Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[platform/kernel/linux-starfive.git] / drivers / bus / sun50i-de2.c
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);
18         if (ret) {
19                 dev_err(&pdev->dev, "Error couldn't map SRAM to device\n");
20                 return ret;
21         }
22
23         of_platform_populate(np, NULL, NULL, &pdev->dev);
24
25         return 0;
26 }
27
28 static int sun50i_de2_bus_remove(struct platform_device *pdev)
29 {
30         sunxi_sram_release(&pdev->dev);
31         return 0;
32 }
33
34 static const struct of_device_id sun50i_de2_bus_of_match[] = {
35         { .compatible = "allwinner,sun50i-a64-de2", },
36         { /* sentinel */ }
37 };
38
39 static struct platform_driver sun50i_de2_bus_driver = {
40         .probe = sun50i_de2_bus_probe,
41         .remove = sun50i_de2_bus_remove,
42         .driver = {
43                 .name = "sun50i-de2-bus",
44                 .of_match_table = sun50i_de2_bus_of_match,
45         },
46 };
47
48 builtin_platform_driver(sun50i_de2_bus_driver);