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struct sprd_comp {
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struct sprd_mux_ssel mux;
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struct sprd_div_internal div;
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struct sprd_clk_common common;
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};
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#define SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
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_mshift, _mwidth, _dshift, _dwidth, \
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_flags, _fn) \
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struct sprd_comp _struct = { \
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.mux = _SPRD_MUX_CLK(_mshift, _mwidth, _table), \
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.div = _SPRD_DIV_CLK(_dshift, _dwidth), \
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.common = { \
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.regmap = NULL, \
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.reg = _reg, \
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.hw.init = _fn(_name, _parent, \
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&sprd_comp_ops, _flags), \
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} \
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}
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#define SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, _table, \
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_mshift, _mwidth, _dshift, _dwidth, _flags) \
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SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
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_mshift, _mwidth, _dshift, _dwidth, \
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_flags, CLK_HW_INIT_PARENTS)
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#define SPRD_COMP_CLK(_struct, _name, _parent, _reg, _mshift, \
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_mwidth, _dshift, _dwidth, _flags) \
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SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, NULL, \
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_mshift, _mwidth, _dshift, _dwidth, _flags)
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#define SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, _table, \
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_mshift, _mwidth, _dshift, \
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_dwidth, _flags) \
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SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
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_mshift, _mwidth, _dshift, _dwidth, \
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_flags, CLK_HW_INIT_PARENTS_DATA)
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#define SPRD_COMP_CLK_DATA(_struct, _name, _parent, _reg, _mshift, \
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_mwidth, _dshift, _dwidth, _flags) \
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SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, NULL, \
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_mshift, _mwidth, _dshift, _dwidth, \
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_flags)
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static inline struct sprd_comp *hw_to_sprd_comp(const struct clk_hw *hw)
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{
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struct sprd_clk_common *common = hw_to_sprd_clk_common(hw);
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return container_of(common, struct sprd_comp, common);
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}
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extern const struct clk_ops sprd_comp_ops;
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#endif /* _SPRD_COMPOSITE_H_ */
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