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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.
In a previous patch, 'struct clk_onecell_data' was replaced with
'struct clk_hw_onecell_data', with (struct clk_hw *)->clk and
__clk_get_hw() bridging the new data structures and old code.
Now switch from the old 'clk_(un)?register*()' APIs to the new
'clk_hw_(un)?register*()' ones. This is done with the coccinelle script
below.
Unfortunately this also leaves clk-mt8173.c with a compile error that
would need a coccinelle script longer than the actual diff to fix. This
last part is fixed up by hand.
// Fix prototypes
@@
identifier F =~ "^mtk_clk_register_";
@@
- struct clk *
+ struct clk_hw *
F(...);
// Fix calls to mtk_clk_register_<singular>
@ reg @
identifier F =~ "^mtk_clk_register_";
identifier FS =~ "^mtk_clk_register_[a-z_]*s";
identifier I;
expression clk_data;
expression E;
@@
FS(...) {
...
- struct clk *I;
+ struct clk_hw *hw;
...
for (...;...;...) {
...
(
- I
+ hw
=
- clk_register_fixed_rate(
+ clk_hw_register_fixed_rate(
...
);
|
- I
+ hw
=
- clk_register_fixed_factor(
+ clk_hw_register_fixed_factor(
...
);
|
- I
+ hw
=
- clk_register_divider(
+ clk_hw_register_divider(
...
);
|
- I
+ hw
=
F(...);
)
...
if (
- IS_ERR(I)
+ IS_ERR(hw)
) {
pr_err(...,
- I
+ hw
,...);
...
}
- clk_data->hws[E] = __clk_get_hw(I);
+ clk_data->hws[E] = hw;
}
...
}
@ depends on reg @
identifier reg.I;
@@
return PTR_ERR(
- I
+ hw
);
// Fix mtk_clk_register_composite to return clk_hw instead of clk
@@
identifier I, R;
expression E;
@@
- struct clk *
+ struct clk_hw *
mtk_clk_register_composite(...) {
...
- struct clk *I;
+ struct clk_hw *hw;
...
- I = clk_register_composite(
+ hw = clk_hw_register_composite(
...);
if (IS_ERR(
- I
+ hw
)) {
...
R = PTR_ERR(
- I
+ hw
);
...
}
return
- I
+ hw
;
...
}
// Fix other mtk_clk_register_<singular> to return clk_hw instead of clk
@@
identifier F =~ "^mtk_clk_register_";
identifier I, D, C;
expression E;
@@
- struct clk *
+ struct clk_hw *
F(...) {
...
- struct clk *I;
+ int ret;
...
- I = clk_register(D, E);
+ ret = clk_hw_register(D, E);
...
(
- if (IS_ERR(I))
+ if (ret) {
kfree(C);
+ return ERR_PTR(ret);
+ }
|
- if (IS_ERR(I))
+ if (ret)
{
kfree(C);
- return I;
+ return ERR_PTR(ret);
}
)
- return I;
+ return E;
}
// Fix mtk_clk_unregister_<singular> to take clk_hw instead of clk
@@
identifier F =~ "^mtk_clk_unregister_";
identifier I, I2;
@@
static void F(
- struct clk *I
+ struct clk_hw *I2
)
{
...
- struct clk_hw *I2;
...
- I2 = __clk_get_hw(I);
...
(
- clk_unregister(I);
+ clk_hw_unregister(I2);
|
- clk_unregister_composite(I);
+ clk_hw_unregister_composite(I2);
)
...
}
// Fix calls to mtk_clk_unregister_*()
@@
identifier F =~ "^mtk_clk_unregister_";
expression I;
expression E;
@@
- F(I->hws[E]->clk);
+ F(I->hws[E]);
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220519071610.423372-5-wenst@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
mtk_clk_register_ref2usb_tx() prints an error message if clk_register()
fails. It doesn't if kzalloc() fails though. The caller would then tack
on its own error message to handle this.
Also, All other clk registration functions in the MediaTek clk library
leave the error message printing to the bulk registration functions,
while the helpers that register individual clks just return error codes.
Drop the error message that is printed when clk_register() fails in
mtk_clk_register_ref2usb_tx() to make its behavior consistent both
across its failure modes, and with the rest of the driver library.
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220519071610.423372-3-wenst@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
If %pe is used to print errors, a string representation of the error
would be printed instead of a number as with %ld. Also, all the sites
printing errors are deriving the error code from a pointer. Using %pe
is more straightforward.
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220208124034.414635-2-wenst@chromium.org
Reviewed-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
To support COMMON_CLK_MEDIATEK module build,
add MODULE_LICENSE and export necessary symbols.
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Hanks Chen <hanks.chen@mediatek.com>
Cc: Wendell Lin <wendell.lin@mediatek.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210901222526.31065-3-miles.chen@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 655 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add REF2USB_TX clock support into MT8173 APMIXEDSYS. This clock
is needed by USB 3.0.
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
