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, index: 0); |
18 | if (IS_ERR(ptr: reg_base)) |
19 | return PTR_ERR(ptr: reg_base); |
20 | |
21 | ret = loongson_spi_init_controller(dev, reg: reg_base); |
22 | if (ret) |
23 | return dev_err_probe(dev, err: ret, fmt: "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); |
48 | |