1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright (c) 2021 MediaTek Inc.
4 // Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
5 
6 #include <linux/clk-provider.h>
7 #include <linux/of_device.h>
8 #include <linux/platform_device.h>
9 
10 #include "clk-mtk.h"
11 #include "clk-gate.h"
12 
13 #include <dt-bindings/clock/mt8192-clk.h>
14 
15 static const struct mtk_gate_regs vdec0_cg_regs = {
16 	.set_ofs = 0x0,
17 	.clr_ofs = 0x4,
18 	.sta_ofs = 0x0,
19 };
20 
21 static const struct mtk_gate_regs vdec1_cg_regs = {
22 	.set_ofs = 0x200,
23 	.clr_ofs = 0x204,
24 	.sta_ofs = 0x200,
25 };
26 
27 static const struct mtk_gate_regs vdec2_cg_regs = {
28 	.set_ofs = 0x8,
29 	.clr_ofs = 0xc,
30 	.sta_ofs = 0x8,
31 };
32 
33 #define GATE_VDEC0(_id, _name, _parent, _shift)	\
34 	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
35 
36 #define GATE_VDEC1(_id, _name, _parent, _shift)	\
37 	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
38 
39 #define GATE_VDEC2(_id, _name, _parent, _shift)	\
40 	GATE_MTK(_id, _name, _parent, &vdec2_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
41 
42 static const struct mtk_gate vdec_clks[] = {
43 	/* VDEC0 */
44 	GATE_VDEC0(CLK_VDEC_VDEC, "vdec_vdec", "vdec_sel", 0),
45 	GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "vdec_sel", 4),
46 	/* VDEC1 */
47 	GATE_VDEC1(CLK_VDEC_LAT, "vdec_lat", "vdec_sel", 0),
48 	GATE_VDEC1(CLK_VDEC_LAT_ACTIVE, "vdec_lat_active", "vdec_sel", 4),
49 	/* VDEC2 */
50 	GATE_VDEC2(CLK_VDEC_LARB1, "vdec_larb1", "vdec_sel", 0),
51 };
52 
53 static const struct mtk_gate vdec_soc_clks[] = {
54 	/* VDEC_SOC0 */
55 	GATE_VDEC0(CLK_VDEC_SOC_VDEC, "vdec_soc_vdec", "vdec_sel", 0),
56 	GATE_VDEC0(CLK_VDEC_SOC_VDEC_ACTIVE, "vdec_soc_vdec_active", "vdec_sel", 4),
57 	/* VDEC_SOC1 */
58 	GATE_VDEC1(CLK_VDEC_SOC_LAT, "vdec_soc_lat", "vdec_sel", 0),
59 	GATE_VDEC1(CLK_VDEC_SOC_LAT_ACTIVE, "vdec_soc_lat_active", "vdec_sel", 4),
60 	/* VDEC_SOC2 */
61 	GATE_VDEC2(CLK_VDEC_SOC_LARB1, "vdec_soc_larb1", "vdec_sel", 0),
62 };
63 
64 static const struct mtk_clk_desc vdec_desc = {
65 	.clks = vdec_clks,
66 	.num_clks = ARRAY_SIZE(vdec_clks),
67 };
68 
69 static const struct mtk_clk_desc vdec_soc_desc = {
70 	.clks = vdec_soc_clks,
71 	.num_clks = ARRAY_SIZE(vdec_soc_clks),
72 };
73 
74 static const struct of_device_id of_match_clk_mt8192_vdec[] = {
75 	{
76 		.compatible = "mediatek,mt8192-vdecsys",
77 		.data = &vdec_desc,
78 	}, {
79 		.compatible = "mediatek,mt8192-vdecsys_soc",
80 		.data = &vdec_soc_desc,
81 	}, {
82 		/* sentinel */
83 	}
84 };
85 MODULE_DEVICE_TABLE(of, of_match_clk_mt8192_vdec);
86 
87 static struct platform_driver clk_mt8192_vdec_drv = {
88 	.probe = mtk_clk_simple_probe,
89 	.remove = mtk_clk_simple_remove,
90 	.driver = {
91 		.name = "clk-mt8192-vdec",
92 		.of_match_table = of_match_clk_mt8192_vdec,
93 	},
94 };
95 module_platform_driver(clk_mt8192_vdec_drv);
96 MODULE_LICENSE("GPL");
97