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		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
28static int sun50i_de2_bus_remove(struct platform_device *pdev)
29{
30	sunxi_sram_release(&pdev->dev);
31	return 0;
32}
33
34static const struct of_device_id sun50i_de2_bus_of_match[] = {
35	{ .compatible = "allwinner,sun50i-a64-de2", },
36	{ /* sentinel */ }
37};
38
39static 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
48builtin_platform_driver(sun50i_de2_bus_driver);
49