1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2022 MediaTek Inc.
4  * Author: Garmin Chang <garmin.chang@mediatek.com>
5  */
6 
7 #include <dt-bindings/clock/mediatek,mt8188-clk.h>
8 #include <linux/clk-provider.h>
9 #include <linux/platform_device.h>
10 
11 #include "clk-gate.h"
12 #include "clk-mtk.h"
13 
14 static const struct mtk_gate_regs ccu_cg_regs = {
15 	.set_ofs = 0x4,
16 	.clr_ofs = 0x8,
17 	.sta_ofs = 0x0,
18 };
19 
20 #define GATE_CCU(_id, _name, _parent, _shift)			\
21 	GATE_MTK(_id, _name, _parent, &ccu_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
22 
23 static const struct mtk_gate ccu_clks[] = {
24 	GATE_CCU(CLK_CCU_LARB27, "ccu_larb27", "top_ccu", 0),
25 	GATE_CCU(CLK_CCU_AHB, "ccu_ahb", "top_ccu", 1),
26 	GATE_CCU(CLK_CCU_CCU0, "ccu_ccu0", "top_ccu", 2),
27 };
28 
29 static const struct mtk_clk_desc ccu_desc = {
30 	.clks = ccu_clks,
31 	.num_clks = ARRAY_SIZE(ccu_clks),
32 };
33 
34 static const struct of_device_id of_match_clk_mt8188_ccu[] = {
35 	{ .compatible = "mediatek,mt8188-ccusys", .data = &ccu_desc },
36 	{ /* sentinel */ }
37 };
38 MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ccu);
39 
40 static struct platform_driver clk_mt8188_ccu_drv = {
41 	.probe = mtk_clk_simple_probe,
42 	.remove = mtk_clk_simple_remove,
43 	.driver = {
44 		.name = "clk-mt8188-ccu",
45 		.of_match_table = of_match_clk_mt8188_ccu,
46 	},
47 };
48 
49 module_platform_driver(clk_mt8188_ccu_drv);
50 MODULE_LICENSE("GPL");
51