1// SPDX-License-Identifier: GPL-2.0
  2//
  3// Copyright (c) 2018 MediaTek Inc.
  4// Author: Weiyi Lu <weiyi.lu@mediatek.com>
  5
  6#include <linux/clk-provider.h>
  7#include <linux/of_platform.h>
  8#include <linux/platform_device.h>
  9
 10#include "clk-mtk.h"
 11#include "clk-gate.h"
 12
 13#include <dt-bindings/clock/mt8183-clk.h>
 14
 15static const struct mtk_gate_regs audio0_cg_regs = {
 16	.set_ofs = 0x0,
 17	.clr_ofs = 0x0,
 18	.sta_ofs = 0x0,
 19};
 20
 21static const struct mtk_gate_regs audio1_cg_regs = {
 22	.set_ofs = 0x4,
 23	.clr_ofs = 0x4,
 24	.sta_ofs = 0x4,
 25};
 26
 27#define GATE_AUDIO0(_id, _name, _parent, _shift)		\
 28	GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift,	\
 29		&mtk_clk_gate_ops_no_setclr)
 30
 31#define GATE_AUDIO1(_id, _name, _parent, _shift)		\
 32	GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift,	\
 33		&mtk_clk_gate_ops_no_setclr)
 34
 35static const struct mtk_gate audio_clks[] = {
 36	/* AUDIO0 */
 37	GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_sel",
 38		2),
 39	GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_eng1_sel",
 40		8),
 41	GATE_AUDIO0(CLK_AUDIO_24M, "aud_24m", "aud_eng2_sel",
 42		9),
 43	GATE_AUDIO0(CLK_AUDIO_APLL2_TUNER, "aud_apll2_tuner", "aud_eng2_sel",
 44		18),
 45	GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner", "aud_eng1_sel",
 46		19),
 47	GATE_AUDIO0(CLK_AUDIO_TDM, "aud_tdm", "apll12_divb",
 48		20),
 49	GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_sel",
 50		24),
 51	GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_sel",
 52		25),
 53	GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis", "audio_sel",
 54		26),
 55	GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_sel",
 56		27),
 57	/* AUDIO1 */
 58	GATE_AUDIO1(CLK_AUDIO_I2S1, "aud_i2s1", "audio_sel",
 59		4),
 60	GATE_AUDIO1(CLK_AUDIO_I2S2, "aud_i2s2", "audio_sel",
 61		5),
 62	GATE_AUDIO1(CLK_AUDIO_I2S3, "aud_i2s3", "audio_sel",
 63		6),
 64	GATE_AUDIO1(CLK_AUDIO_I2S4, "aud_i2s4", "audio_sel",
 65		7),
 66	GATE_AUDIO1(CLK_AUDIO_PDN_ADDA6_ADC, "aud_pdn_adda6_adc", "audio_sel",
 67		20),
 68};
 69
 70static int clk_mt8183_audio_probe(struct platform_device *pdev)
 71{
 72	struct clk_onecell_data *clk_data;
 73	int r;
 74	struct device_node *node = pdev->dev.of_node;
 75
 76	clk_data = mtk_alloc_clk_data(CLK_AUDIO_NR_CLK);
 77
 78	mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
 79			clk_data);
 80
 81	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 82	if (r)
 83		return r;
 84
 85	r = devm_of_platform_populate(&pdev->dev);
 86	if (r)
 87		of_clk_del_provider(node);
 88
 89	return r;
 90}
 91
 92static const struct of_device_id of_match_clk_mt8183_audio[] = {
 93	{ .compatible = "mediatek,mt8183-audiosys", },
 94	{}
 95};
 96
 97static struct platform_driver clk_mt8183_audio_drv = {
 98	.probe = clk_mt8183_audio_probe,
 99	.driver = {
100		.name = "clk-mt8183-audio",
101		.of_match_table = of_match_clk_mt8183_audio,
102	},
103};
104
105builtin_platform_driver(clk_mt8183_audio_drv);