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/module.h>
8 #include <linux/clk-provider.h>
9 #include <linux/platform_device.h>
10 
11 #include "clk-mtk.h"
12 #include "clk-gate.h"
13 
14 #include <dt-bindings/clock/mt6779-clk.h>
15 
16 static const struct mtk_gate_regs mfg_cg_regs = {
17 	.set_ofs = 0x4,
18 	.clr_ofs = 0x8,
19 	.sta_ofs = 0x0,
20 };
21 
22 #define GATE_MFG(_id, _name, _parent, _shift)			\
23 	GATE_MTK(_id, _name, _parent, &mfg_cg_regs, _shift,	\
24 		&mtk_clk_gate_ops_setclr)
25 
26 static const struct mtk_gate mfg_clks[] = {
27 	GATE_MFG(CLK_MFGCFG_BG3D, "mfg_bg3d", "mfg_sel", 0),
28 };
29 
30 static int clk_mt6779_mfg_probe(struct platform_device *pdev)
31 {
32 	struct clk_onecell_data *clk_data;
33 	struct device_node *node = pdev->dev.of_node;
34 
35 	clk_data = mtk_alloc_clk_data(CLK_MFGCFG_NR_CLK);
36 
37 	mtk_clk_register_gates(node, mfg_clks, ARRAY_SIZE(mfg_clks),
38 			       clk_data);
39 
40 	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
41 }
42 
43 static const struct of_device_id of_match_clk_mt6779_mfg[] = {
44 	{ .compatible = "mediatek,mt6779-mfgcfg", },
45 	{}
46 };
47 
48 static struct platform_driver clk_mt6779_mfg_drv = {
49 	.probe = clk_mt6779_mfg_probe,
50 	.driver = {
51 		.name = "clk-mt6779-mfg",
52 		.of_match_table = of_match_clk_mt6779_mfg,
53 	},
54 };
55 
56 module_platform_driver(clk_mt6779_mfg_drv);
57 MODULE_LICENSE("GPL");
58