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