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 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 
25 static 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 */
34 static u16 ipe_sys_rst_ofs[] = {
35 	IPE_SYS_SMI_LARB_RST_OFF,
36 };
37 
38 static 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 
44 static 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 
50 static const struct of_device_id of_match_clk_mt8188_ipe[] = {
51 	{ .compatible = "mediatek,mt8188-ipesys", .data = &ipe_desc },
52 	{ /* sentinel */ }
53 };
54 MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ipe);
55 
56 static 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 
65 module_platform_driver(clk_mt8188_ipe_drv);
66 
67 MODULE_DESCRIPTION("MediaTek MT8188 Image Processing Engine clocks driver");
68 MODULE_LICENSE("GPL");
69