kernel/linux.git/drivers/watchdog, branch v6.1.124

watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04

2025-01-02T09:30:51+00:00

[ Upstream commit 43439076383a7611300334d1357c0f8883f40816 ] For the watchdog timer to work properly on the QCML04 board we need to set PWRGD enable in the Environment Controller Configuration Registers Special Configuration Register 1 when it is not already set, this may be the case when the watchdog is not enabled from within the BIOS. Signed-off-by: James Hilliard Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241025063441.3494837-1-james.hilliard1@gmail.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: rti: of: honor timeout-sec property

2024-12-14T18:54:32+00:00

commit 4962ee045d8f06638714d801ab0fb72f89c16690 upstream. Currently "timeout-sec" Device Tree property is being silently ignored: even though watchdog_init_timeout() is being used, the driver always passes "heartbeat" == DEFAULT_HEARTBEAT == 60 as argument. Fix this by setting struct watchdog_device::timeout to DEFAULT_HEARTBEAT and passing real module parameter value to watchdog_init_timeout() (which may now be 0 if not specified). Cc: stable@vger.kernel.org Fixes: 2d63908bdbfb ("watchdog: Add K3 RTI watchdog support") Signed-off-by: Alexander Sverdlin Reviewed-by: Vignesh Raghavendra Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241107203830.1068456-1-alexander.sverdlin@siemens.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Greg Kroah-Hartman

watchdog: mediatek: Make sure system reset gets asserted in mtk_wdt_restart()

2024-12-14T18:54:18+00:00

[ Upstream commit a1495a21e0b8aad92132dfcf9c6fffc1bde9d5b2 ] Clear the IRQ enable bit of WDT_MODE before asserting software reset in order to make TOPRGU issue a system reset signal instead of an IRQ. Fixes: a44a45536f7b ("watchdog: Add driver for Mediatek watchdog") Signed-off-by: Yassine Oudjana Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241106104738.195968-2-y.oudjana@protonmail.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: apple: Actually flush writes after requesting watchdog restart

2024-12-14T18:54:18+00:00

[ Upstream commit 51dfe714c03c066aabc815a2bb2adcc998dfcb30 ] Although there is an existing code comment about flushing the writes, writes were not actually being flushed. Actually flush the writes by changing readl_relaxed() to readl(). Fixes: 4ed224aeaf661 ("watchdog: Add Apple SoC watchdog driver") Suggested-by: Arnd Bergmann Signed-off-by: Nick Chan Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20241001170018.20139-2-towinchenmi@gmail.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

iTCO_wdt: mask NMI_NOW bit for update_no_reboot_bit() call

2024-12-14T18:54:18+00:00

[ Upstream commit daa814d784ac034c62ab3fb0ef83daeafef527e2 ] Commit da23b6faa8bf ("watchdog: iTCO: Add support for Cannon Lake PCH iTCO") does not mask NMI_NOW bit during TCO1_CNT register's value comparison for update_no_reboot_bit() call causing following failure: ... iTCO_vendor_support: vendor-support=0 iTCO_wdt iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS ... and this can lead to unexpected NMIs later during regular crashkernel's workflow because of watchdog probe call failures. This change masks NMI_NOW bit for TCO1_CNT register values to avoid unexpected NMI_NOW bit inversions. Fixes: da23b6faa8bf ("watchdog: iTCO: Add support for Cannon Lake PCH iTCO") Signed-off-by: Oleksandr Ocheretnyi Reviewed-by: Guenter Roeck Reviewed-by: Mika Westerberg Link: https://lore.kernel.org/r/20240913191403.2560805-1-oocheret@cisco.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: imx_sc_wdt: Don't disable WDT in suspend

2024-10-17T13:21:06+00:00

[ Upstream commit 2d9d6d300fb0a4ae4431bb308027ac9385746d42 ] Parts of the suspend and resume chain is left unprotected if we disable the WDT here. >From experiments we can see that the SCU disables and re-enables the WDT when we enter and leave suspend to ram. By not touching the WDT here we are protected by the WDT all the way to the SCU. Signed-off-by: Jonas Blixt CC: Anson Huang Fixes: 986857acbc9a ("watchdog: imx_sc: Add i.MX system controller watchdog support") Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240801121845.1465765-1-jonas.blixt@actia.se Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: rzg2l_wdt: Check return status of pm_runtime_put()

2024-08-03T06:49:48+00:00

[ Upstream commit 471e45a33302852bf79bc140fe418782f50734f6 ] pm_runtime_put() may return an error code. Check its return status. Along with it the rzg2l_wdt_set_timeout() function was updated to propagate the result of rzg2l_wdt_stop() to its caller. Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L") Signed-off-by: Claudiu Beznea Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240531065723.1085423-5-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: rzg2l_wdt: Use pm_runtime_resume_and_get()

2024-08-03T06:49:48+00:00

[ Upstream commit f0ba0fcdd19943809b1a7f760f77f6673c6aa7f7 ] pm_runtime_get_sync() may return with error. In case it returns with error dev->power.usage_count needs to be decremented. pm_runtime_resume_and_get() takes care of this. Thus use it. Along with it the rzg2l_wdt_set_timeout() function was updated to propagate the result of rzg2l_wdt_start() to its caller. Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L") Signed-off-by: Claudiu Beznea Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240531065723.1085423-4-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin

watchdog: rti_wdt: Set min_hw_heartbeat_ms to accommodate a safety margin

2024-06-16T11:41:39+00:00

commit cae58516534e110f4a8558d48aa4435e15519121 upstream. On AM62x, the watchdog is pet before the valid window is open. Fix min_hw_heartbeat and accommodate a 2% + static offset safety margin. The static offset accounts for max hardware error. Remove the hack in the driver which shifts the open window boundary, since it is no longer necessary due to the fix mentioned above. cc: stable@vger.kernel.org Fixes: 5527483f8f7c ("watchdog: rti-wdt: attach to running watchdog during probe") Signed-off-by: Judith Mendez Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240417205700.3947408-1-jm@ti.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Greg Kroah-Hartman

watchdog: sa1100: Fix PTR_ERR_OR_ZERO() vs NULL check in sa1100dog_probe()

2024-06-12T09:03:40+00:00

[ Upstream commit 413bf4e857fd79617524d5dcd35f463e9aa2dd41 ] devm_ioremap() doesn't return error pointers, it returns NULL on error. Update the check accordingly. Fixes: e86bd43bcfc5 ("watchdog: sa1100: use platform device registration") Signed-off-by: Chen Ni Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240426075808.1582678-1-nichen@iscas.ac.cn Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin