diff options
Diffstat (limited to 'drivers/staging/wilc1000/wilc_sdio.c')
| -rw-r--r-- | drivers/staging/wilc1000/wilc_sdio.c | 57 |
1 files changed, 32 insertions, 25 deletions
diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c index 4ab43f97646a..b2080d8b801f 100644 --- a/drivers/staging/wilc1000/wilc_sdio.c +++ b/drivers/staging/wilc1000/wilc_sdio.c @@ -1,12 +1,11 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Copyright (c) Atmel Corporation. All rights reserved. - * - * Module Name: wilc_sdio.c + * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. + * All rights reserved. */ #include <linux/mmc/sdio_func.h> -#include <linux/of_gpio.h> +#include <linux/mmc/host.h> #include "wilc_wfi_netdevice.h" @@ -108,24 +107,28 @@ static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) { struct wilc *wilc; - int gpio, ret; + int ret; + struct gpio_desc *gpio = NULL; - gpio = -1; if (IS_ENABLED(CONFIG_WILC1000_HW_OOB_INTR)) { - gpio = of_get_gpio(func->dev.of_node, 0); - if (gpio < 0) - gpio = GPIO_NUM; + gpio = gpiod_get(&func->dev, "irq", GPIOD_IN); + if (IS_ERR(gpio)) { + /* get the GPIO descriptor from hardcode GPIO number */ + gpio = gpio_to_desc(GPIO_NUM); + if (!gpio) + dev_err(&func->dev, "failed to get irq gpio\n"); + } } dev_dbg(&func->dev, "Initializing netdev\n"); - ret = wilc_netdev_init(&wilc, &func->dev, HIF_SDIO, gpio, - &wilc_hif_sdio); + ret = wilc_netdev_init(&wilc, &func->dev, HIF_SDIO, &wilc_hif_sdio); if (ret) { dev_err(&func->dev, "Couldn't initialize netdev\n"); return ret; } sdio_set_drvdata(func, wilc); wilc->dev = &func->dev; + wilc->gpio_irq = gpio; dev_info(&func->dev, "Driver Initializing success\n"); return 0; @@ -133,7 +136,12 @@ static int linux_sdio_probe(struct sdio_func *func, static void linux_sdio_remove(struct sdio_func *func) { - wilc_netdev_cleanup(sdio_get_drvdata(func)); + struct wilc *wilc = sdio_get_drvdata(func); + + /* free the GPIO in module remove */ + if (wilc->gpio_irq) + gpiod_put(wilc->gpio_irq); + wilc_netdev_cleanup(wilc); } static int sdio_reset(struct wilc *wilc) @@ -199,21 +207,28 @@ static int wilc_sdio_resume(struct device *dev) return 0; } +static const struct of_device_id wilc_of_match[] = { + { .compatible = "microchip,wilc1000-sdio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, wilc_of_match); + static const struct dev_pm_ops wilc_sdio_pm_ops = { .suspend = wilc_sdio_suspend, .resume = wilc_sdio_resume, }; -static struct sdio_driver wilc1000_sdio_driver = { +static struct sdio_driver wilc_sdio_driver = { .name = SDIO_MODALIAS, .id_table = wilc_sdio_ids, .probe = linux_sdio_probe, .remove = linux_sdio_remove, .drv = { .pm = &wilc_sdio_pm_ops, + .of_match_table = wilc_of_match, } }; -module_driver(wilc1000_sdio_driver, +module_driver(wilc_sdio_driver, sdio_register_driver, sdio_unregister_driver); MODULE_LICENSE("GPL"); @@ -368,7 +383,7 @@ static int sdio_write_reg(struct wilc *wilc, u32 addr, u32 data) struct sdio_func *func = dev_to_sdio_func(wilc->dev); int ret; - data = cpu_to_le32(data); + cpu_to_le32s(&data); if (addr >= 0xf0 && addr <= 0xff) { struct sdio_cmd52 cmd; @@ -547,7 +562,7 @@ static int sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data) } } - *data = cpu_to_le32(*data); + le32_to_cpus(data); return 1; @@ -793,9 +808,6 @@ static int sdio_read_size(struct wilc *wilc, u32 *size) wilc_sdio_cmd52(wilc, &cmd); tmp = cmd.data; - /* cmd.read_write = 0; */ - /* cmd.function = 0; */ - /* cmd.raw = 0; */ cmd.address = 0xf3; cmd.data = 0; wilc_sdio_cmd52(wilc, &cmd); @@ -1080,12 +1092,7 @@ static int sdio_sync_ext(struct wilc *wilc, int nint) return 1; } -/******************************************** - * - * Global sdio HIF function table - * - ********************************************/ - +/* Global sdio HIF function table */ static const struct wilc_hif_func wilc_hif_sdio = { .hif_init = sdio_init, .hif_deinit = sdio_deinit, |