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 vdo0_0_cg_regs = {
14 .set_ofs = 0x104,
15 .clr_ofs = 0x108,
16 .sta_ofs = 0x100,
17 };
18
19 static const struct mtk_gate_regs vdo0_1_cg_regs = {
20 .set_ofs = 0x114,
21 .clr_ofs = 0x118,
22 .sta_ofs = 0x110,
23 };
24
25 static const struct mtk_gate_regs vdo0_2_cg_regs = {
26 .set_ofs = 0x124,
27 .clr_ofs = 0x128,
28 .sta_ofs = 0x120,
29 };
30
31 #define GATE_VDO0_0(_id, _name, _parent, _shift) \
32 GATE_MTK(_id, _name, _parent, &vdo0_0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
33
34 #define GATE_VDO0_1(_id, _name, _parent, _shift) \
35 GATE_MTK(_id, _name, _parent, &vdo0_1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
36
37 #define GATE_VDO0_2(_id, _name, _parent, _shift) \
38 GATE_MTK(_id, _name, _parent, &vdo0_2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
39
40 #define GATE_VDO0_2_FLAGS(_id, _name, _parent, _shift, _flags) \
41 GATE_MTK_FLAGS(_id, _name, _parent, &vdo0_2_cg_regs, _shift, \
42 &mtk_clk_gate_ops_setclr, _flags)
43
44 static const struct mtk_gate vdo0_clks[] = {
45 /* VDO0_0 */
46 GATE_VDO0_0(CLK_VDO0_DISP_OVL0, "vdo0_disp_ovl0", "top_vpp", 0),
47 GATE_VDO0_0(CLK_VDO0_DISP_COLOR0, "vdo0_disp_color0", "top_vpp", 2),
48 GATE_VDO0_0(CLK_VDO0_DISP_COLOR1, "vdo0_disp_color1", "top_vpp", 3),
49 GATE_VDO0_0(CLK_VDO0_DISP_CCORR0, "vdo0_disp_ccorr0", "top_vpp", 4),
50 GATE_VDO0_0(CLK_VDO0_DISP_CCORR1, "vdo0_disp_ccorr1", "top_vpp", 5),
51 GATE_VDO0_0(CLK_VDO0_DISP_AAL0, "vdo0_disp_aal0", "top_vpp", 6),
52 GATE_VDO0_0(CLK_VDO0_DISP_AAL1, "vdo0_disp_aal1", "top_vpp", 7),
53 GATE_VDO0_0(CLK_VDO0_DISP_GAMMA0, "vdo0_disp_gamma0", "top_vpp", 8),
54 GATE_VDO0_0(CLK_VDO0_DISP_GAMMA1, "vdo0_disp_gamma1", "top_vpp", 9),
55 GATE_VDO0_0(CLK_VDO0_DISP_DITHER0, "vdo0_disp_dither0", "top_vpp", 10),
56 GATE_VDO0_0(CLK_VDO0_DISP_DITHER1, "vdo0_disp_dither1", "top_vpp", 11),
57 GATE_VDO0_0(CLK_VDO0_DISP_OVL1, "vdo0_disp_ovl1", "top_vpp", 16),
58 GATE_VDO0_0(CLK_VDO0_DISP_WDMA0, "vdo0_disp_wdma0", "top_vpp", 17),
59 GATE_VDO0_0(CLK_VDO0_DISP_WDMA1, "vdo0_disp_wdma1", "top_vpp", 18),
60 GATE_VDO0_0(CLK_VDO0_DISP_RDMA0, "vdo0_disp_rdma0", "top_vpp", 19),
61 GATE_VDO0_0(CLK_VDO0_DISP_RDMA1, "vdo0_disp_rdma1", "top_vpp", 20),
62 GATE_VDO0_0(CLK_VDO0_DSI0, "vdo0_dsi0", "top_vpp", 21),
63 GATE_VDO0_0(CLK_VDO0_DSI1, "vdo0_dsi1", "top_vpp", 22),
64 GATE_VDO0_0(CLK_VDO0_DSC_WRAP0, "vdo0_dsc_wrap0", "top_vpp", 23),
65 GATE_VDO0_0(CLK_VDO0_VPP_MERGE0, "vdo0_vpp_merge0", "top_vpp", 24),
66 GATE_VDO0_0(CLK_VDO0_DP_INTF0, "vdo0_dp_intf0", "top_vpp", 25),
67 GATE_VDO0_0(CLK_VDO0_DISP_MUTEX0, "vdo0_disp_mutex0", "top_vpp", 26),
68 GATE_VDO0_0(CLK_VDO0_DISP_IL_ROT0, "vdo0_disp_il_rot0", "top_vpp", 27),
69 GATE_VDO0_0(CLK_VDO0_APB_BUS, "vdo0_apb_bus", "top_vpp", 28),
70 GATE_VDO0_0(CLK_VDO0_FAKE_ENG0, "vdo0_fake_eng0", "top_vpp", 29),
71 GATE_VDO0_0(CLK_VDO0_FAKE_ENG1, "vdo0_fake_eng1", "top_vpp", 30),
72 /* VDO0_1 */
73 GATE_VDO0_1(CLK_VDO0_DL_ASYNC0, "vdo0_dl_async0", "top_vpp", 0),
74 GATE_VDO0_1(CLK_VDO0_DL_ASYNC1, "vdo0_dl_async1", "top_vpp", 1),
75 GATE_VDO0_1(CLK_VDO0_DL_ASYNC2, "vdo0_dl_async2", "top_vpp", 2),
76 GATE_VDO0_1(CLK_VDO0_DL_ASYNC3, "vdo0_dl_async3", "top_vpp", 3),
77 GATE_VDO0_1(CLK_VDO0_DL_ASYNC4, "vdo0_dl_async4", "top_vpp", 4),
78 GATE_VDO0_1(CLK_VDO0_DISP_MONITOR0, "vdo0_disp_monitor0", "top_vpp", 5),
79 GATE_VDO0_1(CLK_VDO0_DISP_MONITOR1, "vdo0_disp_monitor1", "top_vpp", 6),
80 GATE_VDO0_1(CLK_VDO0_DISP_MONITOR2, "vdo0_disp_monitor2", "top_vpp", 7),
81 GATE_VDO0_1(CLK_VDO0_DISP_MONITOR3, "vdo0_disp_monitor3", "top_vpp", 8),
82 GATE_VDO0_1(CLK_VDO0_DISP_MONITOR4, "vdo0_disp_monitor4", "top_vpp", 9),
83 GATE_VDO0_1(CLK_VDO0_SMI_GALS, "vdo0_smi_gals", "top_vpp", 10),
84 GATE_VDO0_1(CLK_VDO0_SMI_COMMON, "vdo0_smi_common", "top_vpp", 11),
85 GATE_VDO0_1(CLK_VDO0_SMI_EMI, "vdo0_smi_emi", "top_vpp", 12),
86 GATE_VDO0_1(CLK_VDO0_SMI_IOMMU, "vdo0_smi_iommu", "top_vpp", 13),
87 GATE_VDO0_1(CLK_VDO0_SMI_LARB, "vdo0_smi_larb", "top_vpp", 14),
88 GATE_VDO0_1(CLK_VDO0_SMI_RSI, "vdo0_smi_rsi", "top_vpp", 15),
89 /* VDO0_2 */
90 GATE_VDO0_2(CLK_VDO0_DSI0_DSI, "vdo0_dsi0_dsi", "top_dsi_occ", 0),
91 GATE_VDO0_2(CLK_VDO0_DSI1_DSI, "vdo0_dsi1_dsi", "top_dsi_occ", 8),
92 GATE_VDO0_2_FLAGS(CLK_VDO0_DP_INTF0_DP_INTF, "vdo0_dp_intf0_dp_intf",
93 "top_edp", 16, CLK_SET_RATE_PARENT),
94 };
95
clk_mt8195_vdo0_probe(struct platform_device * pdev)96 static int clk_mt8195_vdo0_probe(struct platform_device *pdev)
97 {
98 struct device *dev = &pdev->dev;
99 struct device_node *node = dev->parent->of_node;
100 struct clk_hw_onecell_data *clk_data;
101 int r;
102
103 clk_data = mtk_alloc_clk_data(CLK_VDO0_NR_CLK);
104 if (!clk_data)
105 return -ENOMEM;
106
107 r = mtk_clk_register_gates(node, vdo0_clks, ARRAY_SIZE(vdo0_clks), clk_data);
108 if (r)
109 goto free_vdo0_data;
110
111 r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
112 if (r)
113 goto unregister_gates;
114
115 platform_set_drvdata(pdev, clk_data);
116
117 return r;
118
119 unregister_gates:
120 mtk_clk_unregister_gates(vdo0_clks, ARRAY_SIZE(vdo0_clks), clk_data);
121 free_vdo0_data:
122 mtk_free_clk_data(clk_data);
123 return r;
124 }
125
clk_mt8195_vdo0_remove(struct platform_device * pdev)126 static int clk_mt8195_vdo0_remove(struct platform_device *pdev)
127 {
128 struct device *dev = &pdev->dev;
129 struct device_node *node = dev->parent->of_node;
130 struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
131
132 of_clk_del_provider(node);
133 mtk_clk_unregister_gates(vdo0_clks, ARRAY_SIZE(vdo0_clks), clk_data);
134 mtk_free_clk_data(clk_data);
135
136 return 0;
137 }
138
139 static struct platform_driver clk_mt8195_vdo0_drv = {
140 .probe = clk_mt8195_vdo0_probe,
141 .remove = clk_mt8195_vdo0_remove,
142 .driver = {
143 .name = "clk-mt8195-vdo0",
144 },
145 };
146 builtin_platform_driver(clk_mt8195_vdo0_drv);
147