From 2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c Mon Sep 17 00:00:00 2001 From: Sang-Heon Jeon Date: Mon, 24 Aug 2026 01:18:14 +0900 Subject: coccinelle: alloc_cast: drop removed allocators - pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon Signed-off-by: Julia Lawall --- drivers/fpga/xilinx-spi.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/fpga/xilinx-spi.c (limited to 'drivers/fpga/xilinx-spi.c') diff --git a/drivers/fpga/xilinx-spi.c b/drivers/fpga/xilinx-spi.c new file mode 100644 index 000000000..765626cad --- /dev/null +++ b/drivers/fpga/xilinx-spi.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Xilinx Spartan6 and 7 Series Slave Serial SPI Driver + * + * Copyright (C) 2017 DENX Software Engineering + * + * Anatolij Gustschin + * + * Manage Xilinx FPGA firmware that is loaded over SPI using + * the slave serial configuration interface. + */ + +#include "xilinx-core.h" + +#include +#include +#include + +static int xilinx_spi_write(struct xilinx_fpga_core *core, const char *buf, + size_t count) +{ + struct spi_device *spi = to_spi_device(core->dev); + const char *fw_data = buf; + const char *fw_data_end = fw_data + count; + + while (fw_data < fw_data_end) { + size_t remaining, stride; + int ret; + + remaining = fw_data_end - fw_data; + stride = min_t(size_t, remaining, SZ_4K); + + ret = spi_write(spi, fw_data, stride); + if (ret) { + dev_err(core->dev, "SPI error in firmware write: %d\n", + ret); + return ret; + } + fw_data += stride; + } + + return 0; +} + +static int xilinx_spi_probe(struct spi_device *spi) +{ + struct xilinx_fpga_core *core; + + core = devm_kzalloc(&spi->dev, sizeof(*core), GFP_KERNEL); + if (!core) + return -ENOMEM; + + core->dev = &spi->dev; + core->write = xilinx_spi_write; + + return xilinx_core_probe(core); +} + +static const struct spi_device_id xilinx_spi_ids[] = { + { "fpga-slave-serial" }, + { }, +}; +MODULE_DEVICE_TABLE(spi, xilinx_spi_ids); + +#ifdef CONFIG_OF +static const struct of_device_id xlnx_spi_of_match[] = { + { + .compatible = "xlnx,fpga-slave-serial", + }, + {} +}; +MODULE_DEVICE_TABLE(of, xlnx_spi_of_match); +#endif + +static struct spi_driver xilinx_slave_spi_driver = { + .driver = { + .name = "xlnx-slave-spi", + .of_match_table = of_match_ptr(xlnx_spi_of_match), + }, + .probe = xilinx_spi_probe, + .id_table = xilinx_spi_ids, +}; + +module_spi_driver(xilinx_slave_spi_driver) + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Anatolij Gustschin "); +MODULE_DESCRIPTION("Load Xilinx FPGA firmware over SPI"); -- cgit v1.3.1