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
15static const struct mtk_gate_regs vdec0_cg_regs = {
16	.set_ofs = 0x0000,
17	.clr_ofs = 0x0004,
18	.sta_ofs = 0x0000,
19};
20
21static const struct mtk_gate_regs vdec1_cg_regs = {
22	.set_ofs = 0x0008,
23	.clr_ofs = 0x000c,
24	.sta_ofs = 0x0008,
25};
26
27#define GATE_VDEC0_I(_id, _name, _parent, _shift)		\
28	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift,	\
29		&mtk_clk_gate_ops_setclr_inv)
30#define GATE_VDEC1_I(_id, _name, _parent, _shift)		\
31	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift,	\
32		&mtk_clk_gate_ops_setclr_inv)
33
34static const struct mtk_gate vdec_clks[] = {
35	/* VDEC0 */
36	GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_cken", "vdec_sel", 0),
37	/* VDEC1 */
38	GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1_cken", "vdec_sel", 0),
39};
40
41static const struct of_device_id of_match_clk_mt6779_vdec[] = {
42	{ .compatible = "mediatek,mt6779-vdecsys", },
43	{}
44};
45
46static int clk_mt6779_vdec_probe(struct platform_device *pdev)
47{
48	struct clk_onecell_data *clk_data;
49	struct device_node *node = pdev->dev.of_node;
50
51	clk_data = mtk_alloc_clk_data(CLK_VDEC_GCON_NR_CLK);
52
53	mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
54			       clk_data);
55
56	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
57}
58
59static struct platform_driver clk_mt6779_vdec_drv = {
60	.probe = clk_mt6779_vdec_probe,
61	.driver = {
62		.name = "clk-mt6779-vdec",
63		.of_match_table = of_match_clk_mt6779_vdec,
64	},
65};
66
67builtin_platform_driver(clk_mt6779_vdec_drv);
68