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 <linux/clk-provider.h>
8 #include <linux/mod_devicetable.h>
9 #include <linux/platform_device.h>
10 
11 #include <dt-bindings/clock/mediatek,mt8188-clk.h>
12 
13 #include "clk-gate.h"
14 #include "clk-mtk.h"
15 
16 static const struct mtk_gate_regs imp_iic_wrap_cg_regs = {
17 	.set_ofs = 0xe08,
18 	.clr_ofs = 0xe04,
19 	.sta_ofs = 0xe00,
20 };
21 
22 #define GATE_IMP_IIC_WRAP(_id, _name, _parent, _shift)			\
23 	GATE_MTK_FLAGS(_id, _name, _parent, &imp_iic_wrap_cg_regs, _shift,			\
24 		&mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE)
25 
26 static const struct mtk_gate imp_iic_wrap_c_clks[] = {
27 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C0,
28 			  "imp_iic_wrap_c_ap_clock_i2c0", "top_i2c", 0),
29 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C2,
30 			  "imp_iic_wrap_c_ap_clock_i2c2", "top_i2c", 1),
31 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C3,
32 			  "imp_iic_wrap_c_ap_clock_i2c3", "top_i2c", 2),
33 };
34 
35 static const struct mtk_gate imp_iic_wrap_w_clks[] = {
36 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C1,
37 			  "imp_iic_wrap_w_ap_clock_i2c1", "top_i2c", 0),
38 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C4,
39 			  "imp_iic_wrap_w_ap_clock_i2c4", "top_i2c", 1),
40 };
41 
42 static const struct mtk_gate imp_iic_wrap_en_clks[] = {
43 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C5,
44 			  "imp_iic_wrap_en_ap_clock_i2c5", "top_i2c", 0),
45 	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C6,
46 			  "imp_iic_wrap_en_ap_clock_i2c6", "top_i2c", 1),
47 };
48 
49 static const struct mtk_clk_desc imp_iic_wrap_c_desc = {
50 	.clks = imp_iic_wrap_c_clks,
51 	.num_clks = ARRAY_SIZE(imp_iic_wrap_c_clks),
52 };
53 
54 static const struct mtk_clk_desc imp_iic_wrap_w_desc = {
55 	.clks = imp_iic_wrap_w_clks,
56 	.num_clks = ARRAY_SIZE(imp_iic_wrap_w_clks),
57 };
58 
59 static const struct mtk_clk_desc imp_iic_wrap_en_desc = {
60 	.clks = imp_iic_wrap_en_clks,
61 	.num_clks = ARRAY_SIZE(imp_iic_wrap_en_clks),
62 };
63 
64 static const struct of_device_id of_match_clk_mt8188_imp_iic_wrap[] = {
65 	{ .compatible = "mediatek,mt8188-imp-iic-wrap-c", .data = &imp_iic_wrap_c_desc },
66 	{ .compatible = "mediatek,mt8188-imp-iic-wrap-w", .data = &imp_iic_wrap_w_desc },
67 	{ .compatible = "mediatek,mt8188-imp-iic-wrap-en", .data = &imp_iic_wrap_en_desc },
68 	{ /* sentinel */ }
69 };
70 MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_imp_iic_wrap);
71 
72 static struct platform_driver clk_mt8188_imp_iic_wrap_drv = {
73 	.probe = mtk_clk_simple_probe,
74 	.remove = mtk_clk_simple_remove,
75 	.driver = {
76 		.name = "clk-mt8188-imp_iic_wrap",
77 		.of_match_table = of_match_clk_mt8188_imp_iic_wrap,
78 	},
79 };
80 
81 module_platform_driver(clk_mt8188_imp_iic_wrap_drv);
82 MODULE_LICENSE("GPL");
83