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/platform_device.h>
10 
11 #include "clk-mtk.h"
12 #include "clk-gate.h"
13 
14 #include <dt-bindings/clock/mt6779-clk.h>
15 
16 static const struct mtk_gate_regs vdec0_cg_regs = {
17 	.set_ofs = 0x0000,
18 	.clr_ofs = 0x0004,
19 	.sta_ofs = 0x0000,
20 };
21 
22 static const struct mtk_gate_regs vdec1_cg_regs = {
23 	.set_ofs = 0x0008,
24 	.clr_ofs = 0x000c,
25 	.sta_ofs = 0x0008,
26 };
27 
28 #define GATE_VDEC0_I(_id, _name, _parent, _shift)		\
29 	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift,	\
30 		&mtk_clk_gate_ops_setclr_inv)
31 #define GATE_VDEC1_I(_id, _name, _parent, _shift)		\
32 	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift,	\
33 		&mtk_clk_gate_ops_setclr_inv)
34 
35 static const struct mtk_gate vdec_clks[] = {
36 	/* VDEC0 */
37 	GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_cken", "vdec_sel", 0),
38 	/* VDEC1 */
39 	GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1_cken", "vdec_sel", 0),
40 };
41 
42 static const struct mtk_clk_desc vdec_desc = {
43 	.clks = vdec_clks,
44 	.num_clks = ARRAY_SIZE(vdec_clks),
45 };
46 
47 static const struct of_device_id of_match_clk_mt6779_vdec[] = {
48 	{
49 		.compatible = "mediatek,mt6779-vdecsys",
50 		.data = &vdec_desc,
51 	}, {
52 		/* sentinel */
53 	}
54 };
55 MODULE_DEVICE_TABLE(of, of_match_clk_mt6779_vdec);
56 
57 static struct platform_driver clk_mt6779_vdec_drv = {
58 	.probe = mtk_clk_simple_probe,
59 	.remove = mtk_clk_simple_remove,
60 	.driver = {
61 		.name = "clk-mt6779-vdec",
62 		.of_match_table = of_match_clk_mt6779_vdec,
63 	},
64 };
65 
66 module_platform_driver(clk_mt6779_vdec_drv);
67 MODULE_LICENSE("GPL");
68