1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2014 MediaTek Inc.
4 * Author: James Liao <jamesjj.liao@mediatek.com>
7 #include <linux/device.h>
9 #include <linux/of_device.h>
10 #include <linux/platform_device.h>
11 #include <linux/soc/mediatek/mtk-mmsys.h>
13 #include "mtk-mmsys.h"
14 #include "mt8167-mmsys.h"
15 #include "mt8183-mmsys.h"
17 static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
18 .clk_driver = "clk-mt2701-mm",
19 .routes = mmsys_default_routing_table,
20 .num_routes = ARRAY_SIZE(mmsys_default_routing_table),
23 static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
24 .clk_driver = "clk-mt2712-mm",
25 .routes = mmsys_default_routing_table,
26 .num_routes = ARRAY_SIZE(mmsys_default_routing_table),
29 static const struct mtk_mmsys_driver_data mt6779_mmsys_driver_data = {
30 .clk_driver = "clk-mt6779-mm",
33 static const struct mtk_mmsys_driver_data mt6797_mmsys_driver_data = {
34 .clk_driver = "clk-mt6797-mm",
37 static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = {
38 .clk_driver = "clk-mt8167-mm",
39 .routes = mt8167_mmsys_routing_table,
40 .num_routes = ARRAY_SIZE(mt8167_mmsys_routing_table),
43 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
44 .clk_driver = "clk-mt8173-mm",
45 .routes = mmsys_default_routing_table,
46 .num_routes = ARRAY_SIZE(mmsys_default_routing_table),
49 static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
50 .clk_driver = "clk-mt8183-mm",
51 .routes = mmsys_mt8183_routing_table,
52 .num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
57 const struct mtk_mmsys_driver_data *data;
60 void mtk_mmsys_ddp_connect(struct device *dev,
61 enum mtk_ddp_comp_id cur,
62 enum mtk_ddp_comp_id next)
64 struct mtk_mmsys *mmsys = dev_get_drvdata(dev);
65 const struct mtk_mmsys_routes *routes = mmsys->data->routes;
69 for (i = 0; i < mmsys->data->num_routes; i++)
70 if (cur == routes[i].from_comp && next == routes[i].to_comp) {
71 reg = readl_relaxed(mmsys->regs + routes[i].addr) | routes[i].val;
72 writel_relaxed(reg, mmsys->regs + routes[i].addr);
75 EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_connect);
77 void mtk_mmsys_ddp_disconnect(struct device *dev,
78 enum mtk_ddp_comp_id cur,
79 enum mtk_ddp_comp_id next)
81 struct mtk_mmsys *mmsys = dev_get_drvdata(dev);
82 const struct mtk_mmsys_routes *routes = mmsys->data->routes;
86 for (i = 0; i < mmsys->data->num_routes; i++)
87 if (cur == routes[i].from_comp && next == routes[i].to_comp) {
88 reg = readl_relaxed(mmsys->regs + routes[i].addr) & ~routes[i].val;
89 writel_relaxed(reg, mmsys->regs + routes[i].addr);
92 EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect);
94 static int mtk_mmsys_probe(struct platform_device *pdev)
96 struct device *dev = &pdev->dev;
97 struct platform_device *clks;
98 struct platform_device *drm;
99 struct mtk_mmsys *mmsys;
102 mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL);
106 mmsys->regs = devm_platform_ioremap_resource(pdev, 0);
107 if (IS_ERR(mmsys->regs)) {
108 ret = PTR_ERR(mmsys->regs);
109 dev_err(dev, "Failed to ioremap mmsys registers: %d\n", ret);
113 mmsys->data = of_device_get_match_data(&pdev->dev);
114 platform_set_drvdata(pdev, mmsys);
116 clks = platform_device_register_data(&pdev->dev, mmsys->data->clk_driver,
117 PLATFORM_DEVID_AUTO, NULL, 0);
119 return PTR_ERR(clks);
121 drm = platform_device_register_data(&pdev->dev, "mediatek-drm",
122 PLATFORM_DEVID_AUTO, NULL, 0);
124 platform_device_unregister(clks);
131 static const struct of_device_id of_match_mtk_mmsys[] = {
133 .compatible = "mediatek,mt2701-mmsys",
134 .data = &mt2701_mmsys_driver_data,
137 .compatible = "mediatek,mt2712-mmsys",
138 .data = &mt2712_mmsys_driver_data,
141 .compatible = "mediatek,mt6779-mmsys",
142 .data = &mt6779_mmsys_driver_data,
145 .compatible = "mediatek,mt6797-mmsys",
146 .data = &mt6797_mmsys_driver_data,
149 .compatible = "mediatek,mt8167-mmsys",
150 .data = &mt8167_mmsys_driver_data,
153 .compatible = "mediatek,mt8173-mmsys",
154 .data = &mt8173_mmsys_driver_data,
157 .compatible = "mediatek,mt8183-mmsys",
158 .data = &mt8183_mmsys_driver_data,
163 static struct platform_driver mtk_mmsys_drv = {
166 .of_match_table = of_match_mtk_mmsys,
168 .probe = mtk_mmsys_probe,
171 builtin_platform_driver(mtk_mmsys_drv);