1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2018 MediaTek Inc.
4 * Author: Owen Chen <owen.chen@mediatek.com>
5 */
6
7#include <linux/clk-provider.h>
8#include <linux/platform_device.h>
9
10#include "clk-mtk.h"
11#include "clk-gate.h"
12
13#include <dt-bindings/clock/mt6765-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, &mtk_clk_gate_ops_no_setclr)
29
30#define GATE_AUDIO1(_id, _name, _parent, _shift) \
31 GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
32
33static const struct mtk_gate audio_clks[] = {
34 /* AUDIO0 */
35 GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_ck", 2),
36 GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_engen1_ck", 8),
37 GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner",
38 "aud_engen1_ck", 19),
39 GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_ck", 24),
40 GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_ck", 25),
41 GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis",
42 "audio_ck", 26),
43 GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_ck", 27),
44 /* AUDIO1 */
45 GATE_AUDIO1(CLK_AUDIO_I2S1_BCLK, "aud_i2s1_bclk",
46 "audio_ck", 4),
47 GATE_AUDIO1(CLK_AUDIO_I2S2_BCLK, "aud_i2s2_bclk",
48 "audio_ck", 5),
49 GATE_AUDIO1(CLK_AUDIO_I2S3_BCLK, "aud_i2s3_bclk",
50 "audio_ck", 6),
51 GATE_AUDIO1(CLK_AUDIO_I2S4_BCLK, "aud_i2s4_bclk",
52 "audio_ck", 7),
53};
54
55static const struct mtk_clk_desc audio_desc = {
56 .clks = audio_clks,
57 .num_clks = ARRAY_SIZE(audio_clks),
58};
59
60static const struct of_device_id of_match_clk_mt6765_audio[] = {
61 {
62 .compatible = "mediatek,mt6765-audsys",
63 .data = &audio_desc,
64 }, {
65 /* sentinel */
66 }
67};
68MODULE_DEVICE_TABLE(of, of_match_clk_mt6765_audio);
69
70static struct platform_driver clk_mt6765_audio_drv = {
71 .probe = mtk_clk_simple_probe,
72 .remove_new = mtk_clk_simple_remove,
73 .driver = {
74 .name = "clk-mt6765-audio",
75 .of_match_table = of_match_clk_mt6765_audio,
76 },
77};
78module_platform_driver(clk_mt6765_audio_drv);
79MODULE_LICENSE("GPL");
80

source code of linux/drivers/clk/mediatek/clk-mt6765-audio.c