clk-mt8188-ipe.c

 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
14static const struct mtk_gate_regs ipe_cg_regs = {
15	.set_ofs = 0x4,
16	.clr_ofs = 0x8,
17	.sta_ofs = 0x0,
18};
19
20#define GATE_IPE(_id, _name, _parent, _shift)			\
21	GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
22
23#define IPE_SYS_SMI_LARB_RST_OFF	(0xC)
24
25static const struct mtk_gate ipe_clks[] = {
26	GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "top_ipe", 0),
27	GATE_IPE(CLK_IPE_FDVT, "ipe_fdvt", "top_ipe", 1),
28	GATE_IPE(CLK_IPE_ME, "ipe_me", "top_ipe", 2),
29	GATE_IPE(CLK_IPESYS_TOP, "ipesys_top", "top_ipe", 3),
30	GATE_IPE(CLK_IPE_SMI_LARB12, "ipe_smi_larb12", "top_ipe", 4),
31};
32
33/* Reset for SMI larb 12 */
34static u16 ipe_sys_rst_ofs[] = {
35	IPE_SYS_SMI_LARB_RST_OFF,
36};
37
38static const struct mtk_clk_rst_desc ipe_sys_rst_desc = {
39	.version = MTK_RST_SIMPLE,
40	.rst_bank_ofs = ipe_sys_rst_ofs,
41	.rst_bank_nr = ARRAY_SIZE(ipe_sys_rst_ofs),
42};
43
44static const struct mtk_clk_desc ipe_desc = {
45	.clks = ipe_clks,
46	.num_clks = ARRAY_SIZE(ipe_clks),
47	.rst_desc = &ipe_sys_rst_desc,
48};
49
50static const struct of_device_id of_match_clk_mt8188_ipe[] = {
51	{ .compatible = "mediatek,mt8188-ipesys", .data = &ipe_desc },
52	{ /* sentinel */ }
53};
54MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ipe);
55
56static struct platform_driver clk_mt8188_ipe_drv = {
57	.probe = mtk_clk_simple_probe,
58	.remove = mtk_clk_simple_remove,
59	.driver = {
60		.name = "clk-mt8188-ipe",
61		.of_match_table = of_match_clk_mt8188_ipe,
62	},
63};
64
65module_platform_driver(clk_mt8188_ipe_drv);
66
67MODULE_DESCRIPTION("MediaTek MT8188 Image Processing Engine clocks driver");
68MODULE_LICENSE("GPL");