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#include <dt-bindings/clock/mt6779-clk.h>
10
11#include "clk-mtk.h"
12#include "clk-gate.h"
13
14static const struct mtk_gate_regs img_cg_regs = {
15	.set_ofs = 0x0004,
16	.clr_ofs = 0x0008,
17	.sta_ofs = 0x0000,
18};
19
20#define GATE_IMG(_id, _name, _parent, _shift)			\
21	GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift,	\
22		&mtk_clk_gate_ops_setclr)
23
24static const struct mtk_gate img_clks[] = {
25	GATE_IMG(CLK_IMG_LARB5, "imgsys_larb5", "img_sel", 0),
26	GATE_IMG(CLK_IMG_LARB6, "imgsys_larb6", "img_sel", 1),
27	GATE_IMG(CLK_IMG_DIP, "imgsys_dip", "img_sel", 2),
28	GATE_IMG(CLK_IMG_MFB, "imgsys_mfb", "img_sel", 6),
29	GATE_IMG(CLK_IMG_WPE_A, "imgsys_wpe_a", "img_sel", 7),
30};
31
32static const struct of_device_id of_match_clk_mt6779_img[] = {
33	{ .compatible = "mediatek,mt6779-imgsys", },
34	{}
35};
36
37static int clk_mt6779_img_probe(struct platform_device *pdev)
38{
39	struct clk_onecell_data *clk_data;
40	struct device_node *node = pdev->dev.of_node;
41
42	clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
43
44	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
45			       clk_data);
46
47	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
48}
49
50static struct platform_driver clk_mt6779_img_drv = {
51	.probe = clk_mt6779_img_probe,
52	.driver = {
53		.name = "clk-mt6779-img",
54		.of_match_table = of_match_clk_mt6779_img,
55	},
56};
57
58builtin_platform_driver(clk_mt6779_img_drv);
59