1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2014 MediaTek Inc.
4 * Author: Shunli Wang <shunli.wang@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/mt2701-clk.h>
14
15static const struct mtk_gate_regs img_cg_regs = {
16	.set_ofs = 0x0004,
17	.clr_ofs = 0x0008,
18	.sta_ofs = 0x0000,
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
30static const struct mtk_gate img_clks[] = {
31	GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0),
32	GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1),
33	GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5),
34	GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6),
35	GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8),
36	GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9),
37};
38
39static const struct of_device_id of_match_clk_mt2701_img[] = {
40	{ .compatible = "mediatek,mt2701-imgsys", },
41	{}
42};
43
44static int clk_mt2701_img_probe(struct platform_device *pdev)
45{
46	struct clk_onecell_data *clk_data;
47	int r;
48	struct device_node *node = pdev->dev.of_node;
49
50	clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
51
52	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
53						clk_data);
54
55	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
56	if (r)
57		dev_err(&pdev->dev,
58			"could not register clock provider: %s: %d\n",
59			pdev->name, r);
60
61	return r;
62}
63
64static struct platform_driver clk_mt2701_img_drv = {
65	.probe = clk_mt2701_img_probe,
66	.driver = {
67		.name = "clk-mt2701-img",
68		.of_match_table = of_match_clk_mt2701_img,
69	},
70};
71
72builtin_platform_driver(clk_mt2701_img_drv);
73