diff options
103 files changed, 905 insertions, 407 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt new file mode 100644 index 0000000..08e16f6 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt @@ -0,0 +1,21 @@ +Synopsys Designware Watchdog Timer + +Required Properties: + +- compatible : Should contain "snps,dw-wdt" +- reg : Base address and size of the watchdog timer registers. +- clocks : phandle + clock-specifier for the clock that drives the + watchdog timer. + +Optional Properties: + +- interrupts : The interrupt used for the watchdog timeout warning. + +Example: + + watchdog0: wd@ffd02000 { + compatible = "snps,dw-wdt"; + reg = <0xffd02000 0x1000>; + interrupts = <0 171 4>; + clocks = <&per_base_clk>; + }; diff --git a/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt b/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt index 370dee3..370dee3 100644 --- a/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt new file mode 100644 index 0000000..1169857 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt @@ -0,0 +1,15 @@ +MOXA ART Watchdog timer + +Required properties: + +- compatible : Must be "moxa,moxart-watchdog" +- reg : Should contain registers location and length +- clocks : Should contain phandle for the clock that drives the counter + +Example: + + watchdog: watchdog@98500000 { + compatible = "moxa,moxart-watchdog"; + reg = <0x98500000 0x10>; + clocks = <&coreclk>; + }; diff --git a/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt b/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt new file mode 100644 index 0000000..d7bab3d --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt @@ -0,0 +1,19 @@ +Ralink Watchdog Timers + +Required properties: +- compatible: must be "ralink,rt2880-wdt" +- reg: physical base address of the controller and length of the register range + +Optional properties: +- interrupt-parent: phandle to the INTC device node +- interrupts: Specify the INTC interrupt number + +Example: + + watchdog@120 { + compatible = "ralink,rt2880-wdt"; + reg = <0x120 0x10>; + + interrupt-parent = <&intc>; + interrupts = <1>; + }; diff --git a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt new file mode 100644 index 0000000..9cbc76c --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt @@ -0,0 +1,14 @@ +SiRFSoC Timer and Watchdog Timer(WDT) Controller + +Required properties: +- compatible: "sirf,prima2-tick" +- reg: Address range of tick timer/WDT register set +- interrupts: interrupt number to the cpu + +Example: + +timer@b0020000 { + compatible = "sirf,prima2-tick"; + reg = <0xb0020000 0x1000>; + interrupts = <0>; +}; diff --git a/arch/arm/configs/prima2_defconfig b/arch/arm/configs/prima2_defconfig index 002a1ce..23591db 100644 --- a/arch/arm/configs/prima2_defconfig +++ b/arch/arm/configs/prima2_defconfig @@ -39,6 +39,7 @@ CONFIG_SPI=y CONFIG_SPI_SIRF=y CONFIG_SPI_SPIDEV=y # CONFIG_HWMON is not set +CONFIG_WATCHDOG=y CONFIG_USB_GADGET=y CONFIG_USB_MASS_STORAGE=m CONFIG_MMC=y diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 6df632e..5be6e91 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -392,6 +392,25 @@ config RETU_WATCHDOG To compile this driver as a module, choose M here: the module will be called retu_wdt. +config MOXART_WDT + tristate "MOXART watchdog" + depends on ARCH_MOXART + help + Say Y here to include Watchdog timer support for the watchdog + existing on the MOXA ART SoC series platforms. + + To compile this driver as a module, choose M here: the + module will be called moxart_wdt. + +config SIRFSOC_WATCHDOG + tristate "SiRFSOC watchdog" + depends on ARCH_SIRF + select WATCHDOG_CORE + default y + help + Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When + the watchdog triggers the system will be reset. + # AVR32 Architecture config AT32AP700X_WDT @@ -866,6 +885,7 @@ config VIA_WDT config W83627HF_WDT tristate "W83627HF/W83627DHG Watchdog Timer" depends on X86 + select WATCHDOG_CORE ---help--- This is the driver for the hardware watchdog on the W83627HF chipset as used in Advantech PC-9578 and Tyan S2721-533 motherboards @@ -1125,6 +1145,13 @@ config LANTIQ_WDT help Hardware driver for the Lantiq SoC Watchdog Timer. +config RALINK_WDT + tristate "Ralink SoC watchdog" + select WATCHDOG_CORE + depends on RALINK + help + Hardware driver for the Ralink SoC Watchdog Timer. + # PARISC Architecture # POWERPC Architecture diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 8c7b8bc..91bd95a 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -55,6 +55,8 @@ obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o +obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o +obj-$(CONFIG_SIRFSOC_WATCHDOG) += sirfsoc_wdt.o # AVR32 Architecture obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o @@ -134,6 +136,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o +obj-$(CONFIG_RALINK_WDT) += rt2880_wdt.o # PARISC Architecture diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index 24a5177..5cf1621 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -60,8 +60,7 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/fs.h> /* For file operations */ #include <linux/ioport.h> /* For io-port access */ @@ -337,4 +336,3 @@ module_exit(acq_exit); MODULE_AUTHOR("David Woodhouse"); MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index cc6702f..a8961ad 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -345,4 +345,3 @@ module_exit(advwdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>"); MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c index 41b8493..fbb7b94 100644 --- a/drivers/watchdog/alim1535_wdt.c +++ b/drivers/watchdog/alim1535_wdt.c @@ -452,4 +452,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("ALi M1535 PMU Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c index 5eee550..12f0b76 100644 --- a/drivers/watchdog/alim7101_wdt.c +++ b/drivers/watchdog/alim7101_wdt.c @@ -425,4 +425,3 @@ MODULE_DEVICE_TABLE(pci, alim7101_pci_tbl); MODULE_AUTHOR("Steve Hill"); MODULE_DESCRIPTION("ALi M7101 PMU Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c index b3709f9..3a99657 100644 --- a/drivers/watchdog/ar7_wdt.c +++ b/drivers/watchdog/ar7_wdt.c @@ -46,7 +46,6 @@ MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>"); MODULE_DESCRIPTION(LONGNAME); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int margin = 60; module_param(margin, int, 0); diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c index b178e71..afe7d17 100644 --- a/drivers/watchdog/at32ap700x_wdt.c +++ b/drivers/watchdog/at32ap700x_wdt.c @@ -434,4 +434,3 @@ module_platform_driver_probe(at32_wdt_driver, at32_wdt_probe); MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>"); MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c index 1c75260..dee6cc2 100644 --- a/drivers/watchdog/at91rm9200_wdt.c +++ b/drivers/watchdog/at91rm9200_wdt.c @@ -269,7 +269,7 @@ static struct platform_driver at91wdt_driver = { .driver = { .name = "at91_wdt", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(at91_wdt_dt_ids), + .of_match_table = at91_wdt_dt_ids, }, }; @@ -297,5 +297,4 @@ module_exit(at91_wdt_exit); MODULE_AUTHOR("Andrew Victor"); MODULE_DESCRIPTION("Watchdog driver for Atmel AT91RM9200"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:at91_wdt"); diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c index 37cb09b..9fa1f69 100644 --- a/drivers/watchdog/ath79_wdt.c +++ b/drivers/watchdog/ath79_wdt.c @@ -329,4 +329,3 @@ MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org"); MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:" DRIVER_NAME); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c index 61566fc..a6a2ceb 100644 --- a/drivers/watchdog/bcm2835_wdt.c +++ b/drivers/watchdog/bcm2835_wdt.c @@ -186,4 +186,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>"); MODULE_DESCRIPTION("Driver for Broadcom BCM2835 watchdog timer"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c index a14a58d..4eb188b 100644 --- a/drivers/watchdog/bcm63xx_wdt.c +++ b/drivers/watchdog/bcm63xx_wdt.c @@ -317,5 +317,4 @@ MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>"); MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:bcm63xx-wdt"); diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c index 5d36d6f..a3b6a5b 100644 --- a/drivers/watchdog/bfin_wdt.c +++ b/drivers/watchdog/bfin_wdt.c @@ -465,7 +465,6 @@ module_exit(bfin_wdt_exit); MODULE_AUTHOR("Michele d'Amico, Mike Frysinger <vapier@gentoo.org>"); MODULE_DESCRIPTION("Blackfin Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(timeout, uint, 0); MODULE_PARM_DESC(timeout, diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c index f270bb7..f7ae49e 100644 --- a/drivers/watchdog/cpu5wdt.c +++ b/drivers/watchdog/cpu5wdt.c @@ -289,7 +289,6 @@ MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>"); MODULE_DESCRIPTION("sma cpu5 watchdog driver"); MODULE_SUPPORTED_DEVICE("sma cpu5 watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(port, int, 0); MODULE_PARM_DESC(port, "base address of watchdog card, default is 0x91"); diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index bead774..dd625cc 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -267,5 +267,4 @@ MODULE_PARM_DESC(heartbeat, __MODULE_STRING(DEFAULT_HEARTBEAT)); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:watchdog"); diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c index e621098..a46f5c7 100644 --- a/drivers/watchdog/dw_wdt.c +++ b/drivers/watchdog/dw_wdt.c @@ -29,6 +29,7 @@ #include <linux/miscdevice.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/of.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/spinlock.h> @@ -203,12 +204,12 @@ static long dw_wdt_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) switch (cmd) { case WDIOC_GETSUPPORT: - return copy_to_user((struct watchdog_info *)arg, &dw_wdt_ident, + return copy_to_user((void __user *)arg, &dw_wdt_ident, sizeof(dw_wdt_ident)) ? -EFAULT : 0; case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: - return put_user(0, (int *)arg); + return put_user(0, (int __user *)arg); case WDIOC_KEEPALIVE: dw_wdt_set_next_heartbeat(); @@ -252,17 +253,17 @@ static int dw_wdt_release(struct inode *inode, struct file *filp) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int dw_wdt_suspend(struct device *dev) { - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return 0; } static int dw_wdt_resume(struct device *dev) { - int err = clk_enable(dw_wdt.clk); + int err = clk_prepare_enable(dw_wdt.clk); if (err) return err; @@ -271,12 +272,9 @@ static int dw_wdt_resume(struct device *dev) return 0; } +#endif /* CONFIG_PM_SLEEP */ -static const struct dev_pm_ops dw_wdt_pm_ops = { - .suspend = dw_wdt_suspend, - .resume = dw_wdt_resume, -}; -#endif /* CONFIG_PM */ +static SIMPLE_DEV_PM_OPS(dw_wdt_pm_ops, dw_wdt_suspend, dw_wdt_resume); static const struct file_operations wdt_fops = { .owner = THIS_MODULE, @@ -309,7 +307,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev) if (IS_ERR(dw_wdt.clk)) return PTR_ERR(dw_wdt.clk); - ret = clk_enable(dw_wdt.clk); + ret = clk_prepare_enable(dw_wdt.clk); if (ret) return ret; @@ -326,7 +324,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev) return 0; out_disable_clk: - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return ret; } @@ -335,20 +333,27 @@ static int dw_wdt_drv_remove(struct platform_device *pdev) { misc_deregister(&dw_wdt_miscdev); - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id dw_wdt_of_match[] = { + { .compatible = "snps,dw-wdt", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, dw_wdt_of_match); +#endif + static struct platform_driver dw_wdt_driver = { .probe = dw_wdt_drv_probe, .remove = dw_wdt_drv_remove, .driver = { .name = "dw_wdt", .owner = THIS_MODULE, -#ifdef CONFIG_PM + .of_match_table = of_match_ptr(dw_wdt_of_match), .pm = &dw_wdt_pm_ops, -#endif /* CONFIG_PM */ }, }; @@ -357,4 +362,3 @@ module_platform_driver(dw_wdt_driver); MODULE_AUTHOR("Jamie Iles"); MODULE_DESCRIPTION("Synopsys DesignWare Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c index e057484..833e813 100644 --- a/drivers/watchdog/ep93xx_wdt.c +++ b/drivers/watchdog/ep93xx_wdt.c @@ -179,4 +179,3 @@ MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>," MODULE_DESCRIPTION("EP93xx Watchdog"); MODULE_LICENSE("GPL"); MODULE_VERSION(WDT_VERSION); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c index cd31b8a..23ee532 100644 --- a/drivers/watchdog/eurotechwdt.c +++ b/drivers/watchdog/eurotechwdt.c @@ -477,4 +477,3 @@ module_exit(eurwdt_exit); MODULE_AUTHOR("Rodolfo Giometti"); MODULE_DESCRIPTION("Driver for Eurotech CPU-1220/1410 on board watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c index 3755833..25beb30 100644 --- a/drivers/watchdog/gef_wdt.c +++ b/drivers/watchdog/gef_wdt.c @@ -331,5 +331,4 @@ module_exit(gef_wdt_exit); MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>"); MODULE_DESCRIPTION("GE watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:gef_wdt"); diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c index fcd599d..4a6ae84 100644 --- a/drivers/watchdog/geodewdt.c +++ b/drivers/watchdog/geodewdt.c @@ -297,4 +297,3 @@ module_exit(geodewdt_exit); MODULE_AUTHOR("Advanced Micro Devices, Inc"); MODULE_DESCRIPTION("Geode GX/LX Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 19f3c3f..45b979d 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -881,7 +881,6 @@ MODULE_AUTHOR("Tom Mingarelli"); MODULE_DESCRIPTION("hp watchdog driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(HPWDT_VERSION); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c index 2b2ea13..a72fe93 100644 --- a/drivers/watchdog/i6300esb.c +++ b/drivers/watchdog/i6300esb.c @@ -497,4 +497,3 @@ module_pci_driver(esb_driver); MODULE_AUTHOR("Ross Biro and David Härdeman"); MODULE_DESCRIPTION("Watchdog driver for Intel 6300ESB chipsets"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c index 6130321..04f8af6 100644 --- a/drivers/watchdog/iTCO_wdt.c +++ b/drivers/watchdog/iTCO_wdt.c @@ -56,8 +56,6 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/fs.h> /* For file operations */ @@ -394,7 +392,7 @@ static int iTCO_wdt_probe(struct platform_device *dev) { int ret = -ENODEV; unsigned long val32; - struct lpc_ich_info *ich_info = dev->dev.platform_data; + struct lpc_ich_info *ich_info = dev_get_platdata(&dev->dev); if (!ich_info) goto out; @@ -582,5 +580,4 @@ MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRV_NAME); diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c index eb6b5cc..7ae3669 100644 --- a/drivers/watchdog/ib700wdt.c +++ b/drivers/watchdog/ib700wdt.c @@ -382,6 +382,5 @@ module_exit(ibwdt_exit); MODULE_AUTHOR("Charles Howes <chowes@vsol.net>"); MODULE_DESCRIPTION("IB700 SBC watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of ib700wdt.c */ diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c index bc3fb8f..db0a3446 100644 --- a/drivers/watchdog/ibmasr.c +++ b/drivers/watchdog/ibmasr.c @@ -419,4 +419,3 @@ MODULE_PARM_DESC(nowayout, MODULE_DESCRIPTION("IBM Automatic Server Restart driver"); MODULE_AUTHOR("Andrey Panin"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c index e24ef6a..70a2402 100644 --- a/drivers/watchdog/ie6xx_wdt.c +++ b/drivers/watchdog/ie6xx_wdt.c @@ -344,5 +344,4 @@ module_exit(ie6xx_wdt_exit); MODULE_AUTHOR("Alexander Stein <alexander.stein@systec-electronic.com>"); MODULE_DESCRIPTION("Intel Atom E6xx Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index 693ac3f..b4786bc 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -322,6 +322,7 @@ static const struct of_device_id imx2_wdt_dt_ids[] = { { .compatible = "fsl,imx21-wdt", }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, imx2_wdt_dt_ids); static struct platform_driver imx2_wdt_driver = { .remove = __exit_p(imx2_wdt_remove), @@ -338,5 +339,4 @@ module_platform_driver_probe(imx2_wdt_driver, imx2_wdt_probe); MODULE_AUTHOR("Wolfram Sang"); MODULE_DESCRIPTION("Watchdog driver for IMX2 and later"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c index 6d90f7a..1b5c25a 100644 --- a/drivers/watchdog/indydog.c +++ b/drivers/watchdog/indydog.c @@ -214,4 +214,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); MODULE_DESCRIPTION("Hardware Watchdog Device for SGI IP22"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c index 8ced256..e13e65e 100644 --- a/drivers/watchdog/intel_scu_watchdog.c +++ b/drivers/watchdog/intel_scu_watchdog.c @@ -564,5 +564,4 @@ module_exit(intel_scu_watchdog_exit); MODULE_AUTHOR("Intel Corporation"); MODULE_DESCRIPTION("Intel SCU Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_VERSION(WDT_VER); diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c index d964faf..b16013f 100644 --- a/drivers/watchdog/iop_wdt.c +++ b/drivers/watchdog/iop_wdt.c @@ -259,4 +259,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>"); MODULE_DESCRIPTION("iop watchdog timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c index f4cce6d..41b3979 100644 --- a/drivers/watchdog/it8712f_wdt.c +++ b/drivers/watchdog/it8712f_wdt.c @@ -41,7 +41,6 @@ MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>"); MODULE_DESCRIPTION("IT8712F Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int max_units = 255; static int margin = 60; /* in seconds */ diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c index d3dcc69..e2bba68 100644 --- a/drivers/watchdog/it87_wdt.c +++ b/drivers/watchdog/it87_wdt.c @@ -772,4 +772,3 @@ module_exit(it87_wdt_exit); MODULE_AUTHOR("Oliver Schuster"); MODULE_DESCRIPTION("Hardware Watchdog Device Driver for IT87xx EC-LPC I/O"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c index 5580b4f..f20cc53 100644 --- a/drivers/watchdog/ixp4xx_wdt.c +++ b/drivers/watchdog/ixp4xx_wdt.c @@ -208,5 +208,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c index d1afdf6..2de486a 100644 --- a/drivers/watchdog/jz4740_wdt.c +++ b/drivers/watchdog/jz4740_wdt.c @@ -222,5 +222,4 @@ module_platform_driver(jz4740_wdt_driver); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); MODULE_DESCRIPTION("jz4740 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:jz4740-wdt"); diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c index 5c3d4df..a1a3638 100644 --- a/drivers/watchdog/kempld_wdt.c +++ b/drivers/watchdog/kempld_wdt.c @@ -67,7 +67,7 @@ enum { PRESCALER_12, }; -const u32 kempld_prescaler[] = { +static const u32 kempld_prescaler[] = { [PRESCALER_21] = (1 << 21) - 1, [PRESCALER_17] = (1 << 17) - 1, [PRESCALER_12] = (1 << 12) - 1, @@ -361,7 +361,7 @@ static long kempld_wdt_ioctl(struct watchdog_device *wdd, unsigned int cmd, ret = kempld_wdt_keepalive(wdd); break; case WDIOC_GETPRETIMEOUT: - ret = put_user(wdt_data->pretimeout, (int *)arg); + ret = put_user(wdt_data->pretimeout, (int __user *)arg); break; } @@ -578,4 +578,3 @@ module_platform_driver(kempld_wdt_driver); MODULE_DESCRIPTION("KEM PLD Watchdog Driver"); MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c index dce9ecf..40ca559 100644 --- a/drivers/watchdog/ks8695_wdt.c +++ b/drivers/watchdog/ks8695_wdt.c @@ -323,5 +323,4 @@ module_exit(ks8695_wdt_exit); MODULE_AUTHOR("Andrew Victor"); MODULE_DESCRIPTION("Watchdog driver for KS8695"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:ks8695_wdt"); diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c index 088fd0c..3b3148c 100644 --- a/drivers/watchdog/lantiq_wdt.c +++ b/drivers/watchdog/lantiq_wdt.c @@ -249,4 +249,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); MODULE_DESCRIPTION("Lantiq SoC Watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c index 173494a..da6fa2b 100644 --- a/drivers/watchdog/m54xx_wdt.c +++ b/drivers/watchdog/m54xx_wdt.c @@ -223,4 +223,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c index bf84f78..9826b59 100644 --- a/drivers/watchdog/machzwd.c +++ b/drivers/watchdog/machzwd.c @@ -92,7 +92,6 @@ static unsigned short zf_readw(unsigned char port) MODULE_AUTHOR("Fernando Fuganti <fuganti@conectiva.com.br>"); MODULE_DESCRIPTION("MachZ ZF-Logic Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static bool nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, bool, 0); diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c index cc9d328..6d4f399 100644 --- a/drivers/watchdog/max63xx_wdt.c +++ b/drivers/watchdog/max63xx_wdt.c @@ -258,4 +258,3 @@ MODULE_PARM_DESC(nodelay, "(max6373/74 only, default=0)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c index 97d62ee..be86ea3 100644 --- a/drivers/watchdog/mixcomwd.c +++ b/drivers/watchdog/mixcomwd.c @@ -315,4 +315,3 @@ MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>"); MODULE_DESCRIPTION("MixCom Watchdog driver"); MODULE_VERSION(VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/moxart_wdt.c b/drivers/watchdog/moxart_wdt.c new file mode 100644 index 0000000..4166e4d --- /dev/null +++ b/drivers/watchdog/moxart_wdt.c @@ -0,0 +1,165 @@ +/* + * MOXA ART SoCs watchdog driver. + * + * Copyright (C) 2013 Jonas Jensen + * + * Jonas Jensen <jonas.jensen@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/watchdog.h> +#include <linux/moduleparam.h> + +#define REG_COUNT 0x4 +#define REG_MODE 0x8 +#define REG_ENABLE 0xC + +struct moxart_wdt_dev { + struct watchdog_device dev; + void __iomem *base; + unsigned int clock_frequency; +}; + +static int heartbeat; + +static int moxart_wdt_stop(struct watchdog_device *wdt_dev) +{ + struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev); + + writel(0, moxart_wdt->base + REG_ENABLE); + + return 0; +} + +static int moxart_wdt_start(struct watchdog_device *wdt_dev) +{ + struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev); + + writel(moxart_wdt->clock_frequency * wdt_dev->timeout, + moxart_wdt->base + REG_COUNT); + writel(0x5ab9, moxart_wdt->base + REG_MODE); + writel(0x03, moxart_wdt->base + REG_ENABLE); + + return 0; +} + +static int moxart_wdt_set_timeout(struct watchdog_device *wdt_dev, + unsigned int timeout) +{ + wdt_dev->timeout = timeout; + + return 0; +} + +static const struct watchdog_info moxart_wdt_info = { + .identity = "moxart-wdt", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static const struct watchdog_ops moxart_wdt_ops = { + .owner = THIS_MODULE, + .start = moxart_wdt_start, + .stop = moxart_wdt_stop, + .set_timeout = moxart_wdt_set_timeout, +}; + +static int moxart_wdt_probe(struct platform_device *pdev) +{ + struct moxart_wdt_dev *moxart_wdt; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct resource *res; + struct clk *clk; + int err; + unsigned int max_timeout; + bool nowayout = WATCHDOG_NOWAYOUT; + + moxart_wdt = devm_kzalloc(dev, sizeof(*moxart_wdt), GFP_KERNEL); + if (!moxart_wdt) + return -ENOMEM; + + platform_set_drvdata(pdev, moxart_wdt); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + moxart_wdt->base = devm_ioremap_resource(dev, res); + if (IS_ERR(moxart_wdt->base)) + return PTR_ERR(moxart_wdt->base); + + clk = of_clk_get(node, 0); + if (IS_ERR(clk)) { + pr_err("%s: of_clk_get failed\n", __func__); + return PTR_ERR(clk); + } + + moxart_wdt->clock_frequency = clk_get_rate(clk); + if (moxart_wdt->clock_frequency == 0) { + pr_err("%s: incorrect clock frequency\n", __func__); + return -EINVAL; + } + + max_timeout = UINT_MAX / moxart_wdt->clock_frequency; + + moxart_wdt->dev.info = &moxart_wdt_info; + moxart_wdt->dev.ops = &moxart_wdt_ops; + moxart_wdt->dev.timeout = max_timeout; + moxart_wdt->dev.min_timeout = 1; + moxart_wdt->dev.max_timeout = max_timeout; + moxart_wdt->dev.parent = dev; + + watchdog_init_timeout(&moxart_wdt->dev, heartbeat, dev); + watchdog_set_nowayout(&moxart_wdt->dev, nowayout); + + watchdog_set_drvdata(&moxart_wdt->dev, moxart_wdt); + + err = watchdog_register_device(&moxart_wdt->dev); + if (err) + return err; + + dev_dbg(dev, "Watchdog enabled (heartbeat=%d sec, nowayout=%d)\n", + moxart_wdt->dev.timeout, nowayout); + + return 0; +} + +static int moxart_wdt_remove(struct platform_device *pdev) +{ + struct moxart_wdt_dev *moxart_wdt = platform_get_drvdata(pdev); + + moxart_wdt_stop(&moxart_wdt->dev); + watchdog_unregister_device(&moxart_wdt->dev); + + return 0; +} + +static const struct of_device_id moxart_watchdog_match[] = { + { .compatible = "moxa,moxart-watchdog" }, + { }, +}; + +static struct platform_driver moxart_wdt_driver = { + .probe = moxart_wdt_probe, + .remove = moxart_wdt_remove, + .driver = { + .name = "moxart-watchdog", + .owner = THIS_MODULE, + .of_match_table = moxart_watchdog_match, + }, +}; +module_platform_driver(moxart_wdt_driver); + +module_param(heartbeat, int, 0); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds"); + +MODULE_DESCRIPTION("MOXART watchdog driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jonas Jensen <jonas.jensen@gmail.com>"); diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index d0ebeba..d821520 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -330,4 +330,3 @@ MODULE_AUTHOR("Dave Updegraff, Kumar Gala"); MODULE_DESCRIPTION("Driver for watchdog timer in MPC8xx/MPC83xx/MPC86xx " "uProcessors"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c index b434111..edb31ff 100644 --- a/drivers/watchdog/mtx-1_wdt.c +++ b/drivers/watchdog/mtx-1_wdt.c @@ -257,5 +257,4 @@ module_platform_driver(mtx1_wdt_driver); MODULE_AUTHOR("Michael Stickel, Florian Fainelli"); MODULE_DESCRIPTION("Driver for the MTX-1 watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:mtx1-wdt"); diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c index e4cf980..f9fa584 100644 --- a/drivers/watchdog/mv64x60_wdt.c +++ b/drivers/watchdog/mv64x60_wdt.c @@ -255,7 +255,7 @@ static struct miscdevice mv64x60_wdt_miscdev = { static int mv64x60_wdt_probe(struct platform_device *dev) { - struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data; + struct mv64x60_wdt_pdata *pdata = dev_get_platdata(&dev->dev); struct resource *r; int timeout = 10; @@ -323,5 +323,4 @@ module_exit(mv64x60_wdt_exit); MODULE_AUTHOR("James Chapman <jchapman@katalix.com>"); MODULE_DESCRIPTION("MV64x60 watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" MV64x60_WDT_NAME); diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c index b15b6ef..a0d893b 100644 --- a/drivers/watchdog/nuc900_wdt.c +++ b/drivers/watchdog/nuc900_wdt.c @@ -307,5 +307,4 @@ module_platform_driver(nuc900wdt_driver); MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); MODULE_DESCRIPTION("Watchdog driver for NUC900"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:nuc900-wdt"); diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c index 59cf19e..231e5b9 100644 --- a/drivers/watchdog/nv_tco.c +++ b/drivers/watchdog/nv_tco.c @@ -513,4 +513,3 @@ module_exit(nv_tco_cleanup_module); MODULE_AUTHOR("Mike Waychison"); MODULE_DESCRIPTION("TCO timer driver for NV chipsets"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c index 4dd281f..fb57103 100644 --- a/drivers/watchdog/of_xilinx_wdt.c +++ b/drivers/watchdog/of_xilinx_wdt.c @@ -405,4 +405,3 @@ module_platform_driver(xwdt_driver); MODULE_AUTHOR("Alejandro Cabrera <aldaya@gmail.com>"); MODULE_DESCRIPTION("Xilinx Watchdog driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index af88ffd..09cf013 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -68,14 +68,14 @@ static void omap_wdt_reload(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* wait for posted write to complete */ - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08) + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08) cpu_relax(); wdev->wdt_trgr_pattern = ~wdev->wdt_trgr_pattern; - __raw_writel(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR)); + writel_relaxed(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR)); /* wait for posted write to complete */ - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08) + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08) cpu_relax(); /* reloaded WCRR from WLDR */ } @@ -85,12 +85,12 @@ static void omap_wdt_enable(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* Sequence to enable the watchdog */ - __raw_writel(0xBBBB, base + OMAP_WATCHDOG_SPR); - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10) + writel_relaxed(0xBBBB, base + OMAP_WATCHDOG_SPR); + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10) cpu_relax(); - __raw_writel(0x4444, base + OMAP_WATCHDOG_SPR); - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10) + writel_relaxed(0x4444, base + OMAP_WATCHDOG_SPR); + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10) cpu_relax(); } @@ -99,12 +99,12 @@ static void omap_wdt_disable(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* sequence required to disable watchdog */ - __raw_writel(0xAAAA, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10) + writel_relaxed(0xAAAA, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10) cpu_relax(); - __raw_writel(0x5555, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10) + writel_relaxed(0x5555, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10) cpu_relax(); } @@ -115,11 +115,11 @@ static void omap_wdt_set_timer(struct omap_wdt_dev *wdev, void __iomem *base = wdev->base; /* just count up at 32 KHz */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04) + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04) cpu_relax(); - __raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR); - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04) + writel_relaxed(pre_margin, base + OMAP_WATCHDOG_LDR); + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04) cpu_relax(); } @@ -135,11 +135,11 @@ static int omap_wdt_start(struct watchdog_device *wdog) pm_runtime_get_sync(wdev->dev); /* initialize prescaler */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01) cpu_relax(); - __raw_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL); - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) + writel_relaxed((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL); + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01) cpu_relax(); omap_wdt_set_timer(wdev, wdog->timeout); @@ -205,7 +205,7 @@ static const struct watchdog_ops omap_wdt_ops = { static int omap_wdt_probe(struct platform_device *pdev) { - struct omap_wd_timer_platform_data *pdata = pdev->dev.platform_data; + struct omap_wd_timer_platform_data *pdata = dev_get_platdata(&pdev->dev); struct watchdog_device *omap_wdt; struct resource *res, *mem; struct omap_wdt_dev *wdev; @@ -275,7 +275,7 @@ static int omap_wdt_probe(struct platform_device *pdev) } pr_info("OMAP Watchdog Timer Rev 0x%02x: initial timeout %d sec\n", - __raw_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF, + readl_relaxed(wdev->base + OMAP_WATCHDOG_REV) & 0xFF, omap_wdt->timeout); pm_runtime_put_sync(wdev->dev); diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 4ea5fcc..44edca6 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -207,7 +207,7 @@ static struct platform_driver orion_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = "orion_wdt", - .of_match_table = of_match_ptr(orion_wdt_of_match_table), + .of_match_table = orion_wdt_of_match_table, }, }; @@ -225,4 +225,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:orion_wdt"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index 5afb89b..5211d56 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -580,8 +580,6 @@ MODULE_AUTHOR("Sven Anders <anders@anduras.de>, " MODULE_DESCRIPTION("PC87413 WDT driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - module_param(io, int, 0); MODULE_PARM_DESC(io, MODNAME " I/O port (default: " __MODULE_STRING(IO_DEFAULT) ")."); diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index 33e49a7..e936f15 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -61,7 +61,7 @@ #include <linux/delay.h> /* For mdelay function */ #include <linux/timer.h> /* For timer related operations */ #include <linux/jiffies.h> /* For jiffies stuff */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/reboot.h> /* For kernel_power_off() */ #include <linux/init.h> /* For __init/__exit/... */ @@ -1011,5 +1011,3 @@ MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, " MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver"); MODULE_VERSION(WATCHDOG_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c index 7890f84..b4864f2 100644 --- a/drivers/watchdog/pcwd_pci.c +++ b/drivers/watchdog/pcwd_pci.c @@ -40,7 +40,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/delay.h> /* For mdelay function */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/notifier.h> /* For notifier support */ #include <linux/reboot.h> /* For reboot_notifier stuff */ @@ -820,5 +820,3 @@ module_pci_driver(pcipcwd_driver); MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("Berkshire PCI-PC Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index 7b14d18..b731b5d 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -32,7 +32,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/delay.h> /* For mdelay function */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/notifier.h> /* For notifier support */ #include <linux/reboot.h> /* For reboot_notifier stuff */ @@ -72,8 +72,6 @@ do { \ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE(DRIVER_LICENSE); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); /* Module Parameters */ module_param(debug, int, 0); @@ -235,13 +233,17 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned char cmd, unsigned char *msb, unsigned char *lsb) { int got_response, count; - unsigned char buf[6]; + unsigned char *buf; /* We will not send any commands if the USB PCWD device does * not exist */ if ((!usb_pcwd) || (!usb_pcwd->exists)) return -1; + buf = kmalloc(6, GFP_KERNEL); + if (buf == NULL) + return 0; + /* The USB PC Watchdog uses a 6 byte report format. * The board currently uses only 3 of the six bytes of the report. */ buf[0] = cmd; /* Byte 0 = CMD */ @@ -256,8 +258,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, if (usb_control_msg(usb_pcwd->udev, usb_sndctrlpipe(usb_pcwd->udev, 0), HID_REQ_SET_REPORT, HID_DT_REPORT, - 0x0200, usb_pcwd->interface_number, buf, sizeof(buf), - USB_COMMAND_TIMEOUT) != sizeof(buf)) { + 0x0200, usb_pcwd->interface_number, buf, 6, + USB_COMMAND_TIMEOUT) != 6) { dbg("usb_pcwd_send_command: error in usb_control_msg for " "cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb); } @@ -277,6 +279,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, *lsb = usb_pcwd->cmd_data_lsb; } + kfree(buf); + return got_response; } diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c index 329bc60..0cdfee2 100644 --- a/drivers/watchdog/pika_wdt.c +++ b/drivers/watchdog/pika_wdt.c @@ -299,5 +299,3 @@ module_exit(pikawdt_exit); MODULE_AUTHOR("Sean MacLennan <smaclennan@pikatech.com>"); MODULE_DESCRIPTION("PIKA FPGA based Watchdog Timer"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index b30bd43..1bdcc31 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -233,5 +233,4 @@ MODULE_PARM_DESC(nowayout, "Set to 1 to keep watchdog running after device release"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:pnx4008-watchdog"); diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c index 1b62a7d..882fdcb 100644 --- a/drivers/watchdog/pnx833x_wdt.c +++ b/drivers/watchdog/pnx833x_wdt.c @@ -278,4 +278,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Daniel Laird/Andre McCurdy"); MODULE_DESCRIPTION("Hardware Watchdog Device for PNX833x"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c index 9cf6bc7..71e78ef 100644 --- a/drivers/watchdog/rc32434_wdt.c +++ b/drivers/watchdog/rc32434_wdt.c @@ -25,8 +25,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/fs.h> /* For file operations */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/platform_device.h> /* For platform_driver framework */ @@ -329,4 +328,3 @@ MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>," "Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("Driver for the IDT RC32434 SoC watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c index b0f116c..082d062 100644 --- a/drivers/watchdog/rdc321x_wdt.c +++ b/drivers/watchdog/rdc321x_wdt.c @@ -231,7 +231,7 @@ static int rdc321x_wdt_probe(struct platform_device *pdev) struct resource *r; struct rdc321x_wdt_pdata *pdata; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "no platform data supplied\n"); return -ENODEV; @@ -298,4 +298,3 @@ module_platform_driver(rdc321x_wdt_driver); MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("RDC321x watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c new file mode 100644 index 0000000..53d37fe --- /dev/null +++ b/drivers/watchdog/rt2880_wdt.c @@ -0,0 +1,207 @@ +/* + * Ralink RT288x/RT3xxx/MT76xx built-in hardware watchdog timer + * + * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2013 John Crispin <blogic@openwrt.org> + * + * This driver was based on: drivers/watchdog/softdog.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/reset.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/watchdog.h> +#include <linux/miscdevice.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> + +#include <asm/mach-ralink/ralink_regs.h> + +#define SYSC_RSTSTAT 0x38 +#define WDT_RST_CAUSE BIT(1) + +#define RALINK_WDT_TIMEOUT 30 +#define RALINK_WDT_PRESCALE 65536 + +#define TIMER_REG_TMR1LOAD 0x00 +#define TIMER_REG_TMR1CTL 0x08 + +#define TMRSTAT_TMR1RST BIT(5) + +#define TMR1CTL_ENABLE BIT(7) +#define TMR1CTL_MODE_SHIFT 4 +#define TMR1CTL_MODE_MASK 0x3 +#define TMR1CTL_MODE_FREE_RUNNING 0x0 +#define TMR1CTL_MODE_PERIODIC 0x1 +#define TMR1CTL_MODE_TIMEOUT 0x2 +#define TMR1CTL_MODE_WDT 0x3 +#define TMR1CTL_PRESCALE_MASK 0xf +#define TMR1CTL_PRESCALE_65536 0xf + +static struct clk *rt288x_wdt_clk; +static unsigned long rt288x_wdt_freq; +static void __iomem *rt288x_wdt_base; + +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +static inline void rt_wdt_w32(unsigned reg, u32 val) +{ + iowrite32(val, rt288x_wdt_base + reg); +} + +static inline u32 rt_wdt_r32(unsigned reg) +{ + return ioread32(rt288x_wdt_base + reg); +} + +static int rt288x_wdt_ping(struct watchdog_device *w) +{ + rt_wdt_w32(TIMER_REG_TMR1LOAD, w->timeout * rt288x_wdt_freq); + + return 0; +} + +static int rt288x_wdt_start(struct watchdog_device *w) +{ + u32 t; + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t &= ~(TMR1CTL_MODE_MASK << TMR1CTL_MODE_SHIFT | + TMR1CTL_PRESCALE_MASK); + t |= (TMR1CTL_MODE_WDT << TMR1CTL_MODE_SHIFT | + TMR1CTL_PRESCALE_65536); + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + rt288x_wdt_ping(w); + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t |= TMR1CTL_ENABLE; + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + return 0; +} + +static int rt288x_wdt_stop(struct watchdog_device *w) +{ + u32 t; + + rt288x_wdt_ping(w); + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t &= ~TMR1CTL_ENABLE; + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + return 0; +} + +static int rt288x_wdt_set_timeout(struct watchdog_device *w, unsigned int t) +{ + w->timeout = t; + rt288x_wdt_ping(w); + + return 0; +} + +static int rt288x_wdt_bootcause(void) +{ + if (rt_sysc_r32(SYSC_RSTSTAT) & WDT_RST_CAUSE) + return WDIOF_CARDRESET; + + return 0; +} + +static struct watchdog_info rt288x_wdt_info = { + .identity = "Ralink Watchdog", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, +}; + +static struct watchdog_ops rt288x_wdt_ops = { + .owner = THIS_MODULE, + .start = rt288x_wdt_start, + .stop = rt288x_wdt_stop, + .ping = rt288x_wdt_ping, + .set_timeout = rt288x_wdt_set_timeout, +}; + +static struct watchdog_device rt288x_wdt_dev = { + .info = &rt288x_wdt_info, + .ops = &rt288x_wdt_ops, + .min_timeout = 1, +}; + +static int rt288x_wdt_probe(struct platform_device *pdev) +{ + struct resource *res; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + rt288x_wdt_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(rt288x_wdt_base)) + return PTR_ERR(rt288x_wdt_base); + + rt288x_wdt_clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(rt288x_wdt_clk)) + return PTR_ERR(rt288x_wdt_clk); + + device_reset(&pdev->dev); + + rt288x_wdt_freq = clk_get_rate(rt288x_wdt_clk) / RALINK_WDT_PRESCALE; + + rt288x_wdt_dev.dev = &pdev->dev; + rt288x_wdt_dev.bootstatus = rt288x_wdt_bootcause(); + + rt288x_wdt_dev.max_timeout = (0xfffful / rt288x_wdt_freq); + rt288x_wdt_dev.timeout = rt288x_wdt_dev.max_timeout; + + watchdog_set_nowayout(&rt288x_wdt_dev, nowayout); + + ret = watchdog_register_device(&rt288x_wdt_dev); + if (!ret) + dev_info(&pdev->dev, "Initialized\n"); + + return 0; +} + +static int rt288x_wdt_remove(struct platform_device *pdev) +{ + watchdog_unregister_device(&rt288x_wdt_dev); + + return 0; +} + +static void rt288x_wdt_shutdown(struct platform_device *pdev) +{ + rt288x_wdt_stop(&rt288x_wdt_dev); +} + +static const struct of_device_id rt288x_wdt_match[] = { + { .compatible = "ralink,rt2880-wdt" }, + {}, +}; +MODULE_DEVICE_TABLE(of, rt288x_wdt_match); + +static struct platform_driver rt288x_wdt_driver = { + .probe = rt288x_wdt_probe, + .remove = rt288x_wdt_remove, + .shutdown = rt288x_wdt_shutdown, + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .of_match_table = rt288x_wdt_match, + }, +}; + +module_platform_driver(rt288x_wdt_driver); + +MODULE_DESCRIPTION("MediaTek/Ralink RT288x/RT3xxx hardware watchdog driver"); +MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 23aad7c..7d8fd04 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -29,7 +29,6 @@ #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/timer.h> -#include <linux/miscdevice.h> /* for MODULE_ALIAS_MISCDEV */ #include <linux/watchdog.h> #include <linux/init.h> #include <linux/platform_device.h> @@ -539,5 +538,4 @@ MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>, " "Dimitry Andric <dimitry.andric@tomtom.com>"); MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:s3c2410-wdt"); diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index ccd6b29..e1d39a1 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c @@ -193,4 +193,3 @@ module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c index ea5d84a..3abae50 100644 --- a/drivers/watchdog/sb_wdog.c +++ b/drivers/watchdog/sb_wdog.c @@ -341,7 +341,6 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* * example code that can be put in a platform code area to utilize the diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c index 63632ec..2eef58a 100644 --- a/drivers/watchdog/sbc60xxwdt.c +++ b/drivers/watchdog/sbc60xxwdt.c @@ -387,4 +387,3 @@ module_exit(sbc60xxwdt_unload); MODULE_AUTHOR("Jakob Oestergaard <jakob@unthought.net>"); MODULE_DESCRIPTION("60xx Single Board Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c index 719edc8..5f268ad 100644 --- a/drivers/watchdog/sbc7240_wdt.c +++ b/drivers/watchdog/sbc7240_wdt.c @@ -309,5 +309,3 @@ MODULE_AUTHOR("Gilles Gigan"); MODULE_DESCRIPTION("Watchdog device driver for single board" " computers EPIC Nano 7240 from iEi"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c index d4781e0..da60560 100644 --- a/drivers/watchdog/sbc8360.c +++ b/drivers/watchdog/sbc8360.c @@ -404,6 +404,5 @@ MODULE_AUTHOR("Ian E. Morgan <imorgan@webcon.ca>"); MODULE_DESCRIPTION("SBC8360 watchdog driver"); MODULE_LICENSE("GPL"); MODULE_VERSION("1.01"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of sbc8360.c */ diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c index 0c3e9f6..a1c502e 100644 --- a/drivers/watchdog/sbc_epx_c3.c +++ b/drivers/watchdog/sbc_epx_c3.c @@ -220,4 +220,3 @@ MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC. " "so only use it if you are *sure* you are running on this specific " "SBC system from Winsystems! It writes to IO ports 0x1ee and 0x1ef!"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c index 90d5527..a517d8b 100644 --- a/drivers/watchdog/sbc_fitpc2_wdt.c +++ b/drivers/watchdog/sbc_fitpc2_wdt.c @@ -263,5 +263,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c index 3fb83b0..3b9fff9 100644 --- a/drivers/watchdog/sc1200wdt.c +++ b/drivers/watchdog/sc1200wdt.c @@ -476,4 +476,3 @@ MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>"); MODULE_DESCRIPTION( "Driver for National Semiconductor PC87307/PC97307 watchdog component"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c index 707e027..f353e18 100644 --- a/drivers/watchdog/sc520_wdt.c +++ b/drivers/watchdog/sc520_wdt.c @@ -433,4 +433,3 @@ MODULE_AUTHOR("Scott and Bill Jennings"); MODULE_DESCRIPTION( "Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c index af7b136..b96127e 100644 --- a/drivers/watchdog/sch311x_wdt.c +++ b/drivers/watchdog/sch311x_wdt.c @@ -26,8 +26,7 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/fs.h> /* For file operations */ @@ -545,5 +544,3 @@ module_exit(sch311x_wdt_exit); MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("SMSC SCH311x WatchDog Timer Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c index 8ae7c28..836377c 100644 --- a/drivers/watchdog/scx200_wdt.c +++ b/drivers/watchdog/scx200_wdt.c @@ -37,7 +37,6 @@ MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>"); MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int margin = 60; /* in seconds */ module_param(margin, int, 0); diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index 5bca794..f9b8e06 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -343,7 +343,6 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); MODULE_DESCRIPTION("SuperH watchdog driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(clock_division_ratio, int, 0); MODULE_PARM_DESC(clock_division_ratio, diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c new file mode 100644 index 0000000..ced3edc --- /dev/null +++ b/drivers/watchdog/sirfsoc_wdt.c @@ -0,0 +1,226 @@ +/* + * Watchdog driver for CSR SiRFprimaII and SiRFatlasVI + * + * Copyright (c) 2013 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/module.h> +#include <linux/watchdog.h> +#include <linux/platform_device.h> +#include <linux/moduleparam.h> +#include <linux/of.h> +#include <linux/io.h> +#include <linux/uaccess.h> + +#define CLOCK_FREQ 1000000 + +#define SIRFSOC_TIMER_COUNTER_LO 0x0000 +#define SIRFSOC_TIMER_MATCH_0 0x0008 +#define SIRFSOC_TIMER_INT_EN 0x0024 +#define SIRFSOC_TIMER_WATCHDOG_EN 0x0028 +#define SIRFSOC_TIMER_LATCH 0x0030 +#define SIRFSOC_TIMER_LATCHED_LO 0x0034 + +#define SIRFSOC_TIMER_WDT_INDEX 5 + +#define SIRFSOC_WDT_MIN_TIMEOUT 30 /* 30 secs */ +#define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */ +#define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */ + +static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; + +module_param(timeout, uint, 0); +module_param(nowayout, bool, 0); + +MODULE_PARM_DESC(timeout, "Default watchdog timeout (in seconds)"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +static unsigned int sirfsoc_wdt_gettimeleft(struct watchdog_device *wdd) +{ + u32 counter, match; + void __iomem *wdt_base; + int time_left; + + wdt_base = watchdog_get_drvdata(wdd); + counter = readl(wdt_base + SIRFSOC_TIMER_COUNTER_LO); + match = readl(wdt_base + + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); + + time_left = match - counter; + + return time_left / CLOCK_FREQ; +} + +static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd) +{ + u32 counter, timeout_ticks; + void __iomem *wdt_base; + + timeout_ticks = wdd->timeout * CLOCK_FREQ; + wdt_base = watchdog_get_drvdata(wdd); + + /* Enable the latch before reading the LATCH_LO register */ + writel(1, wdt_base + SIRFSOC_TIMER_LATCH); + + /* Set the TO value */ + counter = readl(wdt_base + SIRFSOC_TIMER_LATCHED_LO); + + counter += timeout_ticks; + + writel(counter, wdt_base + + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); + + return 0; +} + +static int sirfsoc_wdt_enable(struct watchdog_device *wdd) +{ + void __iomem *wdt_base = watchdog_get_drvdata(wdd); + sirfsoc_wdt_updatetimeout(wdd); + + /* + * NOTE: If interrupt is not enabled + * then WD-Reset doesn't get generated at all. + */ + writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) + | (1 << SIRFSOC_TIMER_WDT_INDEX), + wdt_base + SIRFSOC_TIMER_INT_EN); + writel(1, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); + + return 0; +} + +static int sirfsoc_wdt_disable(struct watchdog_device *wdd) +{ + void __iomem *wdt_base = watchdog_get_drvdata(wdd); + + writel(0, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); + writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) + & (~(1 << SIRFSOC_TIMER_WDT_INDEX)), + wdt_base + SIRFSOC_TIMER_INT_EN); + + return 0; +} + +static int sirfsoc_wdt_settimeout(struct watchdog_device *wdd, unsigned int to) +{ + wdd->timeout = to; + sirfsoc_wdt_updatetimeout(wdd); + + return 0; +} + +#define OPTIONS (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE) + +static const struct watchdog_info sirfsoc_wdt_ident = { + .options = OPTIONS, + .firmware_version = 0, + .identity = "SiRFSOC Watchdog", +}; + +static struct watchdog_ops sirfsoc_wdt_ops = { + .owner = THIS_MODULE, + .start = sirfsoc_wdt_enable, + .stop = sirfsoc_wdt_disable, + .get_timeleft = sirfsoc_wdt_gettimeleft, + .ping = sirfsoc_wdt_updatetimeout, + .set_timeout = sirfsoc_wdt_settimeout, +}; + +static struct watchdog_device sirfsoc_wdd = { + .info = &sirfsoc_wdt_ident, + .ops = &sirfsoc_wdt_ops, + .timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT, + .min_timeout = SIRFSOC_WDT_MIN_TIMEOUT, + .max_timeout = SIRFSOC_WDT_MAX_TIMEOUT, +}; + +static int sirfsoc_wdt_probe(struct platform_device *pdev) +{ + struct resource *res; + int ret; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + watchdog_set_drvdata(&sirfsoc_wdd, base); + + watchdog_init_timeout(&sirfsoc_wdd, timeout, &pdev->dev); + watchdog_set_nowayout(&sirfsoc_wdd, nowayout); + + ret = watchdog_register_device(&sirfsoc_wdd); + if (ret) + return ret; + + platform_set_drvdata(pdev, &sirfsoc_wdd); + + return 0; +} + +static void sirfsoc_wdt_shutdown(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + sirfsoc_wdt_disable(wdd); +} + +static int sirfsoc_wdt_remove(struct platform_device *pdev) +{ + sirfsoc_wdt_shutdown(pdev); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int sirfsoc_wdt_suspend(struct device *dev) +{ + return 0; +} + +static int sirfsoc_wdt_resume(struct device *dev) +{ + struct watchdog_device *wdd = dev_get_drvdata(dev); + + /* + * NOTE: Since timer controller registers settings are saved + * and restored back by the timer-prima2.c, so we need not + * update WD settings except refreshing timeout. + */ + sirfsoc_wdt_updatetimeout(wdd); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(sirfsoc_wdt_pm_ops, + sirfsoc_wdt_suspend, sirfsoc_wdt_resume); + +static const struct of_device_id sirfsoc_wdt_of_match[] = { + { .compatible = "sirf,prima2-tick"}, + {}, +}; +MODULE_DEVICE_TABLE(of, sirfsoc_wdt_of_match); + +static struct platform_driver sirfsoc_wdt_driver = { + .driver = { + .name = "sirfsoc-wdt", + .owner = THIS_MODULE, + .pm = &sirfsoc_wdt_pm_ops, + .of_match_table = of_match_ptr(sirfsoc_wdt_of_match), + }, + .probe = sirfsoc_wdt_probe, + .remove = sirfsoc_wdt_remove, + .shutdown = sirfsoc_wdt_shutdown, +}; +module_platform_driver(sirfsoc_wdt_driver); + +MODULE_DESCRIPTION("SiRF SoC watchdog driver"); +MODULE_AUTHOR("Xianglong Du <Xianglong.Du@csr.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:sirfsoc-wdt"); diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index 6d665f9..445ea1a 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -603,8 +603,6 @@ MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version " VERSION ")"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - #ifdef SMSC_SUPPORT_MINUTES module_param(unit, int, 0); MODULE_PARM_DESC(unit, diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index b68b1e5..ef2638f 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -207,4 +207,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("Software Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 0e9d8c4..ce63a1b 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -580,4 +580,3 @@ module_exit(sp5100_tco_cleanup_module); MODULE_AUTHOR("Priyanka Gupta"); MODULE_DESCRIPTION("TCO timer driver for SP5100/SB800 chipset"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index 58df98a..3f786ce 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -268,7 +268,6 @@ static int sp805_wdt_remove(struct amba_device *adev) struct sp805_wdt *wdt = amba_get_drvdata(adev); watchdog_unregister_device(&wdt->wdd); - amba_set_drvdata(adev, NULL); watchdog_set_drvdata(&wdt->wdd, NULL); return 0; diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c index c97e98d..d667f6b 100644 --- a/drivers/watchdog/stmp3xxx_rtc_wdt.c +++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c @@ -30,7 +30,7 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat period in seconds from 1 to " static int wdt_start(struct watchdog_device *wdd) { struct device *dev = watchdog_get_drvdata(wdd); - struct stmp3xxx_wdt_pdata *pdata = dev->platform_data; + struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev); pdata->wdt_set_timeout(dev->parent, wdd->timeout * WDOG_TICK_RATE); return 0; @@ -39,7 +39,7 @@ static int wdt_start(struct watchdog_device *wdd) static int wdt_stop(struct watchdog_device *wdd) { struct device *dev = watchdog_get_drvdata(wdd); - struct stmp3xxx_wdt_pdata *pdata = dev->platform_data; + struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev); pdata->wdt_set_timeout(dev->parent, 0); return 0; @@ -108,4 +108,3 @@ module_platform_driver(stmp3xxx_wdt_driver); MODULE_DESCRIPTION("STMP3XXX RTC Watchdog Driver"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c index f6caa771..76332d8 100644 --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -217,7 +217,7 @@ static struct platform_driver sunxi_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = DRV_NAME, - .of_match_table = of_match_ptr(sunxi_wdt_dt_ids) + .of_match_table = sunxi_wdt_dt_ids, }, }; diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c index c9b0c62..09d4831 100644 --- a/drivers/watchdog/ts72xx_wdt.c +++ b/drivers/watchdog/ts72xx_wdt.c @@ -192,7 +192,7 @@ static int ts72xx_wdt_open(struct inode *inode, struct file *file) dev_err(&wdt->pdev->dev, "failed to convert timeout (%d) to register value\n", timeout); - return -EINVAL; + return regval; } if (mutex_lock_interruptible(&wdt->lock)) @@ -305,7 +305,8 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, switch (cmd) { case WDIOC_GETSUPPORT: - error = copy_to_user(argp, &winfo, sizeof(winfo)); + if (copy_to_user(argp, &winfo, sizeof(winfo))) + error = -EFAULT; break; case WDIOC_GETSTATUS: @@ -320,10 +321,9 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_SETOPTIONS: { int options; - if (get_user(options, p)) { - error = -EFAULT; + error = get_user(options, p); + if (error) break; - } error = -EINVAL; @@ -341,30 +341,26 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_SETTIMEOUT: { int new_timeout; + int regval; - if (get_user(new_timeout, p)) { - error = -EFAULT; - } else { - int regval; - - regval = timeout_to_regval(new_timeout); - if (regval < 0) { - error = -EINVAL; - } else { - ts72xx_wdt_stop(wdt); - wdt->regval = regval; - ts72xx_wdt_start(wdt); - } - } + error = get_user(new_timeout, p); if (error) break; + regval = timeout_to_regval(new_timeout); + if (regval < 0) { + error = regval; + break; + } + ts72xx_wdt_stop(wdt); + wdt->regval = regval; + ts72xx_wdt_start(wdt); + /*FALLTHROUGH*/ } case WDIOC_GETTIMEOUT: - if (put_user(regval_to_timeout(wdt->regval), p)) - error = -EFAULT; + error = put_user(regval_to_timeout(wdt->regval), p); break; default: diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c index 88f23c5..0fd0e8a 100644 --- a/drivers/watchdog/txx9wdt.c +++ b/drivers/watchdog/txx9wdt.c @@ -176,5 +176,4 @@ module_platform_driver_probe(txx9wdt_driver, txx9wdt_probe); MODULE_DESCRIPTION("TXx9 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:txx9wdt"); diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c index a614d84..e029b57 100644 --- a/drivers/watchdog/ux500_wdt.c +++ b/drivers/watchdog/ux500_wdt.c @@ -88,7 +88,7 @@ static struct watchdog_device ux500_wdt = { static int ux500_wdt_probe(struct platform_device *pdev) { int ret; - struct ux500_wdt_data *pdata = pdev->dev.platform_data; + struct ux500_wdt_data *pdata = dev_get_platdata(&pdev->dev); if (pdata) { if (pdata->timeout > 0) @@ -167,5 +167,4 @@ module_platform_driver(ux500_wdt_driver); MODULE_AUTHOR("Jonas Aaberg <jonas.aberg@stericsson.com>"); MODULE_DESCRIPTION("Ux500 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:ux500_wdt"); diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c index 92f1326..e24b210 100644 --- a/drivers/watchdog/w83627hf_wdt.c +++ b/drivers/watchdog/w83627hf_wdt.c @@ -1,6 +1,9 @@ /* * w83627hf/thf WDT driver * + * (c) Copyright 2013 Guenter Roeck + * converted to watchdog infrastructure + * * (c) Copyright 2007 Vlad Drukker <vlad@storewiz.com> * added support for W83627THF. * @@ -31,31 +34,22 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> -#include <linux/miscdevice.h> #include <linux/watchdog.h> -#include <linux/fs.h> #include <linux/ioport.h> #include <linux/notifier.h> #include <linux/reboot.h> #include <linux/init.h> -#include <linux/spinlock.h> #include <linux/io.h> -#include <linux/uaccess.h> - #define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT" #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ -static unsigned long wdt_is_open; -static char expect_close; -static DEFINE_SPINLOCK(io_lock); - /* You must set this - there is no sane way to probe for this board. */ static int wdt_io = 0x2E; module_param(wdt_io, int, 0); MODULE_PARM_DESC(wdt_io, "w83627hf/thf WDT io port (default 0x2E)"); -static int timeout = WATCHDOG_TIMEOUT; /* in seconds */ +static int timeout; /* in seconds */ module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1 <= timeout <= 255, default=" @@ -76,236 +70,147 @@ MODULE_PARM_DESC(nowayout, (same as EFER) */ #define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */ -static void w83627hf_select_wd_register(void) +#define W83627HF_LD_WDT 0x08 + +static void superio_outb(int reg, int val) { - unsigned char c; + outb(reg, WDT_EFER); + outb(val, WDT_EFDR); +} + +static inline int superio_inb(int reg) +{ + outb(reg, WDT_EFER); + return inb(WDT_EFDR); +} + +static int superio_enter(void) +{ + if (!request_muxed_region(wdt_io, 2, WATCHDOG_NAME)) + return -EBUSY; + outb_p(0x87, WDT_EFER); /* Enter extended function mode */ outb_p(0x87, WDT_EFER); /* Again according to manual */ - outb(0x20, WDT_EFER); /* check chip version */ - c = inb(WDT_EFDR); - if (c == 0x82) { /* W83627THF */ - outb_p(0x2b, WDT_EFER); /* select GPIO3 */ - c = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */ - outb_p(0x2b, WDT_EFER); - outb_p(c, WDT_EFDR); /* set GPIO3 to WDT0 */ - } else if (c == 0x88 || c == 0xa0) { /* W83627EHF / W83627DHG */ - outb_p(0x2d, WDT_EFER); /* select GPIO5 */ - c = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */ - outb_p(0x2d, WDT_EFER); - outb_p(c, WDT_EFDR); /* set GPIO5 to WDT0 */ - } + return 0; +} - outb_p(0x07, WDT_EFER); /* point to logical device number reg */ - outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */ - outb_p(0x30, WDT_EFER); /* select CR30 */ - outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */ +static void superio_select(int ld) +{ + superio_outb(0x07, ld); } -static void w83627hf_unselect_wd_register(void) +static void superio_exit(void) { outb_p(0xAA, WDT_EFER); /* Leave extended function mode */ + release_region(wdt_io, 2); } /* tyan motherboards seem to set F5 to 0x4C ? * So explicitly init to appropriate value. */ -static void w83627hf_init(void) +static int w83627hf_init(struct watchdog_device *wdog) { + int ret; unsigned char t; - w83627hf_select_wd_register(); + ret = superio_enter(); + if (ret) + return ret; + + superio_select(W83627HF_LD_WDT); + t = superio_inb(0x20); /* check chip version */ + if (t == 0x82) { /* W83627THF */ + t = (superio_inb(0x2b) & 0xf7); + superio_outb(0x2b, t | 0x04); /* set GPIO3 to WDT0 */ + } else if (t == 0x88 || t == 0xa0) { /* W83627EHF / W83627DHG */ + t = superio_inb(0x2d); + superio_outb(0x2d, t & ~0x01); /* set GPIO5 to WDT0 */ + } + + /* set CR30 bit 0 to activate GPIO2 */ + t = superio_inb(0x30); + if (!(t & 0x01)) + superio_outb(0x30, t | 0x01); - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - t = inb_p(WDT_EFDR); /* read CRF6 */ + t = superio_inb(0xF6); if (t != 0) { pr_info("Watchdog already running. Resetting timeout to %d sec\n", - timeout); - outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */ + wdog->timeout); + superio_outb(0xF6, wdog->timeout); } - outb_p(0xF5, WDT_EFER); /* Select CRF5 */ - t = inb_p(WDT_EFDR); /* read CRF5 */ - t &= ~0x0C; /* set second mode & disable keyboard - turning off watchdog */ - t |= 0x02; /* enable the WDTO# output low pulse - to the KBRST# pin (PIN60) */ - outb_p(t, WDT_EFDR); /* Write back to CRF5 */ - - outb_p(0xF7, WDT_EFER); /* Select CRF7 */ - t = inb_p(WDT_EFDR); /* read CRF7 */ - t &= ~0xC0; /* disable keyboard & mouse turning off - watchdog */ - outb_p(t, WDT_EFDR); /* Write back to CRF7 */ - - w83627hf_unselect_wd_register(); -} - -static void wdt_set_time(int timeout) -{ - spin_lock(&io_lock); - - w83627hf_select_wd_register(); + /* set second mode & disable keyboard turning off watchdog */ + t = superio_inb(0xF5) & ~0x0C; + /* enable the WDTO# output low pulse to the KBRST# pin */ + t |= 0x02; + superio_outb(0xF5, t); - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */ + /* disable keyboard & mouse turning off watchdog */ + t = superio_inb(0xF7) & ~0xC0; + superio_outb(0xF7, t); - w83627hf_unselect_wd_register(); + superio_exit(); - spin_unlock(&io_lock); -} - -static int wdt_ping(void) -{ - wdt_set_time(timeout); return 0; } -static int wdt_disable(void) +static int wdt_set_time(unsigned int timeout) { - wdt_set_time(0); - return 0; -} + int ret; + + ret = superio_enter(); + if (ret) + return ret; + + superio_select(W83627HF_LD_WDT); + superio_outb(0xF6, timeout); + superio_exit(); -static int wdt_set_heartbeat(int t) -{ - if (t < 1 || t > 255) - return -EINVAL; - timeout = t; return 0; } -static int wdt_get_time(void) +static int wdt_start(struct watchdog_device *wdog) { - int timeleft; - - spin_lock(&io_lock); - - w83627hf_select_wd_register(); - - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - timeleft = inb_p(WDT_EFDR); /* Read Timeout counter to CRF6 */ - - w83627hf_unselect_wd_register(); - - spin_unlock(&io_lock); - - return timeleft; + return wdt_set_time(wdog->timeout); } -static ssize_t wdt_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static int wdt_stop(struct watchdog_device *wdog) { - if (count) { - if (!nowayout) { - size_t i; - - expect_close = 0; - - for (i = 0; i != count; i++) { - char c; - if (get_user(c, buf + i)) - return -EFAULT; - if (c == 'V') - expect_close = 42; - } - } - wdt_ping(); - } - return count; + return wdt_set_time(0); } -static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout) { - void __user *argp = (void __user *)arg; - int __user *p = argp; - int timeval; - static const struct watchdog_info ident = { - .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | - WDIOF_MAGICCLOSE, - .firmware_version = 1, - .identity = "W83627HF WDT", - }; - - switch (cmd) { - case WDIOC_GETSUPPORT: - if (copy_to_user(argp, &ident, sizeof(ident))) - return -EFAULT; - break; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0, p); - case WDIOC_SETOPTIONS: - { - int options, retval = -EINVAL; - - if (get_user(options, p)) - return -EFAULT; - if (options & WDIOS_DISABLECARD) { - wdt_disable(); - retval = 0; - } - if (options & WDIOS_ENABLECARD) { - wdt_ping(); - retval = 0; - } - return retval; - } - case WDIOC_KEEPALIVE: - wdt_ping(); - break; - case WDIOC_SETTIMEOUT: - if (get_user(timeval, p)) - return -EFAULT; - if (wdt_set_heartbeat(timeval)) - return -EINVAL; - wdt_ping(); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(timeout, p); - case WDIOC_GETTIMELEFT: - timeval = wdt_get_time(); - return put_user(timeval, p); - default: - return -ENOTTY; - } + wdog->timeout = timeout; + return 0; } -static int wdt_open(struct inode *inode, struct file *file) +static unsigned int wdt_get_time(struct watchdog_device *wdog) { - if (test_and_set_bit(0, &wdt_is_open)) - return -EBUSY; - /* - * Activate - */ + unsigned int timeleft; + int ret; - wdt_ping(); - return nonseekable_open(inode, file); -} + ret = superio_enter(); + if (ret) + return 0; -static int wdt_close(struct inode *inode, struct file *file) -{ - if (expect_close == 42) - wdt_disable(); - else { - pr_crit("Unexpected close, not stopping watchdog!\n"); - wdt_ping(); - } - expect_close = 0; - clear_bit(0, &wdt_is_open); - return 0; + superio_select(W83627HF_LD_WDT); + timeleft = superio_inb(0xF6); + superio_exit(); + + return timeleft; } /* * Notifier for system down */ - static int wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused) { if (code == SYS_DOWN || code == SYS_HALT) - wdt_disable(); /* Turn the WDT off */ + wdt_set_time(0); /* Turn the WDT off */ return NOTIFY_DONE; } @@ -314,19 +219,25 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code, * Kernel Interfaces */ -static const struct file_operations wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = wdt_write, - .unlocked_ioctl = wdt_ioctl, - .open = wdt_open, - .release = wdt_close, +static struct watchdog_info wdt_info = { + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, + .identity = "W83627HF Watchdog", }; -static struct miscdevice wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &wdt_fops, +static struct watchdog_ops wdt_ops = { + .owner = THIS_MODULE, + .start = wdt_start, + .stop = wdt_stop, + .set_timeout = wdt_set_timeout, + .get_timeleft = wdt_get_time, +}; + +static struct watchdog_device wdt_dev = { + .info = &wdt_info, + .ops = &wdt_ops, + .timeout = WATCHDOG_TIMEOUT, + .min_timeout = 1, + .max_timeout = 255, }; /* @@ -344,50 +255,39 @@ static int __init wdt_init(void) pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n"); - if (wdt_set_heartbeat(timeout)) { - wdt_set_heartbeat(WATCHDOG_TIMEOUT); - pr_info("timeout value must be 1 <= timeout <= 255, using %d\n", - WATCHDOG_TIMEOUT); - } + watchdog_init_timeout(&wdt_dev, timeout, NULL); + watchdog_set_nowayout(&wdt_dev, nowayout); - if (!request_region(wdt_io, 1, WATCHDOG_NAME)) { - pr_err("I/O address 0x%04x already in use\n", wdt_io); - ret = -EIO; - goto out; + ret = w83627hf_init(&wdt_dev); + if (ret) { + pr_err("failed to initialize watchdog (err=%d)\n", ret); + return ret; } - w83627hf_init(); - ret = register_reboot_notifier(&wdt_notifier); if (ret != 0) { pr_err("cannot register reboot notifier (err=%d)\n", ret); - goto unreg_regions; + return ret; } - ret = misc_register(&wdt_miscdev); - if (ret != 0) { - pr_err("cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + ret = watchdog_register_device(&wdt_dev); + if (ret) goto unreg_reboot; - } pr_info("initialized. timeout=%d sec (nowayout=%d)\n", - timeout, nowayout); + wdt_dev.timeout, nowayout); -out: return ret; + unreg_reboot: unregister_reboot_notifier(&wdt_notifier); -unreg_regions: - release_region(wdt_io, 1); - goto out; + return ret; } static void __exit wdt_exit(void) { - misc_deregister(&wdt_miscdev); + watchdog_unregister_device(&wdt_dev); unregister_reboot_notifier(&wdt_notifier); - release_region(wdt_io, 1); } module_init(wdt_init); @@ -396,4 +296,3 @@ module_exit(wdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Pádraig Brady <P@draigBrady.com>"); MODULE_DESCRIPTION("w83627hf/thf WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c index cd9f3c1..aaf2995 100644 --- a/drivers/watchdog/w83697hf_wdt.c +++ b/drivers/watchdog/w83697hf_wdt.c @@ -458,4 +458,3 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, " "Samuel Tardieu <sam@rfc1149.net>"); MODULE_DESCRIPTION("w83697hf/hg WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c index 274be0b..ff58cb7 100644 --- a/drivers/watchdog/w83697ug_wdt.c +++ b/drivers/watchdog/w83697ug_wdt.c @@ -395,4 +395,3 @@ module_exit(wdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Flemming Frandsen <ff@nrvissing.net>"); MODULE_DESCRIPTION("w83697ug/uf WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c index 7874ae0..f0483c7 100644 --- a/drivers/watchdog/w83877f_wdt.c +++ b/drivers/watchdog/w83877f_wdt.c @@ -406,4 +406,3 @@ module_exit(w83877f_wdt_unload); MODULE_AUTHOR("Scott and Bill Jennings"); MODULE_DESCRIPTION("Driver for watchdog timer in w83877f chip"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c index 5d2c902..91bf55a 100644 --- a/drivers/watchdog/w83977f_wdt.c +++ b/drivers/watchdog/w83977f_wdt.c @@ -527,4 +527,3 @@ module_exit(w83977f_wdt_exit); MODULE_AUTHOR("Jose Goncalves <jose.goncalves@inov.pt>"); MODULE_DESCRIPTION("Driver for watchdog timer in W83977F I/O chip"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c index 25aba6e..db0da7e 100644 --- a/drivers/watchdog/wafer5823wdt.c +++ b/drivers/watchdog/wafer5823wdt.c @@ -322,6 +322,5 @@ module_exit(wafwdt_exit); MODULE_AUTHOR("Justin Cormack"); MODULE_DESCRIPTION("ICP Wafer 5823 Single Board Computer WDT driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of wafer5823wdt.c */ diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c index 05d18b4..461336c 100644 --- a/drivers/watchdog/watchdog_core.c +++ b/drivers/watchdog/watchdog_core.c @@ -77,7 +77,7 @@ int watchdog_init_timeout(struct watchdog_device *wdd, watchdog_check_min_max_timeout(wdd); - /* try to get the tiemout module parameter first */ + /* try to get the timeout module parameter first */ if (!watchdog_timeout_invalid(wdd, timeout_parm)) { wdd->timeout = timeout_parm; return ret; diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c index 3045deb..0240c60 100644 --- a/drivers/watchdog/wdrtas.c +++ b/drivers/watchdog/wdrtas.c @@ -48,8 +48,6 @@ MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>"); MODULE_DESCRIPTION("RTAS watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); static bool wdrtas_nowayout = WATCHDOG_NOWAYOUT; static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0); diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c index ee4333c..e0206b5 100644 --- a/drivers/watchdog/wdt.c +++ b/drivers/watchdog/wdt.c @@ -664,6 +664,4 @@ module_exit(wdt_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("Driver for ISA ICS watchdog cards (WDT500/501)"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c index 5eec740..7355ddd0 100644 --- a/drivers/watchdog/wdt285.c +++ b/drivers/watchdog/wdt285.c @@ -224,7 +224,6 @@ static void __exit footbridge_watchdog_exit(void) MODULE_AUTHOR("Phil Blundell <pb@nexus.co.uk>"); MODULE_DESCRIPTION("Footbridge watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c index 65a4023..a8e6f87 100644 --- a/drivers/watchdog/wdt977.c +++ b/drivers/watchdog/wdt977.c @@ -507,4 +507,3 @@ module_exit(wd977_exit); MODULE_AUTHOR("Woody Suwalski <woodys@xandros.com>"); MODULE_DESCRIPTION("W83977AF Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c index 36a54c0..ee89ba4 100644 --- a/drivers/watchdog/wdt_pci.c +++ b/drivers/watchdog/wdt_pci.c @@ -744,5 +744,3 @@ module_pci_driver(wdtpci_driver); MODULE_AUTHOR("JP Nollmann, Alan Cox"); MODULE_DESCRIPTION("Driver for the ICS PCI-WDT500/501 watchdog cards"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c index d4e47ed..e243bd0 100644 --- a/drivers/watchdog/wm831x_wdt.c +++ b/drivers/watchdog/wm831x_wdt.c @@ -184,7 +184,7 @@ static const struct watchdog_ops wm831x_wdt_ops = { static int wm831x_wdt_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *chip_pdata; + struct wm831x_pdata *chip_pdata = dev_get_platdata(pdev->dev.parent); struct wm831x_watchdog_pdata *pdata; struct wm831x_wdt_drvdata *driver_data; struct watchdog_device *wm831x_wdt; @@ -231,12 +231,10 @@ static int wm831x_wdt_probe(struct platform_device *pdev) wm831x_wdt->timeout = wm831x_wdt_cfgs[i].time; /* Apply any configuration */ - if (pdev->dev.parent->platform_data) { - chip_pdata = pdev->dev.parent->platform_data; + if (chip_pdata) pdata = chip_pdata->watchdog; - } else { + else pdata = NULL; - } if (pdata) { reg &= ~(WM831X_WDOG_SECACT_MASK | WM831X_WDOG_PRIMACT_MASK | diff --git a/drivers/watchdog/xen_wdt.c b/drivers/watchdog/xen_wdt.c index 92ad33d..7a42dff 100644 --- a/drivers/watchdog/xen_wdt.c +++ b/drivers/watchdog/xen_wdt.c @@ -362,4 +362,3 @@ MODULE_AUTHOR("Jan Beulich <jbeulich@novell.com>"); MODULE_DESCRIPTION("Xen WatchDog Timer Driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); |
