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1// SPDX-License-Identifier: GPL-2.02/*3 * Allwinner A64 Display Engine 2.0 Bus Driver4 *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