diff options
Diffstat (limited to 'drivers/spi/spi-butterfly.c')
| -rw-r--r-- | drivers/spi/spi-butterfly.c | 51 |
1 files changed, 15 insertions, 36 deletions
diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c index 22a31e4a1a11..84eb454ed443 100644 --- a/drivers/spi/spi-butterfly.c +++ b/drivers/spi/spi-butterfly.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * parport-to-butterfly adapter * * Copyright (C) 2005 David Brownell - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> #include <linux/init.h> @@ -32,7 +23,7 @@ * with a battery powered AVR microcontroller and lots of goodies. You * can use GCC to develop firmware for this. * - * See Documentation/spi/butterfly for information about how to build + * See Documentation/spi/butterfly.rst for information about how to build * and use this custom parallel port cable. */ @@ -144,9 +135,9 @@ static void butterfly_chipselect(struct spi_device *spi, int value) static u32 butterfly_txrx_word_mode0(struct spi_device *spi, unsigned nsecs, u32 word, - u8 bits) + u8 bits, unsigned flags) { - return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); + return bitbang_txrx_be_cpha0(spi, nsecs, 0, flags, word, bits); } /*----------------------------------------------------------------------*/ @@ -187,7 +178,7 @@ static void butterfly_attach(struct parport *p) struct pardevice *pd; int status; struct butterfly *pp; - struct spi_master *master; + struct spi_controller *host; struct device *dev = p->physport->dev; struct pardev_cb butterfly_cb; @@ -198,12 +189,12 @@ static void butterfly_attach(struct parport *p) * and no way to be selective about what it binds to. */ - master = spi_alloc_master(dev, sizeof(*pp)); - if (!master) { + host = spi_alloc_host(dev, sizeof(*pp)); + if (!host) { status = -ENOMEM; goto done; } - pp = spi_master_get_devdata(master); + pp = spi_controller_get_devdata(host); /* * SPI and bitbang hookup @@ -211,10 +202,10 @@ static void butterfly_attach(struct parport *p) * use default setup(), cleanup(), and transfer() methods; and * only bother implementing mode 0. Start it later. */ - master->bus_num = 42; - master->num_chipselect = 2; + host->bus_num = 42; + host->num_chipselect = 2; - pp->bitbang.master = master; + pp->bitbang.ctlr = host; pp->bitbang.chipselect = butterfly_chipselect; pp->bitbang.txrx_word[SPI_MODE_0] = butterfly_txrx_word_mode0; @@ -272,7 +263,7 @@ static void butterfly_attach(struct parport *p) pp->info[0].platform_data = &flash; pp->info[0].chip_select = 1; pp->info[0].controller_data = pp; - pp->dataflash = spi_new_device(pp->bitbang.master, &pp->info[0]); + pp->dataflash = spi_new_device(pp->bitbang.ctlr, &pp->info[0]); if (pp->dataflash) pr_debug("%s: dataflash at %s\n", p->name, dev_name(&pp->dataflash->dev)); @@ -289,7 +280,7 @@ clean2: clean1: parport_unregister_device(pd); clean0: - spi_master_put(pp->bitbang.master); + spi_controller_put(host); done: pr_debug("%s: butterfly probe, fail %d\n", p->name, status); } @@ -317,27 +308,15 @@ static void butterfly_detach(struct parport *p) parport_release(pp->pd); parport_unregister_device(pp->pd); - spi_master_put(pp->bitbang.master); + spi_controller_put(pp->bitbang.ctlr); } static struct parport_driver butterfly_driver = { .name = "spi_butterfly", .match_port = butterfly_attach, .detach = butterfly_detach, - .devmodel = true, }; - -static int __init butterfly_init(void) -{ - return parport_register_driver(&butterfly_driver); -} -device_initcall(butterfly_init); - -static void __exit butterfly_exit(void) -{ - parport_unregister_driver(&butterfly_driver); -} -module_exit(butterfly_exit); +module_parport_driver(butterfly_driver); MODULE_DESCRIPTION("Parport Adapter driver for AVR Butterfly"); MODULE_LICENSE("GPL"); |