1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Copyright (c) 2018 MediaTek Inc.
4 // Author: Weiyi Lu <weiyi.lu@mediatek.com>
5 
6 #include <linux/clk-provider.h>
7 #include <linux/platform_device.h>
8 
9 #include "clk-mtk.h"
10 #include "clk-gate.h"
11 
12 #include <dt-bindings/clock/mt8183-clk.h>
13 
14 static const struct mtk_gate_regs cam_cg_regs = {
15 	.set_ofs = 0x4,
16 	.clr_ofs = 0x8,
17 	.sta_ofs = 0x0,
18 };
19 
20 #define GATE_CAM(_id, _name, _parent, _shift)			\
21 	GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift,	\
22 		&mtk_clk_gate_ops_setclr)
23 
24 static const struct mtk_gate cam_clks[] = {
25 	GATE_CAM(CLK_CAM_LARB6, "cam_larb6", "cam_sel", 0),
26 	GATE_CAM(CLK_CAM_DFP_VAD, "cam_dfp_vad", "cam_sel", 1),
27 	GATE_CAM(CLK_CAM_LARB3, "cam_larb3", "cam_sel", 2),
28 	GATE_CAM(CLK_CAM_CAM, "cam_cam", "cam_sel", 6),
29 	GATE_CAM(CLK_CAM_CAMTG, "cam_camtg", "cam_sel", 7),
30 	GATE_CAM(CLK_CAM_SENINF, "cam_seninf", "cam_sel", 8),
31 	GATE_CAM(CLK_CAM_CAMSV0, "cam_camsv0", "cam_sel", 9),
32 	GATE_CAM(CLK_CAM_CAMSV1, "cam_camsv1", "cam_sel", 10),
33 	GATE_CAM(CLK_CAM_CAMSV2, "cam_camsv2", "cam_sel", 11),
34 	GATE_CAM(CLK_CAM_CCU, "cam_ccu", "cam_sel", 12),
35 };
36 
37 static int clk_mt8183_cam_probe(struct platform_device *pdev)
38 {
39 	struct clk_onecell_data *clk_data;
40 	struct device_node *node = pdev->dev.of_node;
41 
42 	clk_data = mtk_alloc_clk_data(CLK_CAM_NR_CLK);
43 
44 	mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks),
45 			clk_data);
46 
47 	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
48 }
49 
50 static const struct of_device_id of_match_clk_mt8183_cam[] = {
51 	{ .compatible = "mediatek,mt8183-camsys", },
52 	{}
53 };
54 
55 static struct platform_driver clk_mt8183_cam_drv = {
56 	.probe = clk_mt8183_cam_probe,
57 	.driver = {
58 		.name = "clk-mt8183-cam",
59 		.of_match_table = of_match_clk_mt8183_cam,
60 	},
61 };
62 
63 builtin_platform_driver(clk_mt8183_cam_drv);
64