mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-16 01:04:08 +08:00
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog changes from Wim Van Sebroeck: - addition of MOXA ART watchdog driver (moxart_wdt) - addition of CSR SiRFprimaII and SiRFatlasVI watchdog driver (sirfsoc_wdt) - addition of ralink watchdog driver (rt2880_wdt) - various fixes and cleanups (__user annotation, ioctl return codes, removal of redundant of_match_ptr, removal of unnecessary amba_set_drvdata(), use allocated buffer for usb_control_msg, ...) - removal of MODULE_ALIAS_MISCDEV statements - watchdog related DT bindings - first set of improvements on the w83627hf_wdt driver * git://www.linux-watchdog.org/linux-watchdog: (26 commits) watchdog: w83627hf: Use helper functions to access superio registers watchdog: w83627hf: Enable watchdog device only if not already enabled watchdog: w83627hf: Enable watchdog only once watchdog: w83627hf: Convert to watchdog infrastructure watchdog: omap_wdt: raw read and write endian fix watchdog: sirf: don't depend on dummy value of CLOCK_TICK_RATE watchdog: pcwd_usb: overflow in usb_pcwd_send_command() watchdog: rt2880_wdt: fix return value check in rt288x_wdt_probe() watchdog: watchdog_core: Fix a trivial typo watchdog: dw: Enable OF support for DW watchdog timer watchdog: Get rid of MODULE_ALIAS_MISCDEV statements watchdog: ts72xx_wdt: Propagate return value from timeout_to_regval watchdog: pcwd_usb: Use allocated buffer for usb_control_msg watchdog: sp805_wdt: Remove unnecessary amba_set_drvdata() watchdog: sirf: add watchdog driver of CSR SiRFprimaII and SiRFatlasVI watchdog: Remove redundant of_match_ptr watchdog: ts72xx_wdt: cleanup return codes in ioctl documentation/devicetree: Move DT bindings from gpio to watchdog watchdog: add ralink watchdog driver watchdog: Add MOXA ART watchdog driver ...
This commit is contained in:
commit
27b5c3f3cc
21
Documentation/devicetree/bindings/watchdog/dw_wdt.txt
Normal file
21
Documentation/devicetree/bindings/watchdog/dw_wdt.txt
Normal file
@ -0,0 +1,21 @@
|
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Synopsys Designware Watchdog Timer
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Required Properties:
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- compatible : Should contain "snps,dw-wdt"
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- reg : Base address and size of the watchdog timer registers.
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- clocks : phandle + clock-specifier for the clock that drives the
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watchdog timer.
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Optional Properties:
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- interrupts : The interrupt used for the watchdog timeout warning.
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Example:
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watchdog0: wd@ffd02000 {
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compatible = "snps,dw-wdt";
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reg = <0xffd02000 0x1000>;
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interrupts = <0 171 4>;
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clocks = <&per_base_clk>;
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};
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@ -0,0 +1,15 @@
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MOXA ART Watchdog timer
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Required properties:
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- compatible : Must be "moxa,moxart-watchdog"
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- reg : Should contain registers location and length
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- clocks : Should contain phandle for the clock that drives the counter
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Example:
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watchdog: watchdog@98500000 {
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compatible = "moxa,moxart-watchdog";
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reg = <0x98500000 0x10>;
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clocks = <&coreclk>;
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};
|
19
Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt
Normal file
19
Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt
Normal file
@ -0,0 +1,19 @@
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Ralink Watchdog Timers
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Required properties:
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- compatible: must be "ralink,rt2880-wdt"
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- reg: physical base address of the controller and length of the register range
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Optional properties:
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- interrupt-parent: phandle to the INTC device node
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- interrupts: Specify the INTC interrupt number
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Example:
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watchdog@120 {
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compatible = "ralink,rt2880-wdt";
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reg = <0x120 0x10>;
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interrupt-parent = <&intc>;
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interrupts = <1>;
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};
|
14
Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
Normal file
14
Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
Normal file
@ -0,0 +1,14 @@
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SiRFSoC Timer and Watchdog Timer(WDT) Controller
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Required properties:
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- compatible: "sirf,prima2-tick"
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- reg: Address range of tick timer/WDT register set
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- interrupts: interrupt number to the cpu
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Example:
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timer@b0020000 {
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compatible = "sirf,prima2-tick";
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reg = <0xb0020000 0x1000>;
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interrupts = <0>;
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};
|
@ -39,6 +39,7 @@ CONFIG_SPI=y
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CONFIG_SPI_SIRF=y
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CONFIG_SPI_SPIDEV=y
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# CONFIG_HWMON is not set
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CONFIG_WATCHDOG=y
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CONFIG_USB_GADGET=y
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CONFIG_USB_MASS_STORAGE=m
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CONFIG_MMC=y
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|
@ -392,6 +392,25 @@ config RETU_WATCHDOG
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To compile this driver as a module, choose M here: the
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module will be called retu_wdt.
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config MOXART_WDT
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tristate "MOXART watchdog"
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depends on ARCH_MOXART
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help
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Say Y here to include Watchdog timer support for the watchdog
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existing on the MOXA ART SoC series platforms.
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To compile this driver as a module, choose M here: the
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module will be called moxart_wdt.
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config SIRFSOC_WATCHDOG
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tristate "SiRFSOC watchdog"
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depends on ARCH_SIRF
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select WATCHDOG_CORE
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default y
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help
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Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
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the watchdog triggers the system will be reset.
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# AVR32 Architecture
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config AT32AP700X_WDT
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@ -866,6 +885,7 @@ config VIA_WDT
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config W83627HF_WDT
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tristate "W83627HF/W83627DHG Watchdog Timer"
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depends on X86
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select WATCHDOG_CORE
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---help---
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This is the driver for the hardware watchdog on the W83627HF chipset
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as used in Advantech PC-9578 and Tyan S2721-533 motherboards
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@ -1125,6 +1145,13 @@ config LANTIQ_WDT
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help
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Hardware driver for the Lantiq SoC Watchdog Timer.
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config RALINK_WDT
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tristate "Ralink SoC watchdog"
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select WATCHDOG_CORE
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depends on RALINK
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help
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Hardware driver for the Ralink SoC Watchdog Timer.
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# PARISC Architecture
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# POWERPC Architecture
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|
@ -55,6 +55,8 @@ obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o
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obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o
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obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o
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obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o
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obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o
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obj-$(CONFIG_SIRFSOC_WATCHDOG) += sirfsoc_wdt.o
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# AVR32 Architecture
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obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
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@ -134,6 +136,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
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obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
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octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
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obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o
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obj-$(CONFIG_RALINK_WDT) += rt2880_wdt.o
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# PARISC Architecture
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|
@ -60,8 +60,7 @@
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#include <linux/types.h> /* For standard types (like size_t) */
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#include <linux/errno.h> /* For the -ENODEV/... values */
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#include <linux/kernel.h> /* For printk/panic/... */
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#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV
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(WATCHDOG_MINOR) */
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#include <linux/miscdevice.h> /* For struct miscdevice */
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#include <linux/watchdog.h> /* For the watchdog specific items */
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#include <linux/fs.h> /* For file operations */
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#include <linux/ioport.h> /* For io-port access */
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@ -337,4 +336,3 @@ module_exit(acq_exit);
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MODULE_AUTHOR("David Woodhouse");
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MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver");
|
||||
MODULE_LICENSE("GPL");
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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|
@ -345,4 +345,3 @@ module_exit(advwdt_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>");
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MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver");
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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|
@ -452,4 +452,3 @@ module_exit(watchdog_exit);
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MODULE_AUTHOR("Alan Cox");
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MODULE_DESCRIPTION("ALi M1535 PMU Watchdog Timer driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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||||
|
@ -425,4 +425,3 @@ MODULE_DEVICE_TABLE(pci, alim7101_pci_tbl);
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MODULE_AUTHOR("Steve Hill");
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MODULE_DESCRIPTION("ALi M7101 PMU Computer Watchdog Timer driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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||||
|
@ -46,7 +46,6 @@
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||||
MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>");
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MODULE_DESCRIPTION(LONGNAME);
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MODULE_LICENSE("GPL");
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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|
||||
static int margin = 60;
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module_param(margin, int, 0);
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||||
|
@ -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");
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||||
MODULE_LICENSE("GPL");
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||||
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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||||
|
@ -269,7 +269,7 @@ static struct platform_driver at91wdt_driver = {
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.driver = {
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.name = "at91_wdt",
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(at91_wdt_dt_ids),
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.of_match_table = at91_wdt_dt_ids,
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},
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};
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@ -297,5 +297,4 @@ module_exit(at91_wdt_exit);
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MODULE_AUTHOR("Andrew Victor");
|
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MODULE_DESCRIPTION("Watchdog driver for Atmel AT91RM9200");
|
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MODULE_LICENSE("GPL");
|
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
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MODULE_ALIAS("platform:at91_wdt");
|
||||
|
@ -329,4 +329,3 @@ MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org");
|
||||
MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org");
|
||||
MODULE_LICENSE("GPL v2");
|
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MODULE_ALIAS("platform:" DRIVER_NAME);
|
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
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|
@ -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");
|
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MODULE_LICENSE("GPL");
|
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MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
||||
|
@ -317,5 +317,4 @@ MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
|
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MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
||||
MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
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MODULE_ALIAS("platform:bcm63xx-wdt");
|
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|
@ -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");
|
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MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
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|
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module_param(timeout, uint, 0);
|
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MODULE_PARM_DESC(timeout,
|
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|
@ -289,7 +289,6 @@ MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>");
|
||||
MODULE_DESCRIPTION("sma cpu5 watchdog driver");
|
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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");
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||||
|
@ -267,5 +267,4 @@ MODULE_PARM_DESC(heartbeat,
|
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__MODULE_STRING(DEFAULT_HEARTBEAT));
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
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MODULE_ALIAS("platform:watchdog");
|
||||
|
@ -29,6 +29,7 @@
|
||||
#include <linux/miscdevice.h>
|
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#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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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 */
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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 */
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -258,4 +258,3 @@ MODULE_PARM_DESC(nodelay,
|
||||
"(max6373/74 only, default=0)");
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|
||||
|
@ -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);
|
||||
|
165
drivers/watchdog/moxart_wdt.c
Normal file
165
drivers/watchdog/moxart_wdt.c
Normal file
@ -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>");
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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) ").");
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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;
|
||||
}
|
||||
|
||||
|
@ -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);
|
||||
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
207
drivers/watchdog/rt2880_wdt.c
Normal file
207
drivers/watchdog/rt2880_wdt.c
Normal file
@ -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");
|
@ -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");
|
||||
|
@ -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);
|
||||
|
@ -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
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
||||
|
@ -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 */
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
||||
|
@ -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);
|
||||
|
@ -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,
|
||||
|
226
drivers/watchdog/sirfsoc_wdt.c
Normal file
226
drivers/watchdog/sirfsoc_wdt.c
Normal file
@ -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");
|
@ -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,
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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;
|
||||
|
@ -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);
|
||||
|
@ -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,
|
||||
},
|
||||
};
|
||||
|
||||
|
@ -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:
|
||||
|
@ -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");
|
||||
|
@ -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");
|
||||
|
@ -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 */
|
||||
}
|
||||
|
||||
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 */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void w83627hf_unselect_wd_register(void)
|
||||
static void superio_select(int ld)
|
||||
{
|
||||
superio_outb(0x07, ld);
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
|
||||
t = inb_p(WDT_EFDR); /* read CRF6 */
|
||||
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);
|
||||
|
||||
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 */
|
||||
/* 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(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 */
|
||||
/* disable keyboard & mouse turning off watchdog */
|
||||
t = superio_inb(0xF7) & ~0xC0;
|
||||
superio_outb(0xF7, t);
|
||||
|
||||
w83627hf_unselect_wd_register();
|
||||
}
|
||||
superio_exit();
|
||||
|
||||
static void wdt_set_time(int timeout)
|
||||
{
|
||||
spin_lock(&io_lock);
|
||||
|
||||
w83627hf_select_wd_register();
|
||||
|
||||
outb_p(0xF6, WDT_EFER); /* Select CRF6 */
|
||||
outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */
|
||||
|
||||
w83627hf_unselect_wd_register();
|
||||
|
||||
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);
|
||||
int ret;
|
||||
|
||||
ret = superio_enter();
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
superio_select(W83627HF_LD_WDT);
|
||||
superio_outb(0xF6, timeout);
|
||||
superio_exit();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int wdt_set_heartbeat(int t)
|
||||
static int wdt_start(struct watchdog_device *wdog)
|
||||
{
|
||||
if (t < 1 || t > 255)
|
||||
return -EINVAL;
|
||||
timeout = t;
|
||||
return wdt_set_time(wdog->timeout);
|
||||
}
|
||||
|
||||
static int wdt_stop(struct watchdog_device *wdog)
|
||||
{
|
||||
return wdt_set_time(0);
|
||||
}
|
||||
|
||||
static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout)
|
||||
{
|
||||
wdog->timeout = timeout;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int wdt_get_time(void)
|
||||
static unsigned int wdt_get_time(struct watchdog_device *wdog)
|
||||
{
|
||||
int timeleft;
|
||||
unsigned int timeleft;
|
||||
int ret;
|
||||
|
||||
spin_lock(&io_lock);
|
||||
ret = superio_enter();
|
||||
if (ret)
|
||||
return 0;
|
||||
|
||||
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);
|
||||
superio_select(W83627HF_LD_WDT);
|
||||
timeleft = superio_inb(0xF6);
|
||||
superio_exit();
|
||||
|
||||
return timeleft;
|
||||
}
|
||||
|
||||
static ssize_t wdt_write(struct file *file, const char __user *buf,
|
||||
size_t count, loff_t *ppos)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
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;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int wdt_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
if (test_and_set_bit(0, &wdt_is_open))
|
||||
return -EBUSY;
|
||||
/*
|
||||
* Activate
|
||||
*/
|
||||
|
||||
wdt_ping();
|
||||
return nonseekable_open(inode, file);
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/*
|
||||
* 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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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);
|
||||
|
@ -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 */
|
||||
|
@ -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;
|
||||
|
@ -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);
|
||||
|
@ -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");
|
||||
|
@ -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");
|
||||
|
@ -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);
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user