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1aca9939 OC |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * Copyright (c) 2018 MediaTek Inc. | |
4 | * Author: Owen Chen <owen.chen@mediatek.com> | |
5 | */ | |
6 | ||
7 | #include <linux/clk-provider.h> | |
8 | #include <linux/platform_device.h> | |
9 | ||
10 | #include "clk-mtk.h" | |
11 | #include "clk-gate.h" | |
12 | ||
13 | #include <dt-bindings/clock/mt6765-clk.h> | |
14 | ||
15 | static const struct mtk_gate_regs img_cg_regs = { | |
16 | .set_ofs = 0x4, | |
17 | .clr_ofs = 0x8, | |
18 | .sta_ofs = 0x0, | |
19 | }; | |
20 | ||
21 | #define GATE_IMG(_id, _name, _parent, _shift) { \ | |
22 | .id = _id, \ | |
23 | .name = _name, \ | |
24 | .parent_name = _parent, \ | |
25 | .regs = &img_cg_regs, \ | |
26 | .shift = _shift, \ | |
27 | .ops = &mtk_clk_gate_ops_setclr, \ | |
28 | } | |
29 | ||
30 | static const struct mtk_gate img_clks[] = { | |
31 | GATE_IMG(CLK_IMG_LARB2, "img_larb2", "mm_ck", 0), | |
32 | GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_ck", 2), | |
33 | GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_ck", 3), | |
34 | GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_ck", 4), | |
35 | GATE_IMG(CLK_IMG_RSC, "img_rsc", "mm_ck", 5), | |
36 | }; | |
37 | ||
38 | static int clk_mt6765_img_probe(struct platform_device *pdev) | |
39 | { | |
40 | struct clk_onecell_data *clk_data; | |
41 | int r; | |
42 | struct device_node *node = pdev->dev.of_node; | |
43 | ||
44 | clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK); | |
45 | ||
46 | mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), clk_data); | |
47 | ||
48 | r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); | |
49 | ||
50 | if (r) | |
51 | pr_err("%s(): could not register clock provider: %d\n", | |
52 | __func__, r); | |
53 | ||
54 | return r; | |
55 | } | |
56 | ||
57 | static const struct of_device_id of_match_clk_mt6765_img[] = { | |
58 | { .compatible = "mediatek,mt6765-imgsys", }, | |
59 | {} | |
60 | }; | |
61 | ||
62 | static struct platform_driver clk_mt6765_img_drv = { | |
63 | .probe = clk_mt6765_img_probe, | |
64 | .driver = { | |
65 | .name = "clk-mt6765-img", | |
66 | .of_match_table = of_match_clk_mt6765_img, | |
67 | }, | |
68 | }; | |
69 | ||
70 | builtin_platform_driver(clk_mt6765_img_drv); |