tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2021 MediaTek Inc.
4 * Copyright (c) 2024 Collabora Ltd.
5 * AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
6 */
7
8#include <linux/device.h>
9#include <linux/interconnect.h>
10#include <linux/interconnect-provider.h>
11#include <linux/mod_devicetable.h>
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <dt-bindings/interconnect/mediatek,mt8195.h>
15
16#include "icc-emi.h"
17
18static struct mtk_icc_node ddr_emi = {
19 .name = "ddr-emi",
20 .id = SLAVE_DDR_EMI,
21 .ep = 1,
22};
23
24static struct mtk_icc_node mcusys = {
25 .name = "mcusys",
26 .id = MASTER_MCUSYS,
27 .ep = 0,
28 .num_links = 1,
29 .links = { SLAVE_DDR_EMI }
30};
31
32static struct mtk_icc_node gpu = {
33 .name = "gpu",
34 .id = MASTER_GPUSYS,
35 .ep = 0,
36 .num_links = 1,
37 .links = { SLAVE_DDR_EMI }
38};
39
40static struct mtk_icc_node mmsys = {
41 .name = "mmsys",
42 .id = MASTER_MMSYS,
43 .ep = 0,
44 .num_links = 1,
45 .links = { SLAVE_DDR_EMI }
46};
47
48static struct mtk_icc_node mm_vpu = {
49 .name = "mm-vpu",
50 .id = MASTER_MM_VPU,
51 .ep = 0,
52 .num_links = 1,
53 .links = { MASTER_MMSYS }
54};
55
56static struct mtk_icc_node mm_disp = {
57 .name = "mm-disp",
58 .id = MASTER_MM_DISP,
59 .ep = 0,
60 .num_links = 1,
61 .links = { MASTER_MMSYS }
62};
63
64static struct mtk_icc_node mm_vdec = {
65 .name = "mm-vdec",
66 .id = MASTER_MM_VDEC,
67 .ep = 0,
68 .num_links = 1,
69 .links = { MASTER_MMSYS }
70};
71
72static struct mtk_icc_node mm_venc = {
73 .name = "mm-venc",
74 .id = MASTER_MM_VENC,
75 .ep = 0,
76 .num_links = 1,
77 .links = { MASTER_MMSYS }
78};
79
80static struct mtk_icc_node mm_cam = {
81 .name = "mm-cam",
82 .id = MASTER_MM_CAM,
83 .ep = 0,
84 .num_links = 1,
85 .links = { MASTER_MMSYS }
86};
87
88static struct mtk_icc_node mm_img = {
89 .name = "mm-img",
90 .id = MASTER_MM_IMG,
91 .ep = 0,
92 .num_links = 1,
93 .links = { MASTER_MMSYS }
94};
95
96static struct mtk_icc_node mm_mdp = {
97 .name = "mm-mdp",
98 .id = MASTER_MM_MDP,
99 .ep = 0,
100 .num_links = 1,
101 .links = { MASTER_MMSYS }
102};
103
104static struct mtk_icc_node vpusys = {
105 .name = "vpusys",
106 .id = MASTER_VPUSYS,
107 .ep = 0,
108 .num_links = 1,
109 .links = { SLAVE_DDR_EMI }
110};
111
112static struct mtk_icc_node vpu_port0 = {
113 .name = "vpu-port0",
114 .id = MASTER_VPU_0,
115 .ep = 0,
116 .num_links = 1,
117 .links = { MASTER_VPUSYS }
118};
119
120static struct mtk_icc_node vpu_port1 = {
121 .name = "vpu-port1",
122 .id = MASTER_VPU_1,
123 .ep = 0,
124 .num_links = 1,
125 .links = { MASTER_VPUSYS }
126};
127
128static struct mtk_icc_node mdlasys = {
129 .name = "mdlasys",
130 .id = MASTER_MDLASYS,
131 .ep = 0,
132 .num_links = 1,
133 .links = { SLAVE_DDR_EMI }
134};
135
136static struct mtk_icc_node mdla_port0 = {
137 .name = "mdla-port0",
138 .id = MASTER_MDLA_0,
139 .ep = 0,
140 .num_links = 1,
141 .links = { MASTER_MDLASYS }
142};
143
144static struct mtk_icc_node ufs = {
145 .name = "ufs",
146 .id = MASTER_UFS,
147 .ep = 0,
148 .num_links = 1,
149 .links = { SLAVE_DDR_EMI }
150};
151
152static struct mtk_icc_node pcie0 = {
153 .name = "pcie0",
154 .id = MASTER_PCIE_0,
155 .ep = 0,
156 .num_links = 1,
157 .links = { SLAVE_DDR_EMI }
158};
159
160static struct mtk_icc_node pcie1 = {
161 .name = "pcie1",
162 .id = MASTER_PCIE_1,
163 .ep = 0,
164 .num_links = 1,
165 .links = { SLAVE_DDR_EMI }
166};
167
168static struct mtk_icc_node usb = {
169 .name = "usb",
170 .id = MASTER_USB,
171 .ep = 0,
172 .num_links = 1,
173 .links = { SLAVE_DDR_EMI }
174};
175
176static struct mtk_icc_node wifi = {
177 .name = "wifi",
178 .id = MASTER_WIFI,
179 .ep = 0,
180 .num_links = 1,
181 .links = { SLAVE_DDR_EMI }
182};
183
184static struct mtk_icc_node bt = {
185 .name = "bt",
186 .id = MASTER_BT,
187 .ep = 0,
188 .num_links = 1,
189 .links = { SLAVE_DDR_EMI }
190};
191
192static struct mtk_icc_node netsys = {
193 .name = "netsys",
194 .id = MASTER_NETSYS,
195 .ep = 0,
196 .num_links = 1,
197 .links = { SLAVE_DDR_EMI }
198};
199
200static struct mtk_icc_node dbgif = {
201 .name = "dbgif",
202 .id = MASTER_DBGIF,
203 .ep = 0,
204 .num_links = 1,
205 .links = { SLAVE_DDR_EMI }
206};
207
208static struct mtk_icc_node hrt_ddr_emi = {
209 .name = "hrt-ddr-emi",
210 .id = SLAVE_HRT_DDR_EMI,
211 .ep = 2,
212};
213
214static struct mtk_icc_node hrt_mmsys = {
215 .name = "hrt-mmsys",
216 .id = MASTER_HRT_MMSYS,
217 .ep = 0,
218 .num_links = 1,
219 .links = { SLAVE_HRT_DDR_EMI }
220};
221
222static struct mtk_icc_node hrt_mm_disp = {
223 .name = "hrt-mm-disp",
224 .id = MASTER_HRT_MM_DISP,
225 .ep = 0,
226 .num_links = 1,
227 .links = { MASTER_HRT_MMSYS }
228};
229
230static struct mtk_icc_node hrt_mm_vdec = {
231 .name = "hrt-mm-vdec",
232 .id = MASTER_HRT_MM_VDEC,
233 .ep = 0,
234 .num_links = 1,
235 .links = { MASTER_HRT_MMSYS }
236};
237
238static struct mtk_icc_node hrt_mm_venc = {
239 .name = "hrt-mm-venc",
240 .id = MASTER_HRT_MM_VENC,
241 .ep = 0,
242 .num_links = 1,
243 .links = { MASTER_HRT_MMSYS }
244};
245
246static struct mtk_icc_node hrt_mm_cam = {
247 .name = "hrt-mm-cam",
248 .id = MASTER_HRT_MM_CAM,
249 .ep = 0,
250 .num_links = 1,
251 .links = { MASTER_HRT_MMSYS }
252};
253
254static struct mtk_icc_node hrt_mm_img = {
255 .name = "hrt-mm-img",
256 .id = MASTER_HRT_MM_IMG,
257 .ep = 0,
258 .num_links = 1,
259 .links = { MASTER_HRT_MMSYS }
260};
261
262static struct mtk_icc_node hrt_mm_mdp = {
263 .name = "hrt-mm-mdp",
264 .id = MASTER_HRT_MM_MDP,
265 .ep = 0,
266 .num_links = 1,
267 .links = { MASTER_HRT_MMSYS }
268};
269
270static struct mtk_icc_node hrt_dbgif = {
271 .name = "hrt-dbgif",
272 .id = MASTER_HRT_DBGIF,
273 .ep = 0,
274 .num_links = 1,
275 .links = { SLAVE_HRT_DDR_EMI }
276};
277
278static struct mtk_icc_node *mt8195_emi_icc_nodes[] = {
279 [SLAVE_DDR_EMI] = &ddr_emi,
280 [MASTER_MCUSYS] = &mcusys,
281 [MASTER_GPUSYS] = &gpu,
282 [MASTER_MMSYS] = &mmsys,
283 [MASTER_MM_VPU] = &mm_vpu,
284 [MASTER_MM_DISP] = &mm_disp,
285 [MASTER_MM_VDEC] = &mm_vdec,
286 [MASTER_MM_VENC] = &mm_venc,
287 [MASTER_MM_CAM] = &mm_cam,
288 [MASTER_MM_IMG] = &mm_img,
289 [MASTER_MM_MDP] = &mm_mdp,
290 [MASTER_VPUSYS] = &vpusys,
291 [MASTER_VPU_0] = &vpu_port0,
292 [MASTER_VPU_1] = &vpu_port1,
293 [MASTER_MDLASYS] = &mdlasys,
294 [MASTER_MDLA_0] = &mdla_port0,
295 [MASTER_UFS] = &ufs,
296 [MASTER_PCIE_0] = &pcie0,
297 [MASTER_PCIE_1] = &pcie1,
298 [MASTER_USB] = &usb,
299 [MASTER_WIFI] = &wifi,
300 [MASTER_BT] = &bt,
301 [MASTER_NETSYS] = &netsys,
302 [MASTER_DBGIF] = &dbgif,
303 [SLAVE_HRT_DDR_EMI] = &hrt_ddr_emi,
304 [MASTER_HRT_MMSYS] = &hrt_mmsys,
305 [MASTER_HRT_MM_DISP] = &hrt_mm_disp,
306 [MASTER_HRT_MM_VDEC] = &hrt_mm_vdec,
307 [MASTER_HRT_MM_VENC] = &hrt_mm_venc,
308 [MASTER_HRT_MM_CAM] = &hrt_mm_cam,
309 [MASTER_HRT_MM_IMG] = &hrt_mm_img,
310 [MASTER_HRT_MM_MDP] = &hrt_mm_mdp,
311 [MASTER_HRT_DBGIF] = &hrt_dbgif
312};
313
314static struct mtk_icc_desc mt8195_emi_icc = {
315 .nodes = mt8195_emi_icc_nodes,
316 .num_nodes = ARRAY_SIZE(mt8195_emi_icc_nodes),
317};
318
319static const struct of_device_id mtk_mt8195_emi_icc_of_match[] = {
320 { .compatible = "mediatek,mt8195-emi", .data = &mt8195_emi_icc },
321 { /* sentinel */ },
322};
323MODULE_DEVICE_TABLE(of, mtk_mt8195_emi_icc_of_match);
324
325static struct platform_driver mtk_emi_icc_mt8195_driver = {
326 .driver = {
327 .name = "emi-icc-mt8195",
328 .of_match_table = mtk_mt8195_emi_icc_of_match,
329 .sync_state = icc_sync_state,
330 },
331 .probe = mtk_emi_icc_probe,
332 .remove = mtk_emi_icc_remove,
333
334};
335module_platform_driver(mtk_emi_icc_mt8195_driver);
336
337MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>");
338MODULE_DESCRIPTION("MediaTek MT8195 EMI ICC driver");
339MODULE_LICENSE("GPL");