609cc5e1a8
As part of the effort to improve the MediaTek clk drivers, the next step
is to switch from the old 'struct clk' clk prodivder APIs to the new
'struct clk_hw' ones.
Instead of adding new APIs to the MediaTek clk driver library mirroring
the existing ones, moving all drivers to the new APIs, and then removing
the old ones, just migrate everything at the same time. This involves
replacing 'struct clk' with 'struct clk_hw', and 'struct clk_onecell_data'
with 'struct clk_hw_onecell_data', and fixing up all usages.
For now, the clk_register() and co. usage is retained, with __clk_get_hw()
and (struct clk_hw *)->clk used to bridge the difference between the APIs.
These will be replaced in subsequent patches.
Fix up mtk_{alloc,free}_clk_data to use 'struct clk_hw' by hand. Fix up
all other affected call sites with the following coccinelle script.
// Replace type
@@
@@
- struct clk_onecell_data
+ struct clk_hw_onecell_data
// Replace of_clk_add_provider() & of_clk_src_simple_get()
@@
expression NP, DATA;
symbol of_clk_src_onecell_get;
@@
- of_clk_add_provider(
+ of_clk_add_hw_provider(
NP,
- of_clk_src_onecell_get,
+ of_clk_hw_onecell_get,
DATA
)
// Fix register/unregister
@@
identifier CD;
expression E;
identifier fn =~ "unregister";
@@
fn(...,
- CD->clks[E]
+ CD->hws[E]->clk
,...
);
// Fix calls to clk_prepare_enable()
@@
identifier CD;
expression E;
@@
clk_prepare_enable(
- CD->clks[E]
+ CD->hws[E]->clk
);
// Fix pointer assignment
@@
identifier CD;
identifier CLK;
expression E;
@@
- CD->clks[E]
+ CD->hws[E]
=
(
- CLK
+ __clk_get_hw(CLK)
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ERR_PTR(...)
)
;
// Fix pointer usage
@@
identifier CD;
expression E;
@@
- CD->clks[E]
+ CD->hws[E]
// Fix mtk_clk_pll_get_base()
@@
symbol clk, hw, data;
@@
mtk_clk_pll_get_base(
- struct clk *clk,
+ struct clk_hw *hw,
const struct mtk_pll_data *data
) {
- struct clk_hw *hw = __clk_get_hw(clk);
...
}
// Fix mtk_clk_pll_get_base() usage
@@
identifier CD;
expression E;
@@
mtk_clk_pll_get_base(
- CD->clks[E]
+ CD->hws[E]->clk
,...
);
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220519071610.423372-4-wenst@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
66 lines
1.6 KiB
C
66 lines
1.6 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_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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int mtk_clk_register_gates_with_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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struct device *dev);
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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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