xref: /linux/drivers/clk/mediatek/clk-mt8167-vdec.c (revision 3a39d672e7f48b8d6b91a09afa4b55352773b4b5)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2020 MediaTek Inc.
4  * Copyright (c) 2020 BayLibre, SAS
5  * Author: James Liao <jamesjj.liao@mediatek.com>
6  *         Fabien Parent <fparent@baylibre.com>
7  */
8 
9 #include <linux/clk-provider.h>
10 #include <linux/mod_devicetable.h>
11 #include <linux/platform_device.h>
12 
13 #include "clk-mtk.h"
14 #include "clk-gate.h"
15 
16 #include <dt-bindings/clock/mt8167-clk.h>
17 
18 static const struct mtk_gate_regs vdec0_cg_regs = {
19 	.set_ofs = 0x0,
20 	.clr_ofs = 0x4,
21 	.sta_ofs = 0x0,
22 };
23 
24 static const struct mtk_gate_regs vdec1_cg_regs = {
25 	.set_ofs = 0x8,
26 	.clr_ofs = 0xc,
27 	.sta_ofs = 0x8,
28 };
29 
30 #define GATE_VDEC0_I(_id, _name, _parent, _shift)			\
31 	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
32 
33 #define GATE_VDEC1_I(_id, _name, _parent, _shift)			\
34 	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
35 
36 static const struct mtk_gate vdec_clks[] = {
37 	/* VDEC0 */
38 	GATE_VDEC0_I(CLK_VDEC_CKEN, "vdec_cken", "rg_vdec", 0),
39 	/* VDEC1 */
40 	GATE_VDEC1_I(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "smi_mm", 0),
41 };
42 
43 static const struct mtk_clk_desc vdec_desc = {
44 	.clks = vdec_clks,
45 	.num_clks = ARRAY_SIZE(vdec_clks),
46 };
47 
48 static const struct of_device_id of_match_clk_mt8167_vdec[] = {
49 	{ .compatible = "mediatek,mt8167-vdecsys", .data = &vdec_desc },
50 	{ /* sentinel */ }
51 };
52 MODULE_DEVICE_TABLE(of, of_match_clk_mt8167_vdec);
53 
54 static struct platform_driver clk_mt8167_vdec_drv = {
55 	.probe = mtk_clk_simple_probe,
56 	.remove = mtk_clk_simple_remove,
57 	.driver = {
58 		.name = "clk-mt8167-vdecsys",
59 		.of_match_table = of_match_clk_mt8167_vdec,
60 	},
61 };
62 module_platform_driver(clk_mt8167_vdec_drv);
63 
64 MODULE_DESCRIPTION("MediaTek MT8167 Video Decoders clocks driver");
65 MODULE_LICENSE("GPL");
66