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 ipe_cg_regs = {
15	.set_ofs = 0x0004,
16	.clr_ofs = 0x0008,
17	.sta_ofs = 0x0000,
18};
19
20#define GATE_IPE(_id, _name, _parent, _shift)			\
21	GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift,	\
22		&mtk_clk_gate_ops_setclr)
23
24static const struct mtk_gate ipe_clks[] = {
25	GATE_IPE(CLK_IPE_LARB7, "ipe_larb7", "ipe_sel", 0),
26	GATE_IPE(CLK_IPE_LARB8, "ipe_larb8", "ipe_sel", 1),
27	GATE_IPE(CLK_IPE_SMI_SUBCOM, "ipe_smi_subcom", "ipe_sel", 2),
28	GATE_IPE(CLK_IPE_FD, "ipe_fd", "ipe_sel", 3),
29	GATE_IPE(CLK_IPE_FE, "ipe_fe", "ipe_sel", 4),
30	GATE_IPE(CLK_IPE_RSC, "ipe_rsc", "ipe_sel", 5),
31	GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "ipe_sel", 6),
32};
33
34static const struct of_device_id of_match_clk_mt6779_ipe[] = {
35	{ .compatible = "mediatek,mt6779-ipesys", },
36	{}
37};
38
39static int clk_mt6779_ipe_probe(struct platform_device *pdev)
40{
41	struct clk_onecell_data *clk_data;
42	struct device_node *node = pdev->dev.of_node;
43
44	clk_data = mtk_alloc_clk_data(CLK_IPE_NR_CLK);
45
46	mtk_clk_register_gates(node, ipe_clks, ARRAY_SIZE(ipe_clks),
47			       clk_data);
48
49	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
50}
51
52static struct platform_driver clk_mt6779_ipe_drv = {
53	.probe = clk_mt6779_ipe_probe,
54	.driver = {
55		.name = "clk-mt6779-ipe",
56		.of_match_table = of_match_clk_mt6779_ipe,
57	},
58};
59
60builtin_platform_driver(clk_mt6779_ipe_drv);
61