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20498d52c9
Commit e4c23e19aa ("clk: mediatek: Register clock gate with device")
introduces a helper function for the sole purpose of propagating a
struct device pointer to the clk API when registering the mtk-gate
clocks to take advantage of Runtime PM when/where needed and where
a power domain is defined in devicetree.
Function mtk_clk_register_gates() then becomes a wrapper around the
new mtk_clk_register_gates_with_dev() function that will simply pass
NULL as struct device: this is essential when registering drivers
with CLK_OF_DECLARE instead of as a platform device, as there will
be no struct device to pass... but we can as well simply have only
one function that always takes such pointer as a param and pass NULL
when unavoidable.
This commit removes the mtk_clk_register_gates() wrapper and renames
mtk_clk_register_gates_with_dev() to the former and all of the calls
to either of the two functions were fixed in all drivers in order to
reflect this change; also, to improve consistency with other kernel
functions, the pointer to struct device was moved as the first param.
Since a lot of MediaTek clock drivers are actually registering as a
platform device, but were still registering the mtk-gate clocks
without passing any struct device to the clock framework, they've
been changed to pass a valid one now, as to make all those platforms
able to use runtime power management where available.
While at it, some much needed indentation changes were also done.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20230120092053.182923-4-angelogioacchino.delregno@collabora.com
Tested-by: Mingming Su <mingming.su@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014 MediaTek Inc.
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* Author: James Liao <jamesjj.liao@mediatek.com>
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*/
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#ifndef __DRV_CLK_GATE_H
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#define __DRV_CLK_GATE_H
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#include <linux/types.h>
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struct clk;
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struct clk_hw_onecell_data;
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struct clk_ops;
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struct device;
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struct device_node;
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extern const struct clk_ops mtk_clk_gate_ops_setclr;
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extern const struct clk_ops mtk_clk_gate_ops_setclr_inv;
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extern const struct clk_ops mtk_clk_gate_ops_no_setclr;
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extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv;
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struct mtk_gate_regs {
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u32 sta_ofs;
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u32 clr_ofs;
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u32 set_ofs;
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};
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struct mtk_gate {
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int id;
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const char *name;
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const char *parent_name;
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const struct mtk_gate_regs *regs;
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int shift;
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const struct clk_ops *ops;
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unsigned long flags;
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};
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#define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, \
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_ops, _flags) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = _regs, \
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.shift = _shift, \
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.ops = _ops, \
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.flags = _flags, \
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}
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#define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops) \
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GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
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int mtk_clk_register_gates(struct device *dev, struct device_node *node,
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const struct mtk_gate *clks, int num,
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struct clk_hw_onecell_data *clk_data);
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void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num,
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struct clk_hw_onecell_data *clk_data);
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#endif /* __DRV_CLK_GATE_H */
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