1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2019 MediaTek Inc.
4  * Author: Wendell Lin <wendell.lin@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/mt6779-clk.h>
14 
15 static const struct mtk_gate_regs mfg_cg_regs = {
16 	.set_ofs = 0x4,
17 	.clr_ofs = 0x8,
18 	.sta_ofs = 0x0,
19 };
20 
21 #define GATE_MFG(_id, _name, _parent, _shift)			\
22 	GATE_MTK(_id, _name, _parent, &mfg_cg_regs, _shift,	\
23 		&mtk_clk_gate_ops_setclr)
24 
25 static const struct mtk_gate mfg_clks[] = {
26 	GATE_MFG(CLK_MFGCFG_BG3D, "mfg_bg3d", "mfg_sel", 0),
27 };
28 
29 static int clk_mt6779_mfg_probe(struct platform_device *pdev)
30 {
31 	struct clk_onecell_data *clk_data;
32 	struct device_node *node = pdev->dev.of_node;
33 
34 	clk_data = mtk_alloc_clk_data(CLK_MFGCFG_NR_CLK);
35 
36 	mtk_clk_register_gates(node, mfg_clks, ARRAY_SIZE(mfg_clks),
37 			       clk_data);
38 
39 	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
40 }
41 
42 static const struct of_device_id of_match_clk_mt6779_mfg[] = {
43 	{ .compatible = "mediatek,mt6779-mfgcfg", },
44 	{}
45 };
46 
47 static struct platform_driver clk_mt6779_mfg_drv = {
48 	.probe = clk_mt6779_mfg_probe,
49 	.driver = {
50 		.name = "clk-mt6779-mfg",
51 		.of_match_table = of_match_clk_mt6779_mfg,
52 	},
53 };
54 
55 builtin_platform_driver(clk_mt6779_mfg_drv);
56