drivers/interconnect/mediatek/mt8183.c

   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,mt8183.h>
  15
  16 #include "icc-emi.h"
  17
  18 static struct mtk_icc_node ddr_emi = {
  19         .name = "ddr-emi",
  20         .id = SLAVE_DDR_EMI,
  21         .ep = 1,
  22 };
  23
  24 static 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
  32 static struct mtk_icc_node gpu = {
  33         .name = "gpu",
  34         .id = MASTER_MFG,
  35         .ep = 0,
  36         .num_links = 1,
  37         .links = { SLAVE_DDR_EMI }
  38 };
  39
  40 static 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
  48 static 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
  56 static 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
  64 static 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
  72 static 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
  80 static 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
  88 static 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
  96 static 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
 104 static struct mtk_icc_node *mt8183_emi_icc_nodes[] = {
 105         [SLAVE_DDR_EMI] = &ddr_emi,
 106         [MASTER_MCUSYS] = &mcusys,
 107         [MASTER_MFG] = &gpu,
 108         [MASTER_MMSYS] = &mmsys,
 109         [MASTER_MM_VPU] = &mm_vpu,
 110         [MASTER_MM_DISP] = &mm_disp,
 111         [MASTER_MM_VDEC] = &mm_vdec,
 112         [MASTER_MM_VENC] = &mm_venc,
 113         [MASTER_MM_CAM] = &mm_cam,
 114         [MASTER_MM_IMG] = &mm_img,
 115         [MASTER_MM_MDP] = &mm_mdp
 116 };
 117
 118 static const struct mtk_icc_desc mt8183_emi_icc = {
 119         .nodes = mt8183_emi_icc_nodes,
 120         .num_nodes = ARRAY_SIZE(mt8183_emi_icc_nodes),
 121 };
 122
 123 static const struct of_device_id mtk_mt8183_emi_icc_of_match[] = {
 124         { .compatible = "mediatek,mt8183-emi", .data = &mt8183_emi_icc },
 125         { /* sentinel */ },
 126 };
 127 MODULE_DEVICE_TABLE(of, mtk_mt8183_emi_icc_of_match);
 128
 129 static struct platform_driver mtk_emi_icc_mt8183_driver = {
 130         .driver = {
 131                 .name = "emi-icc-mt8183",
 132                 .of_match_table = mtk_mt8183_emi_icc_of_match,
 133                 .sync_state = icc_sync_state,
 134         },
 135         .probe = mtk_emi_icc_probe,
 136         .remove = mtk_emi_icc_remove,
 137
 138 };
 139 module_platform_driver(mtk_emi_icc_mt8183_driver);
 140
 141 MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>");
 142 MODULE_DESCRIPTION("MediaTek MT8183 EMI ICC driver");
 143 MODULE_LICENSE("GPL");