tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2022 MediaTek Inc.
4 * Author: Garmin Chang <garmin.chang@mediatek.com>
5 */
6
7#include <dt-bindings/clock/mediatek,mt8188-clk.h>
8#include <linux/clk-provider.h>
9#include <linux/platform_device.h>
10
11#include "clk-gate.h"
12#include "clk-mtk.h"
13
14static const struct mtk_gate_regs ipe_cg_regs = {
15 .set_ofs = 0x4,
16 .clr_ofs = 0x8,
17 .sta_ofs = 0x0,
18};
19
20#define GATE_IPE(_id, _name, _parent, _shift) \
21 GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
22
23#define IPE_SYS_SMI_LARB_RST_OFF (0xC)
24
25static const struct mtk_gate ipe_clks[] = {
26 GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "top_ipe", 0),
27 GATE_IPE(CLK_IPE_FDVT, "ipe_fdvt", "top_ipe", 1),
28 GATE_IPE(CLK_IPE_ME, "ipe_me", "top_ipe", 2),
29 GATE_IPE(CLK_IPESYS_TOP, "ipesys_top", "top_ipe", 3),
30 GATE_IPE(CLK_IPE_SMI_LARB12, "ipe_smi_larb12", "top_ipe", 4),
31};
32
33/* Reset for SMI larb 12 */
34static u16 ipe_sys_rst_ofs[] = {
35 IPE_SYS_SMI_LARB_RST_OFF,
36};
37
38static const struct mtk_clk_rst_desc ipe_sys_rst_desc = {
39 .version = MTK_RST_SIMPLE,
40 .rst_bank_ofs = ipe_sys_rst_ofs,
41 .rst_bank_nr = ARRAY_SIZE(ipe_sys_rst_ofs),
42};
43
44static const struct mtk_clk_desc ipe_desc = {
45 .clks = ipe_clks,
46 .num_clks = ARRAY_SIZE(ipe_clks),
47 .rst_desc = &ipe_sys_rst_desc,
48};
49
50static const struct of_device_id of_match_clk_mt8188_ipe[] = {
51 { .compatible = "mediatek,mt8188-ipesys", .data = &ipe_desc },
52 { /* sentinel */ }
53};
54MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ipe);
55
56static struct platform_driver clk_mt8188_ipe_drv = {
57 .probe = mtk_clk_simple_probe,
58 .remove = mtk_clk_simple_remove,
59 .driver = {
60 .name = "clk-mt8188-ipe",
61 .of_match_table = of_match_clk_mt8188_ipe,
62 },
63};
64
65module_platform_driver(clk_mt8188_ipe_drv);
66
67MODULE_DESCRIPTION("MediaTek MT8188 Image Processing Engine clocks driver");
68MODULE_LICENSE("GPL");