1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2014 MediaTek Inc.
4  * Copyright (c) 2022 Collabora Ltd.
5  * Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
6  */
7 
8 #include <dt-bindings/clock/mt8173-clk.h>
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include "clk-gate.h"
12 #include "clk-mtk.h"
13 
14 #define GATE_VDEC(_id, _name, _parent, _regs)			\
15 		GATE_MTK(_id, _name, _parent, _regs, 0,		\
16 			 &mtk_clk_gate_ops_setclr_inv)
17 
18 static const struct mtk_gate_regs vdec0_cg_regs = {
19 	.set_ofs = 0x0000,
20 	.clr_ofs = 0x0004,
21 	.sta_ofs = 0x0000,
22 };
23 
24 static const struct mtk_gate_regs vdec1_cg_regs = {
25 	.set_ofs = 0x0008,
26 	.clr_ofs = 0x000c,
27 	.sta_ofs = 0x0008,
28 };
29 
30 static const struct mtk_gate vdec_clks[] = {
31 	GATE_DUMMY(CLK_DUMMY, "vdec_dummy"),
32 	GATE_VDEC(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", &vdec0_cg_regs),
33 	GATE_VDEC(CLK_VDEC_LARB_CKEN, "vdec_larb_cken", "mm_sel", &vdec1_cg_regs),
34 };
35 
36 static const struct mtk_clk_desc vdec_desc = {
37 	.clks = vdec_clks,
38 	.num_clks = ARRAY_SIZE(vdec_clks),
39 };
40 
41 static const struct of_device_id of_match_clk_mt8173_vdecsys[] = {
42 	{ .compatible = "mediatek,mt8173-vdecsys", .data = &vdec_desc },
43 	{ /* sentinel */ }
44 };
45 MODULE_DEVICE_TABLE(of, of_match_clk_mt8173_vdecsys);
46 
47 static struct platform_driver clk_mt8173_vdecsys_drv = {
48 	.probe = mtk_clk_simple_probe,
49 	.remove_new = mtk_clk_simple_remove,
50 	.driver = {
51 		.name = "clk-mt8173-vdecsys",
52 		.of_match_table = of_match_clk_mt8173_vdecsys,
53 	},
54 };
55 module_platform_driver(clk_mt8173_vdecsys_drv);
56 
57 MODULE_DESCRIPTION("MediaTek MT8173 vdecsys clocks driver");
58 MODULE_LICENSE("GPL");
59