Quelle  spi-loongson-plat.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
// Platform driver for Loongson SPI Support
// Copyright (C) 2023 Loongson Technology Corporation Limited

#include <linux/err.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>

#include "spi-loongson.h"

static int loongson_spi_platform_probe(struct platform_device *pdev)
{
 int ret;
 void __iomem *reg_base;
 struct device *dev = &pdev->dev;

 reg_base = devm_platform_ioremap_resource(pdev, 0);
 if (IS_ERR(reg_base))
  return PTR_ERR(reg_base);

 ret = loongson_spi_init_controller(dev, reg_base);
 if (ret)
  return dev_err_probe(dev, ret, "failed to initialize controller\n");

 return 0;
}

static const struct of_device_id loongson_spi_id_table[] = {
 { .compatible = "loongson,ls2k1000-spi" },
 { }
};
MODULE_DEVICE_TABLE(of, loongson_spi_id_table);

static struct platform_driver loongson_spi_plat_driver = {
 .probe = loongson_spi_platform_probe,
 .driver = {
  .name = "loongson-spi",
  .bus = &platform_bus_type,
  .pm = &loongson_spi_dev_pm_ops,
  .of_match_table = loongson_spi_id_table,
 },
};
module_platform_driver(loongson_spi_plat_driver);

MODULE_DESCRIPTION("Loongson spi platform driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("SPI_LOONGSON_CORE");