| 1 | // SPDX-License-Identifier: GPL-2.0+ |
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| 2 | // Platform driver for Loongson SPI Support |
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| 3 | // Copyright (C) 2023 Loongson Technology Corporation Limited |
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| 4 | |
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| 5 | #include <linux/err.h> |
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| 6 | #include <linux/mod_devicetable.h> |
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| 7 | #include <linux/platform_device.h> |
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| 8 | |
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| 9 | #include "spi-loongson.h" |
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| 10 | |
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| 11 | static int loongson_spi_platform_probe(struct platform_device *pdev) |
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| 12 | { |
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| 13 | int ret; |
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| 14 | void __iomem *reg_base; |
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| 15 | struct device *dev = &pdev->dev; |
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| 16 | |
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| 17 | reg_base = devm_platform_ioremap_resource(pdev, index: 0); |
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| 18 | if (IS_ERR(ptr: reg_base)) |
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| 19 | return PTR_ERR(ptr: reg_base); |
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| 20 | |
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| 21 | ret = loongson_spi_init_controller(dev, reg: reg_base); |
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| 22 | if (ret) |
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| 23 | return dev_err_probe(dev, err: ret, fmt: "failed to initialize controller\n" ); |
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| 24 | |
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| 25 | return 0; |
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| 26 | } |
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| 27 | |
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| 28 | static const struct of_device_id loongson_spi_id_table[] = { |
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| 29 | { .compatible = "loongson,ls2k1000-spi" }, |
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| 30 | { } |
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| 31 | }; |
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| 32 | MODULE_DEVICE_TABLE(of, loongson_spi_id_table); |
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| 33 | |
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| 34 | static struct platform_driver loongson_spi_plat_driver = { |
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| 35 | .probe = loongson_spi_platform_probe, |
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| 36 | .driver = { |
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| 37 | .name = "loongson-spi" , |
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| 38 | .bus = &platform_bus_type, |
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| 39 | .pm = &loongson_spi_dev_pm_ops, |
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| 40 | .of_match_table = loongson_spi_id_table, |
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| 41 | }, |
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| 42 | }; |
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| 43 | module_platform_driver(loongson_spi_plat_driver); |
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| 44 | |
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| 45 | MODULE_DESCRIPTION("Loongson spi platform driver" ); |
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| 46 | MODULE_LICENSE("GPL" ); |
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| 47 | MODULE_IMPORT_NS("SPI_LOONGSON_CORE" ); |
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| 48 | |
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