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
12static 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		return dev_err_probe(&pdev->dev, ret,
20				     "Couldn't map SRAM to device\n");
21
22	of_platform_populate(np, NULL, NULL, &pdev->dev);
23
24	return 0;
25}
26
27static void sun50i_de2_bus_remove(struct platform_device *pdev)
28{
29	sunxi_sram_release(&pdev->dev);
30}
31
32static const struct of_device_id sun50i_de2_bus_of_match[] = {
33	{ .compatible = "allwinner,sun50i-a64-de2", },
34	{ /* sentinel */ }
35};
36
37static struct platform_driver sun50i_de2_bus_driver = {
38	.probe = sun50i_de2_bus_probe,
39	.remove_new = sun50i_de2_bus_remove,
40	.driver = {
41		.name = "sun50i-de2-bus",
42		.of_match_table = sun50i_de2_bus_of_match,
43	},
44};
45
46builtin_platform_driver(sun50i_de2_bus_driver);
47