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linux-stable/drivers/clk/mediatek/clk-mt2701-aud.c
AngeloGioacchino Del Regno 082b831488 clk: mediatek: clk-gate: Propagate struct device with mtk_clk_register_gates() 
[ Upstream commit 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>
Stable-dep-of: 2f7b1d8b55 ("clk: mediatek: Do a runtime PM get on controllers during probe")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-27 17:07:13 +02:00

162 lines
5.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018 MediaTek Inc.
* Author: Ryder Lee <ryder.lee@mediatek.com>
*/
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include <dt-bindings/clock/mt2701-clk.h>
#define GATE_AUDIO0(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
#define GATE_AUDIO1(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
#define GATE_AUDIO2(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &audio2_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
#define GATE_AUDIO3(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &audio3_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
static const struct mtk_gate_regs audio0_cg_regs = {
.set_ofs = 0x0,
.clr_ofs = 0x0,
.sta_ofs = 0x0,
};
static const struct mtk_gate_regs audio1_cg_regs = {
.set_ofs = 0x10,
.clr_ofs = 0x10,
.sta_ofs = 0x10,
};
static const struct mtk_gate_regs audio2_cg_regs = {
.set_ofs = 0x14,
.clr_ofs = 0x14,
.sta_ofs = 0x14,
};
static const struct mtk_gate_regs audio3_cg_regs = {
.set_ofs = 0x634,
.clr_ofs = 0x634,
.sta_ofs = 0x634,
};
static const struct mtk_gate audio_clks[] = {
/* AUDIO0 */
GATE_AUDIO0(CLK_AUD_AFE, "audio_afe", "aud_intbus_sel", 2),
GATE_AUDIO0(CLK_AUD_HDMI, "audio_hdmi", "audpll_sel", 20),
GATE_AUDIO0(CLK_AUD_SPDF, "audio_spdf", "audpll_sel", 21),
GATE_AUDIO0(CLK_AUD_SPDF2, "audio_spdf2", "audpll_sel", 22),
GATE_AUDIO0(CLK_AUD_APLL, "audio_apll", "audpll_sel", 23),
/* AUDIO1 */
GATE_AUDIO1(CLK_AUD_I2SIN1, "audio_i2sin1", "aud_mux1_sel", 0),
GATE_AUDIO1(CLK_AUD_I2SIN2, "audio_i2sin2", "aud_mux1_sel", 1),
GATE_AUDIO1(CLK_AUD_I2SIN3, "audio_i2sin3", "aud_mux1_sel", 2),
GATE_AUDIO1(CLK_AUD_I2SIN4, "audio_i2sin4", "aud_mux1_sel", 3),
GATE_AUDIO1(CLK_AUD_I2SIN5, "audio_i2sin5", "aud_mux1_sel", 4),
GATE_AUDIO1(CLK_AUD_I2SIN6, "audio_i2sin6", "aud_mux1_sel", 5),
GATE_AUDIO1(CLK_AUD_I2SO1, "audio_i2so1", "aud_mux1_sel", 6),
GATE_AUDIO1(CLK_AUD_I2SO2, "audio_i2so2", "aud_mux1_sel", 7),
GATE_AUDIO1(CLK_AUD_I2SO3, "audio_i2so3", "aud_mux1_sel", 8),
GATE_AUDIO1(CLK_AUD_I2SO4, "audio_i2so4", "aud_mux1_sel", 9),
GATE_AUDIO1(CLK_AUD_I2SO5, "audio_i2so5", "aud_mux1_sel", 10),
GATE_AUDIO1(CLK_AUD_I2SO6, "audio_i2so6", "aud_mux1_sel", 11),
GATE_AUDIO1(CLK_AUD_ASRCI1, "audio_asrci1", "asm_h_sel", 12),
GATE_AUDIO1(CLK_AUD_ASRCI2, "audio_asrci2", "asm_h_sel", 13),
GATE_AUDIO1(CLK_AUD_ASRCO1, "audio_asrco1", "asm_h_sel", 14),
GATE_AUDIO1(CLK_AUD_ASRCO2, "audio_asrco2", "asm_h_sel", 15),
GATE_AUDIO1(CLK_AUD_INTDIR, "audio_intdir", "intdir_sel", 20),
GATE_AUDIO1(CLK_AUD_A1SYS, "audio_a1sys", "aud_mux1_sel", 21),
GATE_AUDIO1(CLK_AUD_A2SYS, "audio_a2sys", "aud_mux2_sel", 22),
GATE_AUDIO1(CLK_AUD_AFE_CONN, "audio_afe_conn", "aud_mux1_sel", 23),
GATE_AUDIO1(CLK_AUD_AFE_MRGIF, "audio_afe_mrgif", "aud_mux1_sel", 25),
/* AUDIO2 */
GATE_AUDIO2(CLK_AUD_MMIF_UL1, "audio_ul1", "aud_mux1_sel", 0),
GATE_AUDIO2(CLK_AUD_MMIF_UL2, "audio_ul2", "aud_mux1_sel", 1),
GATE_AUDIO2(CLK_AUD_MMIF_UL3, "audio_ul3", "aud_mux1_sel", 2),
GATE_AUDIO2(CLK_AUD_MMIF_UL4, "audio_ul4", "aud_mux1_sel", 3),
GATE_AUDIO2(CLK_AUD_MMIF_UL5, "audio_ul5", "aud_mux1_sel", 4),
GATE_AUDIO2(CLK_AUD_MMIF_UL6, "audio_ul6", "aud_mux1_sel", 5),
GATE_AUDIO2(CLK_AUD_MMIF_DL1, "audio_dl1", "aud_mux1_sel", 6),
GATE_AUDIO2(CLK_AUD_MMIF_DL2, "audio_dl2", "aud_mux1_sel", 7),
GATE_AUDIO2(CLK_AUD_MMIF_DL3, "audio_dl3", "aud_mux1_sel", 8),
GATE_AUDIO2(CLK_AUD_MMIF_DL4, "audio_dl4", "aud_mux1_sel", 9),
GATE_AUDIO2(CLK_AUD_MMIF_DL5, "audio_dl5", "aud_mux1_sel", 10),
GATE_AUDIO2(CLK_AUD_MMIF_DL6, "audio_dl6", "aud_mux1_sel", 11),
GATE_AUDIO2(CLK_AUD_MMIF_DLMCH, "audio_dlmch", "aud_mux1_sel", 12),
GATE_AUDIO2(CLK_AUD_MMIF_ARB1, "audio_arb1", "aud_mux1_sel", 13),
GATE_AUDIO2(CLK_AUD_MMIF_AWB1, "audio_awb", "aud_mux1_sel", 14),
GATE_AUDIO2(CLK_AUD_MMIF_AWB2, "audio_awb2", "aud_mux1_sel", 15),
GATE_AUDIO2(CLK_AUD_MMIF_DAI, "audio_dai", "aud_mux1_sel", 16),
/* AUDIO3 */
GATE_AUDIO3(CLK_AUD_ASRCI3, "audio_asrci3", "asm_h_sel", 2),
GATE_AUDIO3(CLK_AUD_ASRCI4, "audio_asrci4", "asm_h_sel", 3),
GATE_AUDIO3(CLK_AUD_ASRCI5, "audio_asrci5", "asm_h_sel", 4),
GATE_AUDIO3(CLK_AUD_ASRCI6, "audio_asrci6", "asm_h_sel", 5),
GATE_AUDIO3(CLK_AUD_ASRCO3, "audio_asrco3", "asm_h_sel", 6),
GATE_AUDIO3(CLK_AUD_ASRCO4, "audio_asrco4", "asm_h_sel", 7),
GATE_AUDIO3(CLK_AUD_ASRCO5, "audio_asrco5", "asm_h_sel", 8),
GATE_AUDIO3(CLK_AUD_ASRCO6, "audio_asrco6", "asm_h_sel", 9),
GATE_AUDIO3(CLK_AUD_MEM_ASRC1, "audio_mem_asrc1", "asm_h_sel", 10),
GATE_AUDIO3(CLK_AUD_MEM_ASRC2, "audio_mem_asrc2", "asm_h_sel", 11),
GATE_AUDIO3(CLK_AUD_MEM_ASRC3, "audio_mem_asrc3", "asm_h_sel", 12),
GATE_AUDIO3(CLK_AUD_MEM_ASRC4, "audio_mem_asrc4", "asm_h_sel", 13),
GATE_AUDIO3(CLK_AUD_MEM_ASRC5, "audio_mem_asrc5", "asm_h_sel", 14),
};
static const struct of_device_id of_match_clk_mt2701_aud[] = {
{ .compatible = "mediatek,mt2701-audsys", },
{}
};
static int clk_mt2701_aud_probe(struct platform_device *pdev)
{
struct clk_hw_onecell_data *clk_data;
struct device_node *node = pdev->dev.of_node;
int r;
clk_data = mtk_alloc_clk_data(CLK_AUD_NR);
mtk_clk_register_gates(&pdev->dev, node, audio_clks,
ARRAY_SIZE(audio_clks), clk_data);
r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (r) {
dev_err(&pdev->dev,
"could not register clock provider: %s: %d\n",
pdev->name, r);
goto err_clk_provider;
}
r = devm_of_platform_populate(&pdev->dev);
if (r)
goto err_plat_populate;
return 0;
err_plat_populate:
of_clk_del_provider(node);
err_clk_provider:
return r;
}
static struct platform_driver clk_mt2701_aud_drv = {
.probe = clk_mt2701_aud_probe,
.driver = {
.name = "clk-mt2701-aud",
.of_match_table = of_match_clk_mt2701_aud,
},
};
builtin_platform_driver(clk_mt2701_aud_drv);
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