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1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * Allwinner A64 Display Engine 2.0 Bus Driver | |
4 | * | |
5 | * Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io> | |
6 | */ | |
7 | ||
8 | #include <linux/of_platform.h> | |
9 | #include <linux/platform_device.h> | |
10 | #include <linux/soc/sunxi/sunxi_sram.h> | |
11 | ||
12 | static int sun50i_de2_bus_probe(struct platform_device *pdev) | |
13 | { | |
14 | struct device_node *np = pdev->dev.of_node; | |
15 | int ret; | |
16 | ||
17 | ret = sunxi_sram_claim(&pdev->dev); | |
50ac48ae JS |
18 | if (ret) |
19 | return dev_err_probe(&pdev->dev, ret, | |
20 | "Couldn't map SRAM to device\n"); | |
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21 | |
22 | of_platform_populate(np, NULL, NULL, &pdev->dev); | |
23 | ||
24 | return 0; | |
25 | } | |
26 | ||
8b763a22 | 27 | static void sun50i_de2_bus_remove(struct platform_device *pdev) |
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28 | { |
29 | sunxi_sram_release(&pdev->dev); | |
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30 | } |
31 | ||
32 | static const struct of_device_id sun50i_de2_bus_of_match[] = { | |
33 | { .compatible = "allwinner,sun50i-a64-de2", }, | |
34 | { /* sentinel */ } | |
35 | }; | |
36 | ||
37 | static struct platform_driver sun50i_de2_bus_driver = { | |
38 | .probe = sun50i_de2_bus_probe, | |
8b763a22 | 39 | .remove_new = sun50i_de2_bus_remove, |
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40 | .driver = { |
41 | .name = "sun50i-de2-bus", | |
42 | .of_match_table = sun50i_de2_bus_of_match, | |
43 | }, | |
44 | }; | |
45 | ||
46 | builtin_platform_driver(sun50i_de2_bus_driver); |