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2023-03-02Merge tag 'linux-watchdog-6.3-rc1' of ↵Linus Torvalds35-372/+269
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - qcom-wdt dt-bindings improvements and additions (like MSM8994 and MDM9615) - mtk_wdt: Add reset_by_toprgu support - devm_clk_get_enabled() helper changes - Fix kmemleak in watchdog_cdev_register - watchdog sysfs improvements - Other fixes and small improvements * tag 'linux-watchdog-6.3-rc1' of git://www.linux-watchdog.org/linux-watchdog: (52 commits) watchdog: at91rm9200: Only warn once about problems in .remove() watchdog: mt7621-wdt: avoid ralink architecture dependent code watchdog: mt7621-wdt: avoid static global declarations dt-bindings: watchdog: mt7621-wdt: add phandle to access system controller registers watchdog: sbsa_wdog: Make sure the timeout programming is within the limits dt-bindings: watchdog: qcom-wdt: add qcom,apss-wdt-sa8775p compatible watchdog: report options in sysfs watchdog: report fw_version in sysfs dt-bindings: watchdog: fsl-imx: document suspend in wait mode watchdog: imx2_wdg: suspend watchdog in WAIT mode watchdog: pcwd_usb: Fix attempting to access uninitialized memory dt-bindings: watchdog: qcom-wdt: merge MSM timer dt-bindings: watchdog: qcom-wdt: allow interrupts dt-bindings: watchdog: qcom-wdt: add qcom,kpss-wdt-mdm9615 dt-bindings: watchdog: qcom-wdt: fix list of MSM timer compatibles dt-bindings: watchdog: qcom-wdt: do not allow fallback alone dt-bindings: watchdog: qcom-wdt: require fallback for IPQ4019 watchdog: Fix kmemleak in watchdog_cdev_register watchdog: Include <linux/kstrtox.h> when appropriate watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path ...
2023-03-02watchdog: at91rm9200: Only warn once about problems in .remove()Uwe Kleine-König1-1/+1
The single difference between returning 0 and returning an error code in a platform remove callback is that in the latter case the platform core emits a warning about the error being ignored. at91wdt_remove() already emits a warning in the error case, so suppress the more generic (and less helpful) one by returning 0. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230217095317.1213387-1-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-03-02watchdog: mt7621-wdt: avoid ralink architecture dependent codeSergio Paracuellos2-6/+20
MT7621 SoC has a system controller node. Watchdog need to access to reset status register. Ralink architecture and related driver are old and from the beggining they are using some architecture dependent operations for accessing this shared registers through 'asm/mach-ralink/ralink_regs.h' header file. However this is not ideal from a driver perspective which can just access to the system controller registers in an arch independent way using regmap syscon APIs. Update Kconfig accordingly to select new added dependencies and allow driver to be compile tested. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230214103936.1061078-6-sergio.paracuellos@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-03-02watchdog: mt7621-wdt: avoid static global declarationsSergio Paracuellos1-37/+65
Instead of using static global definitions in driver code, refactor code introducing a new watchdog driver data structure and use it along the code. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20230214103936.1061078-5-sergio.paracuellos@gmail.com [groeck: unsigned -> unsigned int] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-22Merge tag 's390-6.3-1' of ↵Linus Torvalds1-125/+37
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: - Large cleanup of the con3270/tty3270 driver. Among others this fixes: - Background Color Support - ASCII Line Character Support - VT100 Support - Geometries other than 80x24 - Cleanup and improve cmpxchg() code. Also add cmpxchg_user_key() to uaccess functions, which will be used by KVM to access KVM guest memory with a specific storage key - Add support for user space events counting to CPUMF - Cleanup the vfio/ccw code, which also allows now to properly support 2K Format-2 IDALs - Move kernel page table allocation and initialization to decompressor, which finally allows to enter the kernel with dynamic address translation enabled. This in turn allows to get rid of code with special handling in the kernel, which has to distinguish if DAT is on or off - Replace kretprobe with rethook - Various improvements to vfio/ap queue resets: - Use TAPQ to verify completion of a reset in progress rather than multiple invocations of ZAPQ. - Check TAPQ response codes when verifying successful completion of ZAPQ. - Fix erroneous handling of some error response codes. - Increase the maximum amount of time to wait for successful completion of ZAPQ - Rework system call wrappers to get rid of alias functions, which were only left on s390 - Cleanup diag288_wdt watchdog driver. It has been agreed on with Guenter Roeck that this goes upstream via the s390 tree - Add missing loadparm parameter handling for list-directed ECKD ipl/reipl - Various improvements to memory detection code - Remove arch_cpu_idle_time() since the current implementation is broken, and allows user space observable accounted idle times which can temporarily decrease - Add Reset DAT-Protection support: (only) allow to change PTEs from RO to RW with a new RDP instruction. Unlike the currently used IPTE instruction, this does not necessarily guarantee that TLBs of all CPUs are synchronously flushed; and that remote CPUs can see spurious protection faults. The overall improvement for not requiring an all CPU synchronization, like it is required with IPTE, should be beneficial - Fix KFENCE page fault reporting - Smaller cleanups and improvement all over the place * tag 's390-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (182 commits) s390/irq,idle: simplify idle check s390/processor: add test_and_set_cpu_flag() and test_and_clear_cpu_flag() s390/processor: let cpu helper functions return boolean values s390/kfence: fix page fault reporting s390/zcrypt: introduce ctfm field in struct CPRBX s390: remove confusing comment from uapi types header file vfio/ccw: remove WARN_ON during shutdown s390/entry: remove toolchain dependent micro-optimization s390/mem_detect: do not truncate online memory ranges info s390/vx: remove __uint128_t type from __vector128 struct again s390/mm: add support for RDP (Reset DAT-Protection) s390/mm: define private VM_FAULT_* reasons from top bits Documentation: s390: correct spelling s390/ap: fix status returned by ap_qact() s390/ap: fix status returned by ap_aqic() s390: vfio-ap: tighten the NIB validity check Revert "s390/mem_detect: do not update output parameters on failure" s390/idle: remove arch_cpu_idle_time() and corresponding code s390/vx: use simple assignments to access __vector128 members s390/vx: add 64 and 128 bit members to __vector128 struct ...
2023-02-21Merge tag 'arm-boardfile-remove-6.3' of ↵Linus Torvalds3-88/+7
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC boardfile updates from Arnd Bergmann "Unused boardfile removal for 6.3 This is a follow-up to the deprecation of most of the old-style board files that was merged in linux-6.0, removing them for good. This branch is almost exclusively dead code removal based on those annotations. Some device driver removals went through separate subsystem trees, but the majority is in the same branch, in order to better handle dependencies between the patches and avoid breaking bisection. Unfortunately that leads to merge conflicts against other changes in the subsystem trees, but they should all be trivial to resolve by removing the files. See commit 7d0d3fa7339e ("Merge tag 'arm-boardfiles-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the description of which machines were marked unused and are now removed. The only removals that got postponed are Terastation WXL (mv78xx0) and Jornada720 (StrongARM1100), which turned out to still have potential users" * tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (91 commits) mmc: omap: drop TPS65010 dependency ARM: pxa: restore mfp-pxa320.h usb: ohci-omap: avoid unused-variable warning ARM: debug: remove references in DEBUG_UART_8250_SHIFT to removed configs ARM: s3c: remove obsolete s3c-cpu-freq header MAINTAINERS: adjust SAMSUNG SOC CLOCK DRIVERS after s3c24xx support removal MAINTAINERS: update file entries after arm multi-platform rework and mach-pxa removal ARM: remove CONFIG_UNUSED_BOARD_FILES mfd: remove htc-pasic3 driver w1: remove ds1wm driver usb: remove ohci-tmio driver fbdev: remove w100fb driver fbdev: remove tmiofb driver mmc: remove tmio_mmc driver mfd: remove ucb1400 support mfd: remove toshiba tmio drivers rtc: remove v3020 driver power: remove pda_power supply driver ASoC: pxa: remove unused board support pcmcia: remove unused pxa/sa1100 drivers ...
2023-02-18watchdog: sbsa_wdog: Make sure the timeout programming is within the limitsGeorge Cherian1-0/+1
Make sure to honour the max_hw_heartbeat_ms while programming the timeout value to WOR. Clamp the timeout passed to sbsa_gwdt_set_timeout() to make sure the programmed value is within the permissible range. Fixes: abd3ac7902fb ("watchdog: sbsa: Support architecture version 1") Signed-off-by: George Cherian <george.cherian@marvell.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230209021117.1512097-1-george.cherian@marvell.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: report options in sysfsThomas Weißschuh1-0/+10
This synchronizes the information reported by ioctl and sysfs. The mismatch is confusing because "wdctl" from util-linux uses the ioctl when used with root privileges and sysfs without. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221216-watchdog-sysfs-v2-2-6189311103a9@weissschuh.net [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: report fw_version in sysfsThomas Weißschuh1-0/+10
This synchronizes the information reported by ioctl and sysfs. The mismatch is confusing because "wdctl" from util-linux uses the ioctl when used with root privileges and sysfs without. The file is called "fw_version" instead of "firmware_version" as "firmware_version" is already used as custom attribute by single drivers. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221216-watchdog-sysfs-v2-1-6189311103a9@weissschuh.net Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: imx2_wdg: suspend watchdog in WAIT modeAndrej Picej1-3/+52
Putting device into the "Suspend-To-Idle" mode causes watchdog to trigger and resets the board after set watchdog timeout period elapses. Introduce new device-tree property "fsl,suspend-in-wait" which suspends watchdog in WAIT mode. This is done by setting WDW bit in WCR (Watchdog Control Register). Watchdog operation is restored after exiting WAIT mode as expected. WAIT mode corresponds with Linux's "Suspend-To-Idle". Signed-off-by: Andrej Picej <andrej.picej@norik.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221104070358.426657-2-andrej.picej@norik.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: pcwd_usb: Fix attempting to access uninitialized memoryLi Hua1-2/+4
The stack variable msb and lsb may be used uninitialized in function usb_pcwd_get_temperature and usb_pcwd_get_timeleft when usb card no response. The build waring is: drivers/watchdog/pcwd_usb.c:336:22: error: ‘lsb’ is used uninitialized in this function [-Werror=uninitialized] *temperature = (lsb * 9 / 5) + 32; ~~~~^~~ drivers/watchdog/pcwd_usb.c:328:21: note: ‘lsb’ was declared here unsigned char msb, lsb; ^~~ cc1: all warnings being treated as errors scripts/Makefile.build:250: recipe for target 'drivers/watchdog/pcwd_usb.o' failed make[3]: *** [drivers/watchdog/pcwd_usb.o] Error 1 Fixes: b7e04f8c61a4 ("mv watchdog tree under drivers") Signed-off-by: Li Hua <hucool.lihua@huawei.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221116020706.70847-1-hucool.lihua@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: Fix kmemleak in watchdog_cdev_registerChen Jun1-1/+1
kmemleak reports memory leaks in watchdog_dev_register, as follows: unreferenced object 0xffff888116233000 (size 2048): comm ""modprobe"", pid 28147, jiffies 4353426116 (age 61.741s) hex dump (first 32 bytes): 80 fa b9 05 81 88 ff ff 08 30 23 16 81 88 ff ff .........0#..... 08 30 23 16 81 88 ff ff 00 00 00 00 00 00 00 00 .0#............. backtrace: [<000000007f001ffd>] __kmem_cache_alloc_node+0x157/0x220 [<000000006a389304>] kmalloc_trace+0x21/0x110 [<000000008d640eea>] watchdog_dev_register+0x4e/0x780 [watchdog] [<0000000053c9f248>] __watchdog_register_device+0x4f0/0x680 [watchdog] [<00000000b2979824>] watchdog_register_device+0xd2/0x110 [watchdog] [<000000001f730178>] 0xffffffffc10880ae [<000000007a1a8bcc>] do_one_initcall+0xcb/0x4d0 [<00000000b98be325>] do_init_module+0x1ca/0x5f0 [<0000000046d08e7c>] load_module+0x6133/0x70f0 ... unreferenced object 0xffff888105b9fa80 (size 16): comm ""modprobe"", pid 28147, jiffies 4353426116 (age 61.741s) hex dump (first 16 bytes): 77 61 74 63 68 64 6f 67 31 00 b9 05 81 88 ff ff watchdog1....... backtrace: [<000000007f001ffd>] __kmem_cache_alloc_node+0x157/0x220 [<00000000486ab89b>] __kmalloc_node_track_caller+0x44/0x1b0 [<000000005a39aab0>] kvasprintf+0xb5/0x140 [<0000000024806f85>] kvasprintf_const+0x55/0x180 [<000000009276cb7f>] kobject_set_name_vargs+0x56/0x150 [<00000000a92e820b>] dev_set_name+0xab/0xe0 [<00000000cec812c6>] watchdog_dev_register+0x285/0x780 [watchdog] [<0000000053c9f248>] __watchdog_register_device+0x4f0/0x680 [watchdog] [<00000000b2979824>] watchdog_register_device+0xd2/0x110 [watchdog] [<000000001f730178>] 0xffffffffc10880ae [<000000007a1a8bcc>] do_one_initcall+0xcb/0x4d0 [<00000000b98be325>] do_init_module+0x1ca/0x5f0 [<0000000046d08e7c>] load_module+0x6133/0x70f0 ... The reason is that put_device is not be called if cdev_device_add fails and wdd->id != 0. watchdog_cdev_register wd_data = kzalloc [1] err = dev_set_name [2] .. err = cdev_device_add if (err) { if (wdd->id == 0) { // wdd->id != 0 .. } return err; // [1],[2] would be leaked To fix it, call put_device in all wdd->id cases. Fixes: 72139dfa2464 ("watchdog: Fix the race between the release of watchdog_core_data and cdev") Signed-off-by: Chen Jun <chenjun102@huawei.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221116012714.102066-1-chenjun102@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: Include <linux/kstrtox.h> when appropriateChristophe JAILLET2-0/+2
The kstrto<something>() functions have been moved from kernel.h to kstrtox.h. So, in order to eventually remove <linux/kernel.h> from <linux/watchdog.h>, include the latter directly in the appropriate files. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/08fd5512e569558231247515c04c8596a1d11004.1667646547.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in ↵ruanjinjie1-4/+3
error path free_irq() is missing in case of error in at91_wdt_init(), use devm_request_irq to fix that. Fixes: 5161b31dc39a ("watchdog: at91sam9_wdt: better watchdog support") Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221116094950.3141943-1-ruanjinjie@huawei.com [groeck: Adjust multi-line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: rzg2l_wdt: Handle TYPE-B reset for RZ/V2MFabrizio Castro1-1/+36
As per section 48.4 of the HW User Manual, IPs in the RZ/V2M SoC need either a TYPE-A reset sequence or a TYPE-B reset sequence. More specifically, the watchdog IP needs a TYPE-B reset sequence. If the proper reset sequence isn't implemented, then resetting IPs may lead to undesired behaviour. In the restart callback of the watchdog driver the reset has basically no effect on the desired funcionality, as the register writes following the reset happen before the IP manages to come out of reset. Implement the TYPE-B reset sequence in the watchdog driver to address the issues with the restart callback on RZ/V2M. Fixes: ec122fd94eeb ("watchdog: rzg2l_wdt: Add rzv2m support") Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20221117114907.138583-3-fabrizio.castro.jz@renesas.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: rzg2l_wdt: Issue a reset before we put the PM clocksLad Prabhakar1-6/+4
On RZ/Five SoC it was observed that setting timeout (to say 1 sec) wouldn't reset the system. The procedure described in the HW manual (Procedure for Activating Modules) for activating the target module states we need to start supply of the clock module before applying the reset signal. This patch makes sure we follow the same procedure to clear the registers of the WDT module, fixing the issues seen on RZ/Five SoC. While at it re-used rzg2l_wdt_stop() in rzg2l_wdt_set_timeout() as it has the same function calls. Fixes: 4055ee81009e ("watchdog: rzg2l_wdt: Add set_timeout callback") Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20221117114907.138583-2-fabrizio.castro.jz@renesas.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: dw_wdt: stop on rebootCosmin Tanislav1-0/+1
HW running watchdogs are just watchdogs that are enabled before the Linux driver is probed, usually by the bootloader (eg. U-Boot). When the system is shutting down, the mechanism for keeping a HW running watchdog pinged is also stopped, but the watchdog itself is not stopped, causing a reset, and preventing the system from being shut down. Opt into stopping watchdogs on reboot. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221118150809.102505-1-cosmin.tanislav@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: ziirave_wdt: Convert to i2c's .probe_new()Uwe Kleine-König1-3/+2
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221118224540.619276-597-uwe@kleine-koenig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: iTCO_wdt: Report firmware_versionThomas Weißschuh1-2/+2
Synchronize the reported information in dmesg and the watchdog APIs. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221125221240.2818-1-linux@weissschuh.net Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-18watchdog: da9062: da9063: use unlocked xfer function in restartPrimoz Fiser2-6/+24
Machine resets via da9062/da9063 PMICs are challenging since one needs to use special i2c atomic transfers due to the fact interrupts are disabled in such late system stages. This is the reason both PMICs don't use regmap and have instead opted for i2c_smbus_write_byte_data() in restart handlers. However extensive testing revealed that even using atomic safe function is not enough and occasional resets fail with error message "Failed to shutdown (err = -11)". This is due to the fact that function i2c_smbus_write_byte_data() in turn calls __i2c_lock_bus_helper() which might fail with -EAGAIN when bus lock is already taken and cannot be released anymore. Thus replace i2c_smbus_write_byte_data() with unlocked flavor of i2c_smbus_xfer() function to avoid above dead-lock scenario. At this system stage we don't care about proper locking anymore and only want proper machine reset to be carried out. Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221216083645.2574077-1-primoz.fiser@norik.com [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: wdat_wdt: Avoid unimplemented get_timeleftThomas Weißschuh1-2/+4
As per the specification the action QUERY_COUNTDOWN_PERIOD is optional. If the action is not implemented by the physical device the driver would always report "0" from get_timeleft(). Avoid confusing userspace by only providing get_timeleft() when implemented by the hardware. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221221-wdat_wdt-timeleft-v1-1-8e8a314c36cc@weissschuh.net Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: apple: Use devm_clk_get_enabled() helperChristophe JAILLET1-17/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Sven Peter <sven@svenpeter.dev> Link: https://lore.kernel.org/r/6f312af6160d1e10b616c9adbd1fd8f822db964d.1672473415.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: visconti: Use devm_clk_get_enabled() helperChristophe JAILLET1-16/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/13e8cdf17556da111d1d98a8fe0b1dc1c78007e2.1672417940.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: rzn1: Use devm_clk_get_enabled() helperChristophe JAILLET1-17/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/b1f8b5453791035ad534bd5ed36b49798ff4d9b2.1672418166.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: qcom: Use devm_clk_get_enabled() helperChristophe JAILLET1-15/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/7c2d5f3815949faf6d3a0237a7b5f272f00a7ae9.1672418969.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: armada_37xx: Use devm_clk_get_enabled() helperChristophe JAILLET1-14/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/ccb096879a1309b9918ae956d6bdb9668c69bcda.1672473617.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: bcm7038: Use devm_clk_get_enabled() helperChristophe JAILLET1-14/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/9c055911e9f557b7239000c8e6cfa0cc393a19e9.1672474203.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: rtd119x: Use devm_clk_get_enabled() helperChristophe JAILLET1-15/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/14b521b821279bc5111dc80b55d0936c5767c737.1672418470.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: imx7ulp: Use devm_clk_get_enabled() helperChristophe JAILLET1-14/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/f23a2cf84958adca255b82fd688e7cee0461760f.1672484376.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: davinci: Use devm_clk_get_enabled() helperChristophe JAILLET1-17/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/6a4cf8e8b9d8f555c77395ba2ecadc205553774d.1672483046.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: meson_gxbb: Use devm_clk_get_enabled() helperChristophe JAILLET1-15/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/6c5948373d309408095c1a098b7b4c491c5265f7.1672490071.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: cadence: Use devm_clk_get_enabled() helperChristophe JAILLET1-16/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/615c6c3c46c3ee8e3136725af0ab0b51e1298091.1672474336.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: imgpdc: Use devm_clk_get_enabled() helperChristophe JAILLET1-28/+3
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1f8d1ce1e6a63c507a291aea624b1337326cc563.1672483996.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: of_xilinx_wdt: Use devm_clk_get_enabled() helperChristophe JAILLET1-15/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/2b041dc8230a4ed255051bb2d323da8a51a8d0be.1672491445.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: lpc18xx: Use devm_clk_get_enabled() helperChristophe JAILLET1-28/+2
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/d4c675190d3ddfbba5c354edb4274757f9117304.1672489554.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: pic32-dmt: Use devm_clk_get_enabled() helperChristophe JAILLET1-14/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/f9a4dcfc6d31bd9c1417e2d97a40cc2c1dbc6f30.1672496405.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: pic32-wdt: Use devm_clk_get_enabled() helperChristophe JAILLET1-16/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/4335b4201b535ebc749a98bad0b99e3cb5317c39.1672496563.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: pnx4008: Use devm_clk_get_enabled() helperChristophe JAILLET1-14/+1
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/61f4e39db4c88408ee0149580e9aa925b784bc93.1672496714.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: realtek_otto: Use devm_clk_get_enabled() helperChristophe JAILLET1-15/+2
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the need of a dedicated function used with devm_add_action_or_reset(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Sander Vanheule <sander@svanheule.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/5e4255782fbb43d1b4b5cd03bd12d7a184497134.1672498920.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-12watchdog: mtk_wdt: Add reset_by_toprgu supportAllen-KH Cheng1-0/+7
In some cases, the MediaTek watchdog requires the TOPRGU to reset timer after system resets. Provide a reset_by_toprgu parameter for configuration. Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230117014023.2993-3-allen-kh.cheng@mediatek.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-02-06watchdog: diag288_wdt: unify lpar and zvm diag288 helpersAlexander Egorenkov1-19/+13
Change naming of the internal diag288 helper functions to improve overall readability and reduce confusion: * Rename __diag288() to diag288(). * Get rid of the misnamed helper __diag288_lpar() that was used not only on LPARs but also zVM and KVM systems. * Rename __diag288_vm() to diag288_str(). Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230203073958.1585738-6-egorenar@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-06watchdog: diag288_wdt: de-duplicate diag_stat_inc() callsAlexander Egorenkov1-8/+3
Call diag_stat_inc() from __diag288() to reduce code duplication. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230203073958.1585738-5-egorenar@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-06watchdog: diag288_wdt: unify command buffer handling for diag288 zvmAlexander Egorenkov1-35/+20
Simplify and de-duplicate code by introducing a common single command buffer allocated once at initialization. Moreover, simplify the interface of __diag288_vm() by accepting ASCII strings as the command parameter and converting it to the EBCDIC format within the function itself. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230203073958.1585738-4-egorenar@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-06watchdog: diag288_wdt: remove power managementAlexander Egorenkov1-63/+2
Remove power management because s390 no longer supports hibernation since commit 394216275c7d ("s390: remove broken hibernate / power management support"). Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230203073958.1585738-3-egorenar@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-06watchdog: diag288_wdt: get rid of register asmAlexander Egorenkov1-8/+7
Using register asm statements has been proven to be very error prone, especially when using code instrumentation where gcc may add function calls, which clobbers register contents in an unexpected way. Therefore, get rid of register asm statements in watchdog code, and make sure this bug class cannot happen. Moreover, remove the register r1 from the clobber list because this register is not changed by DIAG 288. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230203073958.1585738-2-egorenar@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-30watchdog: diag288_wdt: fix __diag288() inline assemblyAlexander Egorenkov1-1/+1
The DIAG 288 statement consumes an EBCDIC string the address of which is passed in a register. Use a "memory" clobber to tell the compiler that memory is accessed within the inline assembly. Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-30watchdog: diag288_wdt: do not use stack buffers for hardware dataAlexander Egorenkov1-2/+11
With CONFIG_VMAP_STACK=y the stack is allocated from the vmalloc space. Data passed to a hardware or a hypervisor interface that requires V=R can no longer be allocated on the stack. Use kmalloc() to get memory for a diag288 command. Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-16ARM: s3c: remove s3c24xx specific hacksArnd Bergmann2-86/+7
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-11ARM: footbridge: remove CATSArnd Bergmann1-2/+0
Nobody seems to have a CATS machine any more, so remove it now, leaving only NetWinder and EBSA285. Cc: Russell King <linux@armlinux.org.uk> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-17Merge tag 'linux-watchdog-6.2-rc1' of ↵Linus Torvalds12-64/+349
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - Add Advantech EC watchdog driver - Add support for MT6795 Helio X10 watchdog and toprgu - Add support for MT8188 watchdog device - Remove #ifdef guards for PM related functions - Other fixes and improvements * tag 'linux-watchdog-6.2-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: aspeed: Enable pre-timeout interrupt watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running watchdog: rn5t618: add support for read out bootstatus watchdog: kempld: Remove #ifdef guards for PM related functions watchdog: omap: Remove #ifdef guards for PM related functions watchdog: twl4030: Remove #ifdef guards for PM related functions watchdog: at91rm9200: Remove #ifdef guards for PM related functions watchdog: Add Advantech EC watchdog driver dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8173 dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT6795 dt-bindings: watchdog: mediatek: Convert mtk-wdt to json-schema watchdog: mediatek: mt8188: add wdt support dt-bindings: reset: mt8188: add toprgu reset-controller header file dt-bindings: watchdog: Add compatible for MediaTek MT8188 watchdog: mtk_wdt: Add support for MT6795 Helio X10 watchdog and toprgu
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-26 07:40:42 +0300