From 4ef1bec4e4f393aa96d2b5345bb08baabaec8ee1 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Sun, 1 May 2016 18:44:26 -0400 Subject: [PATCH] watchdog: ebc-c384_wdt: Utilize the ISA bus driver The WinSystems EBC-C384 watchdog timer is controlled via ISA bus communication. As such, the ISA bus driver is more appropriate than the platform driver for the WinSystems EBC-C384 watchdog timer driver. Cc: Wim Van Sebroeck Acked-by: Guenter Roeck Signed-off-by: William Breathitt Gray Signed-off-by: Greg Kroah-Hartman --- drivers/watchdog/Kconfig | 2 +- drivers/watchdog/ebc-c384_wdt.c | 43 ++++++++------------------------- 2 files changed, 11 insertions(+), 34 deletions(-) diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index fb947655badd..0aefe2510e42 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -738,7 +738,7 @@ config ALIM7101_WDT config EBC_C384_WDT tristate "WinSystems EBC-C384 Watchdog Timer" - depends on X86 + depends on X86 && ISA select WATCHDOG_CORE help Enables watchdog timer support for the watchdog timer on the diff --git a/drivers/watchdog/ebc-c384_wdt.c b/drivers/watchdog/ebc-c384_wdt.c index 77fda0b4b90e..4b849b8e37c2 100644 --- a/drivers/watchdog/ebc-c384_wdt.c +++ b/drivers/watchdog/ebc-c384_wdt.c @@ -16,10 +16,10 @@ #include #include #include +#include #include #include #include -#include #include #include @@ -95,9 +95,8 @@ static const struct watchdog_info ebc_c384_wdt_info = { .identity = MODULE_NAME }; -static int __init ebc_c384_wdt_probe(struct platform_device *pdev) +static int ebc_c384_wdt_probe(struct device *dev, unsigned int id) { - struct device *dev = &pdev->dev; struct watchdog_device *wdd; if (!devm_request_region(dev, BASE_ADDR, ADDR_EXTENT, dev_name(dev))) { @@ -122,61 +121,39 @@ static int __init ebc_c384_wdt_probe(struct platform_device *pdev) dev_warn(dev, "Invalid timeout (%u seconds), using default (%u seconds)\n", timeout, WATCHDOG_TIMEOUT); - platform_set_drvdata(pdev, wdd); + dev_set_drvdata(dev, wdd); return watchdog_register_device(wdd); } -static int ebc_c384_wdt_remove(struct platform_device *pdev) +static int ebc_c384_wdt_remove(struct device *dev, unsigned int id) { - struct watchdog_device *wdd = platform_get_drvdata(pdev); + struct watchdog_device *wdd = dev_get_drvdata(dev); watchdog_unregister_device(wdd); return 0; } -static struct platform_driver ebc_c384_wdt_driver = { +static struct isa_driver ebc_c384_wdt_driver = { + .probe = ebc_c384_wdt_probe, .driver = { .name = MODULE_NAME }, .remove = ebc_c384_wdt_remove }; -static struct platform_device *ebc_c384_wdt_device; - static int __init ebc_c384_wdt_init(void) { - int err; - if (!dmi_match(DMI_BOARD_NAME, "EBC-C384 SBC")) return -ENODEV; - ebc_c384_wdt_device = platform_device_alloc(MODULE_NAME, -1); - if (!ebc_c384_wdt_device) - return -ENOMEM; - - err = platform_device_add(ebc_c384_wdt_device); - if (err) - goto err_platform_device; - - err = platform_driver_probe(&ebc_c384_wdt_driver, ebc_c384_wdt_probe); - if (err) - goto err_platform_driver; - - return 0; - -err_platform_driver: - platform_device_del(ebc_c384_wdt_device); -err_platform_device: - platform_device_put(ebc_c384_wdt_device); - return err; + return isa_register_driver(&ebc_c384_wdt_driver, 1); } static void __exit ebc_c384_wdt_exit(void) { - platform_device_unregister(ebc_c384_wdt_device); - platform_driver_unregister(&ebc_c384_wdt_driver); + isa_unregister_driver(&ebc_c384_wdt_driver); } module_init(ebc_c384_wdt_init); @@ -185,4 +162,4 @@ module_exit(ebc_c384_wdt_exit); MODULE_AUTHOR("William Breathitt Gray "); MODULE_DESCRIPTION("WinSystems EBC-C384 watchdog timer driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" MODULE_NAME); +MODULE_ALIAS("isa:" MODULE_NAME);