cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sun50i-de2.c (1083B)

      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 int sun50i_de2_bus_remove(struct platform_device *pdev)
     28{
     29	sunxi_sram_release(&pdev->dev);
     30	return 0;
     31}
     32
     33static const struct of_device_id sun50i_de2_bus_of_match[] = {
     34	{ .compatible = "allwinner,sun50i-a64-de2", },
     35	{ /* sentinel */ }
     36};
     37
     38static struct platform_driver sun50i_de2_bus_driver = {
     39	.probe = sun50i_de2_bus_probe,
     40	.remove = sun50i_de2_bus_remove,
     41	.driver = {
     42		.name = "sun50i-de2-bus",
     43		.of_match_table = sun50i_de2_bus_of_match,
     44	},
     45};
     46
     47builtin_platform_driver(sun50i_de2_bus_driver);