1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright (c) 2021 MediaTek Inc.
4 // Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
5 
6 #include "clk-gate.h"
7 #include "clk-mtk.h"
8 
9 #include <dt-bindings/clock/mt8195-clk.h>
10 #include <linux/clk-provider.h>
11 #include <linux/platform_device.h>
12 
13 static const struct mtk_gate_regs vdo1_0_cg_regs = {
14 	.set_ofs = 0x104,
15 	.clr_ofs = 0x108,
16 	.sta_ofs = 0x100,
17 };
18 
19 static const struct mtk_gate_regs vdo1_1_cg_regs = {
20 	.set_ofs = 0x124,
21 	.clr_ofs = 0x128,
22 	.sta_ofs = 0x120,
23 };
24 
25 static const struct mtk_gate_regs vdo1_2_cg_regs = {
26 	.set_ofs = 0x134,
27 	.clr_ofs = 0x138,
28 	.sta_ofs = 0x130,
29 };
30 
31 static const struct mtk_gate_regs vdo1_3_cg_regs = {
32 	.set_ofs = 0x144,
33 	.clr_ofs = 0x148,
34 	.sta_ofs = 0x140,
35 };
36 
37 #define GATE_VDO1_0(_id, _name, _parent, _shift)			\
38 	GATE_MTK(_id, _name, _parent, &vdo1_0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
39 
40 #define GATE_VDO1_1(_id, _name, _parent, _shift)			\
41 	GATE_MTK(_id, _name, _parent, &vdo1_1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
42 
43 #define GATE_VDO1_2(_id, _name, _parent, _shift)			\
44 	GATE_MTK(_id, _name, _parent, &vdo1_2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
45 
46 #define GATE_VDO1_3(_id, _name, _parent, _shift)			\
47 	GATE_MTK(_id, _name, _parent, &vdo1_3_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
48 
49 static const struct mtk_gate vdo1_clks[] = {
50 	/* VDO1_0 */
51 	GATE_VDO1_0(CLK_VDO1_SMI_LARB2, "vdo1_smi_larb2", "top_vpp", 0),
52 	GATE_VDO1_0(CLK_VDO1_SMI_LARB3, "vdo1_smi_larb3", "top_vpp", 1),
53 	GATE_VDO1_0(CLK_VDO1_GALS, "vdo1_gals", "top_vpp", 2),
54 	GATE_VDO1_0(CLK_VDO1_FAKE_ENG0, "vdo1_fake_eng0", "top_vpp", 3),
55 	GATE_VDO1_0(CLK_VDO1_FAKE_ENG, "vdo1_fake_eng", "top_vpp", 4),
56 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA0, "vdo1_mdp_rdma0", "top_vpp", 5),
57 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA1, "vdo1_mdp_rdma1", "top_vpp", 6),
58 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA2, "vdo1_mdp_rdma2", "top_vpp", 7),
59 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA3, "vdo1_mdp_rdma3", "top_vpp", 8),
60 	GATE_VDO1_0(CLK_VDO1_VPP_MERGE0, "vdo1_vpp_merge0", "top_vpp", 9),
61 	GATE_VDO1_0(CLK_VDO1_VPP_MERGE1, "vdo1_vpp_merge1", "top_vpp", 10),
62 	GATE_VDO1_0(CLK_VDO1_VPP_MERGE2, "vdo1_vpp_merge2", "top_vpp", 11),
63 	GATE_VDO1_0(CLK_VDO1_VPP_MERGE3, "vdo1_vpp_merge3", "top_vpp", 12),
64 	GATE_VDO1_0(CLK_VDO1_VPP_MERGE4, "vdo1_vpp_merge4", "top_vpp", 13),
65 	GATE_VDO1_0(CLK_VDO1_VPP2_TO_VDO1_DL_ASYNC, "vdo1_vpp2_to_vdo1_dl_async", "top_vpp", 14),
66 	GATE_VDO1_0(CLK_VDO1_VPP3_TO_VDO1_DL_ASYNC, "vdo1_vpp3_to_vdo1_dl_async", "top_vpp", 15),
67 	GATE_VDO1_0(CLK_VDO1_DISP_MUTEX, "vdo1_disp_mutex", "top_vpp", 16),
68 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA4, "vdo1_mdp_rdma4", "top_vpp", 17),
69 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA5, "vdo1_mdp_rdma5", "top_vpp", 18),
70 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA6, "vdo1_mdp_rdma6", "top_vpp", 19),
71 	GATE_VDO1_0(CLK_VDO1_MDP_RDMA7, "vdo1_mdp_rdma7", "top_vpp", 20),
72 	GATE_VDO1_0(CLK_VDO1_DP_INTF0_MM, "vdo1_dp_intf0_mm", "top_vpp", 21),
73 	GATE_VDO1_0(CLK_VDO1_DPI0_MM, "vdo1_dpi0_mm", "top_vpp", 22),
74 	GATE_VDO1_0(CLK_VDO1_DPI1_MM, "vdo1_dpi1_mm", "top_vpp", 23),
75 	GATE_VDO1_0(CLK_VDO1_DISP_MONITOR, "vdo1_disp_monitor", "top_vpp", 24),
76 	GATE_VDO1_0(CLK_VDO1_MERGE0_DL_ASYNC, "vdo1_merge0_dl_async", "top_vpp", 25),
77 	GATE_VDO1_0(CLK_VDO1_MERGE1_DL_ASYNC, "vdo1_merge1_dl_async", "top_vpp", 26),
78 	GATE_VDO1_0(CLK_VDO1_MERGE2_DL_ASYNC, "vdo1_merge2_dl_async", "top_vpp", 27),
79 	GATE_VDO1_0(CLK_VDO1_MERGE3_DL_ASYNC, "vdo1_merge3_dl_async", "top_vpp", 28),
80 	GATE_VDO1_0(CLK_VDO1_MERGE4_DL_ASYNC, "vdo1_merge4_dl_async", "top_vpp", 29),
81 	GATE_VDO1_0(CLK_VDO1_VDO0_DSC_TO_VDO1_DL_ASYNC, "vdo1_vdo0_dsc_to_vdo1_dl_async",
82 		    "top_vpp", 30),
83 	GATE_VDO1_0(CLK_VDO1_VDO0_MERGE_TO_VDO1_DL_ASYNC, "vdo1_vdo0_merge_to_vdo1_dl_async",
84 		    "top_vpp", 31),
85 	/* VDO1_1 */
86 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE0, "vdo1_hdr_vdo_fe0", "top_vpp", 0),
87 	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE0, "vdo1_hdr_gfx_fe0", "top_vpp", 1),
88 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_BE, "vdo1_hdr_vdo_be", "top_vpp", 2),
89 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE1, "vdo1_hdr_vdo_fe1", "top_vpp", 16),
90 	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE1, "vdo1_hdr_gfx_fe1", "top_vpp", 17),
91 	GATE_VDO1_1(CLK_VDO1_DISP_MIXER, "vdo1_disp_mixer", "top_vpp", 18),
92 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE0_DL_ASYNC, "vdo1_hdr_vdo_fe0_dl_async", "top_vpp", 19),
93 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE1_DL_ASYNC, "vdo1_hdr_vdo_fe1_dl_async", "top_vpp", 20),
94 	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE0_DL_ASYNC, "vdo1_hdr_gfx_fe0_dl_async", "top_vpp", 21),
95 	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE1_DL_ASYNC, "vdo1_hdr_gfx_fe1_dl_async", "top_vpp", 22),
96 	GATE_VDO1_1(CLK_VDO1_HDR_VDO_BE_DL_ASYNC, "vdo1_hdr_vdo_be_dl_async", "top_vpp", 23),
97 	/* VDO1_2 */
98 	GATE_VDO1_2(CLK_VDO1_DPI0, "vdo1_dpi0", "top_vpp", 0),
99 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI0, "vdo1_disp_monitor_dpi0", "top_vpp", 1),
100 	GATE_VDO1_2(CLK_VDO1_DPI1, "vdo1_dpi1", "top_vpp", 8),
101 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI1, "vdo1_disp_monitor_dpi1", "top_vpp", 9),
102 	GATE_VDO1_2(CLK_VDO1_DPINTF, "vdo1_dpintf", "top_vpp", 16),
103 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf", "top_vpp", 17),
104 	/* VDO1_3 */
105 	GATE_VDO1_3(CLK_VDO1_26M_SLOW, "vdo1_26m_slow", "clk26m", 8),
106 };
107 
108 static int clk_mt8195_vdo1_probe(struct platform_device *pdev)
109 {
110 	struct device *dev = &pdev->dev;
111 	struct device_node *node = dev->parent->of_node;
112 	struct clk_onecell_data *clk_data;
113 	int r;
114 
115 	clk_data = mtk_alloc_clk_data(CLK_VDO1_NR_CLK);
116 	if (!clk_data)
117 		return -ENOMEM;
118 
119 	r = mtk_clk_register_gates(node, vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
120 	if (r)
121 		goto free_vdo1_data;
122 
123 	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
124 	if (r)
125 		goto unregister_gates;
126 
127 	platform_set_drvdata(pdev, clk_data);
128 
129 	return r;
130 
131 unregister_gates:
132 	mtk_clk_unregister_gates(vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
133 free_vdo1_data:
134 	mtk_free_clk_data(clk_data);
135 	return r;
136 }
137 
138 static int clk_mt8195_vdo1_remove(struct platform_device *pdev)
139 {
140 	struct device *dev = &pdev->dev;
141 	struct device_node *node = dev->parent->of_node;
142 	struct clk_onecell_data *clk_data = platform_get_drvdata(pdev);
143 
144 	of_clk_del_provider(node);
145 	mtk_clk_unregister_gates(vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
146 	mtk_free_clk_data(clk_data);
147 
148 	return 0;
149 }
150 
151 static struct platform_driver clk_mt8195_vdo1_drv = {
152 	.probe = clk_mt8195_vdo1_probe,
153 	.remove = clk_mt8195_vdo1_remove,
154 	.driver = {
155 		.name = "clk-mt8195-vdo1",
156 	},
157 };
158 builtin_platform_driver(clk_mt8195_vdo1_drv);
159