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 
15 static const struct mtk_gate_regs audio0_cg_regs = {
16 	.set_ofs = 0x0,
17 	.clr_ofs = 0x0,
18 	.sta_ofs = 0x0,
19 };
20 
21 static 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 
33 static 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 
55 static const struct mtk_clk_desc audio_desc = {
56 	.clks = audio_clks,
57 	.num_clks = ARRAY_SIZE(audio_clks),
58 };
59 
60 static 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 };
68 MODULE_DEVICE_TABLE(of, of_match_clk_mt6765_audio);
69 
70 static struct platform_driver clk_mt6765_audio_drv = {
71 	.probe = mtk_clk_simple_probe,
72 	.remove = mtk_clk_simple_remove,
73 	.driver = {
74 		.name = "clk-mt6765-audio",
75 		.of_match_table = of_match_clk_mt6765_audio,
76 	},
77 };
78 module_platform_driver(clk_mt6765_audio_drv);
79 MODULE_LICENSE("GPL");
80