clk-mt8195-ccu.c

 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 "clk-gate.h"
 7#include "clk-mtk.h"
 8
 9#include <dt-bindings/clock/mt8195-clk.h>
10#include <linux/clk-provider.h>
11#include <linux/platform_device.h>
12
13static const struct mtk_gate_regs ccu_cg_regs = {
14	.set_ofs = 0x4,
15	.clr_ofs = 0x8,
16	.sta_ofs = 0x0,
17};
18
19#define GATE_CCU(_id, _name, _parent, _shift)			\
20	GATE_MTK(_id, _name, _parent, &ccu_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
21
22static const struct mtk_gate ccu_clks[] = {
23	GATE_CCU(CLK_CCU_LARB18, "ccu_larb18", "top_ccu", 0),
24	GATE_CCU(CLK_CCU_AHB, "ccu_ahb", "top_ccu", 1),
25	GATE_CCU(CLK_CCU_CCU0, "ccu_ccu0", "top_ccu", 2),
26	GATE_CCU(CLK_CCU_CCU1, "ccu_ccu1", "top_ccu", 3),
27};
28
29static const struct mtk_clk_desc ccu_desc = {
30	.clks = ccu_clks,
31	.num_clks = ARRAY_SIZE(ccu_clks),
32};
33
34static const struct of_device_id of_match_clk_mt8195_ccu[] = {
35	{
36		.compatible = "mediatek,mt8195-ccusys",
37		.data = &ccu_desc,
38	}, {
39		/* sentinel */
40	}
41};
42MODULE_DEVICE_TABLE(of, of_match_clk_mt8195_ccu);
43
44static struct platform_driver clk_mt8195_ccu_drv = {
45	.probe = mtk_clk_simple_probe,
46	.remove = mtk_clk_simple_remove,
47	.driver = {
48		.name = "clk-mt8195-ccu",
49		.of_match_table = of_match_clk_mt8195_ccu,
50	},
51};
52module_platform_driver(clk_mt8195_ccu_drv);
53
54MODULE_DESCRIPTION("MediaTek MT8195 Camera Control Unit clocks driver");
55MODULE_LICENSE("GPL");