1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2019 MediaTek Inc.
4 * Author: Wendell Lin <wendell.lin@mediatek.com>
5 */
6
7#include <linux/module.h>
8#include <linux/clk-provider.h>
9#include <linux/mod_devicetable.h>
10#include <linux/platform_device.h>
11
12#include "clk-mtk.h"
13#include "clk-gate.h"
14
15#include <dt-bindings/clock/mt6779-clk.h>
16
17static const struct mtk_gate_regs audio0_cg_regs = {
18 .set_ofs = 0x0,
19 .clr_ofs = 0x0,
20 .sta_ofs = 0x0,
21};
22
23static const struct mtk_gate_regs audio1_cg_regs = {
24 .set_ofs = 0x4,
25 .clr_ofs = 0x4,
26 .sta_ofs = 0x4,
27};
28
29#define GATE_AUDIO0(_id, _name, _parent, _shift) \
30 GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift, \
31 &mtk_clk_gate_ops_no_setclr)
32#define GATE_AUDIO1(_id, _name, _parent, _shift) \
33 GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift, \
34 &mtk_clk_gate_ops_no_setclr)
35
36static const struct mtk_gate audio_clks[] = {
37 /* AUDIO0 */
38 GATE_AUDIO0(CLK_AUD_AFE, "aud_afe", "audio_sel", 2),
39 GATE_AUDIO0(CLK_AUD_22M, "aud_22m", "aud_eng1_sel", 8),
40 GATE_AUDIO0(CLK_AUD_24M, "aud_24m", "aud_eng2_sel", 9),
41 GATE_AUDIO0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner",
42 "aud_eng2_sel", 18),
43 GATE_AUDIO0(CLK_AUD_APLL_TUNER, "aud_apll_tuner",
44 "aud_eng1_sel", 19),
45 GATE_AUDIO0(CLK_AUD_TDM, "aud_tdm", "aud_eng1_sel", 20),
46 GATE_AUDIO0(CLK_AUD_ADC, "aud_adc", "audio_sel", 24),
47 GATE_AUDIO0(CLK_AUD_DAC, "aud_dac", "audio_sel", 25),
48 GATE_AUDIO0(CLK_AUD_DAC_PREDIS, "aud_dac_predis",
49 "audio_sel", 26),
50 GATE_AUDIO0(CLK_AUD_TML, "aud_tml", "audio_sel", 27),
51 GATE_AUDIO0(CLK_AUD_NLE, "aud_nle", "audio_sel", 28),
52 /* AUDIO1 */
53 GATE_AUDIO1(CLK_AUD_I2S1_BCLK_SW, "aud_i2s1_bclk",
54 "audio_sel", 4),
55 GATE_AUDIO1(CLK_AUD_I2S2_BCLK_SW, "aud_i2s2_bclk",
56 "audio_sel", 5),
57 GATE_AUDIO1(CLK_AUD_I2S3_BCLK_SW, "aud_i2s3_bclk",
58 "audio_sel", 6),
59 GATE_AUDIO1(CLK_AUD_I2S4_BCLK_SW, "aud_i2s4_bclk",
60 "audio_sel", 7),
61 GATE_AUDIO1(CLK_AUD_I2S5_BCLK_SW, "aud_i2s5_bclk",
62 "audio_sel", 8),
63 GATE_AUDIO1(CLK_AUD_CONN_I2S_ASRC, "aud_conn_i2s",
64 "audio_sel", 12),
65 GATE_AUDIO1(CLK_AUD_GENERAL1_ASRC, "aud_general1",
66 "audio_sel", 13),
67 GATE_AUDIO1(CLK_AUD_GENERAL2_ASRC, "aud_general2",
68 "audio_sel", 14),
69 GATE_AUDIO1(CLK_AUD_DAC_HIRES, "aud_dac_hires",
70 "audio_h_sel", 15),
71 GATE_AUDIO1(CLK_AUD_ADC_HIRES, "aud_adc_hires",
72 "audio_h_sel", 16),
73 GATE_AUDIO1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml",
74 "audio_h_sel", 17),
75 GATE_AUDIO1(CLK_AUD_PDN_ADDA6_ADC, "aud_pdn_adda6_adc",
76 "audio_sel", 20),
77 GATE_AUDIO1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires",
78 "audio_h_sel",
79 21),
80 GATE_AUDIO1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "audio_sel",
81 28),
82 GATE_AUDIO1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis",
83 "audio_sel", 29),
84 GATE_AUDIO1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml",
85 "audio_sel", 30),
86 GATE_AUDIO1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires",
87 "audio_h_sel", 31),
88};
89
90static const struct mtk_clk_desc audio_desc = {
91 .clks = audio_clks,
92 .num_clks = ARRAY_SIZE(audio_clks),
93};
94
95static const struct of_device_id of_match_clk_mt6779_aud[] = {
96 {
97 .compatible = "mediatek,mt6779-audio",
98 .data = &audio_desc,
99 }, {
100 /* sentinel */
101 }
102};
103MODULE_DEVICE_TABLE(of, of_match_clk_mt6779_aud);
104
105static struct platform_driver clk_mt6779_aud_drv = {
106 .probe = mtk_clk_simple_probe,
107 .remove_new = mtk_clk_simple_remove,
108 .driver = {
109 .name = "clk-mt6779-aud",
110 .of_match_table = of_match_clk_mt6779_aud,
111 },
112};
113
114module_platform_driver(clk_mt6779_aud_drv);
115MODULE_LICENSE("GPL");
116

source code of linux/drivers/clk/mediatek/clk-mt6779-aud.c