48 lines
1.2 KiB
C
48 lines
1.2 KiB
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);
|