drivers/spi/spi-loongson-plat.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 // Platform driver for Loongson SPI Support
   3 // Copyright (C) 2023 Loongson Technology Corporation Limited
   4
   5 #include <linux/err.h>
   6 #include <linux/mod_devicetable.h>
   7 #include <linux/platform_device.h>
   8
   9 #include "spi-loongson.h"
  10
  11 static int loongson_spi_platform_probe(struct platform_device *pdev)
  12 {
  13         int ret;
  14         void __iomem *reg_base;
  15         struct device *dev = &pdev->dev;
  16
  17         reg_base = devm_platform_ioremap_resource(pdev, 0);
  18         if (IS_ERR(reg_base))
  19                 return PTR_ERR(reg_base);
  20
  21         ret = loongson_spi_init_controller(dev, reg_base);
  22         if (ret)
  23                 return dev_err_probe(dev, ret, "failed to initialize controller\n");
  24
  25         return 0;
  26 }
  27
  28 static const struct of_device_id loongson_spi_id_table[] = {
  29         { .compatible = "loongson,ls2k1000-spi" },
  30         { }
  31 };
  32 MODULE_DEVICE_TABLE(of, loongson_spi_id_table);
  33
  34 static struct platform_driver loongson_spi_plat_driver = {
  35         .probe = loongson_spi_platform_probe,
  36         .driver = {
  37                 .name   = "loongson-spi",
  38                 .bus = &platform_bus_type,
  39                 .pm = &loongson_spi_dev_pm_ops,
  40                 .of_match_table = loongson_spi_id_table,
  41         },
  42 };
  43 module_platform_driver(loongson_spi_plat_driver);
  44
  45 MODULE_DESCRIPTION("Loongson spi platform driver");
  46 MODULE_LICENSE("GPL");
  47 MODULE_IMPORT_NS(SPI_LOONGSON_CORE);