1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2019 MediaTek Inc.
4  * Author: James Liao <jamesjj.liao@mediatek.com>
5  *         Fabien Parent <fparent@baylibre.com>
6  * Copyright (c) 2023 Collabora Ltd.
7  */
8 
9 #include <linux/clk-provider.h>
10 #include <linux/of.h>
11 #include <linux/of_address.h>
12 #include <linux/of_device.h>
13 #include <linux/platform_device.h>
14 
15 #include "clk-mtk.h"
16 #include "clk-gate.h"
17 
18 #include <dt-bindings/clock/mt8516-clk.h>
19 
20 static const struct mtk_gate_regs aud_cg_regs = {
21 	.set_ofs = 0x0,
22 	.clr_ofs = 0x0,
23 	.sta_ofs = 0x0,
24 };
25 
26 #define GATE_AUD(_id, _name, _parent, _shift)			\
27 	GATE_MTK(_id, _name, _parent, &aud_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
28 
29 static const struct mtk_gate aud_clks[] = {
30 	GATE_AUD(CLK_AUD_AFE, "aud_afe", "clk26m_ck", 2),
31 	GATE_AUD(CLK_AUD_I2S, "aud_i2s", "i2s_infra_bck", 6),
32 	GATE_AUD(CLK_AUD_22M, "aud_22m", "rg_aud_engen1", 8),
33 	GATE_AUD(CLK_AUD_24M, "aud_24m", "rg_aud_engen2", 9),
34 	GATE_AUD(CLK_AUD_INTDIR, "aud_intdir", "rg_aud_spdif_in", 15),
35 	GATE_AUD(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner", "rg_aud_engen2", 18),
36 	GATE_AUD(CLK_AUD_APLL_TUNER, "aud_apll_tuner", "rg_aud_engen1", 19),
37 	GATE_AUD(CLK_AUD_HDMI, "aud_hdmi", "apll12_div4", 20),
38 	GATE_AUD(CLK_AUD_SPDF, "aud_spdf", "apll12_div6", 21),
39 	GATE_AUD(CLK_AUD_ADC, "aud_adc", "aud_afe", 24),
40 	GATE_AUD(CLK_AUD_DAC, "aud_dac", "aud_afe", 25),
41 	GATE_AUD(CLK_AUD_DAC_PREDIS, "aud_dac_predis", "aud_afe", 26),
42 	GATE_AUD(CLK_AUD_TML, "aud_tml", "aud_afe", 27),
43 };
44 
45 static const struct mtk_clk_desc aud_desc = {
46 	.clks = aud_clks,
47 	.num_clks = ARRAY_SIZE(aud_clks),
48 };
49 
50 static const struct of_device_id of_match_clk_mt8516_aud[] = {
51 	{ .compatible = "mediatek,mt8516-audsys", .data = &aud_desc },
52 	{ /* sentinel */ }
53 };
54 MODULE_DEVICE_TABLE(of, of_match_clk_mt8516_aud);
55 
56 static struct platform_driver clk_mt8516_aud_drv = {
57 	.probe = mtk_clk_simple_probe,
58 	.remove = mtk_clk_simple_remove,
59 	.driver = {
60 		.name = "clk-mt8516-aud",
61 		.of_match_table = of_match_clk_mt8516_aud,
62 	},
63 };
64 module_platform_driver(clk_mt8516_aud_drv);
65 
66 MODULE_DESCRIPTION("MediaTek MT8516 audiosys clocks driver");
67 MODULE_LICENSE("GPL");
68