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/of.h>
11 #include <linux/of_address.h>
12 #include <linux/of_device.h>
13 #include <linux/platform_device.h>
14
15 #include "clk-mtk.h"
16 #include "clk-gate.h"
17
18 #include <dt-bindings/clock/mt8167-clk.h>
19
20 static const struct mtk_gate_regs img_cg_regs = {
21 .set_ofs = 0x4,
22 .clr_ofs = 0x8,
23 .sta_ofs = 0x0,
24 };
25
26 #define GATE_IMG(_id, _name, _parent, _shift) { \
27 .id = _id, \
28 .name = _name, \
29 .parent_name = _parent, \
30 .regs = &img_cg_regs, \
31 .shift = _shift, \
32 .ops = &mtk_clk_gate_ops_setclr, \
33 }
34
35 static const struct mtk_gate img_clks[] __initconst = {
36 GATE_IMG(CLK_IMG_LARB1_SMI, "img_larb1_smi", "smi_mm", 0),
37 GATE_IMG(CLK_IMG_CAM_SMI, "img_cam_smi", "smi_mm", 5),
38 GATE_IMG(CLK_IMG_CAM_CAM, "img_cam_cam", "smi_mm", 6),
39 GATE_IMG(CLK_IMG_SEN_TG, "img_sen_tg", "cam_mm", 7),
40 GATE_IMG(CLK_IMG_SEN_CAM, "img_sen_cam", "smi_mm", 8),
41 GATE_IMG(CLK_IMG_VENC, "img_venc", "smi_mm", 9),
42 };
43
mtk_imgsys_init(struct device_node * node)44 static void __init mtk_imgsys_init(struct device_node *node)
45 {
46 struct clk_onecell_data *clk_data;
47 int r;
48
49 clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
50
51 mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), clk_data);
52
53 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
54
55 if (r)
56 pr_err("%s(): could not register clock provider: %d\n",
57 __func__, r);
58
59 }
60 CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt8167-imgsys", mtk_imgsys_init);
61