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Highlights:
- Microsoft Surface:
- SSAM hot unplug support
- Surface Pro 8 keyboard cover support
- Tablet mode switch support for Surface Pro 8 and Surface Laptop Studio
- thinkpad_acpi: AMD Automatice Mode Transitions (AMT) support
- Mellanox:
- Vulcan chassis COMe NVSwitch management support
- XH3000 support
- New generic/shared Intel P2SB (Primary to Sideband) support
- Lots of small cleanups
- Various small bugfixes
- Various new hardware ids / quirks additions
The following is an automated git shortlog grouped by driver:
ACPI:
- video: Fix acpi_video_handles_brightness_key_presses()
- video: Change how we determine if brightness key-presses are handled
Documentation/ABI:
- Add new attributes for mlxreg-io sysfs interfaces
- mlxreg-io: Fix contact info
Drop the PMC_ATOM Kconfig option:
- Drop the PMC_ATOM Kconfig option
EDAC, pnd2:
- convert to use common P2SB accessor
- Use proper I/O accessors and address space annotation
HID:
- surface-hid: Add support for hot-removal
ISST:
- PUNIT device mapping with Sub-NUMA clustering
Kconfig:
- Remove unnecessary "if X86"
MAINTAINERS:
- repair file entry in MICROSOFT SURFACE AGGREGATOR TABLET-MODE SWITCH
Merge tag 'ib-mfd-edac-i2c-leds-pinctrl-platform-watchdog-v5.20' into review-hans:
- Merge tag 'ib-mfd-edac-i2c-leds-pinctrl-platform-watchdog-v5.20' into review-hans
Move AMD platform drivers to separate directory:
- Move AMD platform drivers to separate directory
acer-wmi:
- Use backlight helper
acer_wmi:
- Cleanup Kconfig selects
apple-gmux:
- Use backlight helper
asus-wmi:
- Add mic-mute LED classdev support
- Add key mappings
compal-laptop:
- Use backlight helper
efi:
- Fix efi_power_off() not being run before acpi_power_off() when necessary
gigabyte-wmi:
- add support for B660I AORUS PRO DDR4
hp-wmi:
- Ignore Sanitization Mode event
i2c:
- i801: convert to use common P2SB accessor
ideapad-laptop:
- Add Ideapad 5 15ITL05 to ideapad_dytc_v4_allow_table[]
- Add allow_v4_dytc module parameter
intel/pmc:
- Add Alder Lake N support to PMC core driver
intel_atomisp2_led:
- Also turn off the always-on camera LED on the Asus T100TAF
leds:
- simatic-ipc-leds-gpio: Add GPIO version of Siemens driver
- simatic-ipc-leds: Convert to use P2SB accessor
mfd:
- lpc_ich: Add support for pinctrl in non-ACPI system
- lpc_ich: Switch to generic p2sb_bar()
- lpc_ich: Factor out lpc_ich_enable_spi_write()
mlx-platform:
- Add COME board revision register
- Add support for new system XH3000
- Introduce support for COMe NVSwitch management module for Vulcan chassis
- Add support for systems equipped with two ASICs
- Add cosmetic changes for alignment
- Make activation of some drivers conditional
p2sb:
- Move out of X86_PLATFORM_DEVICES dependency
panasonic-laptop:
- Use acpi_video_get_backlight_type()
- filter out duplicate volume up/down/mute keypresses
- don't report duplicate brightness key-presses
- revert "Resolve hotkey double trigger bug"
- sort includes alphabetically
- de-obfuscate button codes
pinctrl:
- intel: Check against matching data instead of ACPI companion
platform/mellanox:
- mlxreg-lc: Fix error flow and extend verbosity
- mlxreg-io: Add locking for io operations
- nvsw-sn2201: fix error code in nvsw_sn2201_create_static_devices()
platform/olpc:
- Fix uninitialized data in debugfs write
platform/surface:
- gpe: Add support for 13" Intel version of Surface Laptop 4
- tabletsw: Fix __le32 integer access
- Update copyright year of various drivers
- aggregator: Move subsystem hub drivers to their own module
- aggregator: Move device registry helper functions to core module
- aggregator_registry: Add support for tablet mode switch on Surface Laptop Studio
- aggregator_registry: Add support for tablet mode switch on Surface Pro 8
- Add KIP/POS tablet-mode switch driver
- aggregator: Add helper macros for requests with argument and return value
- aggregator: Reserve more event- and target-categories
- avoid flush_scheduled_work() usage
- aggregator_registry: Add support for keyboard cover on Surface Pro 8
- aggregator_registry: Add KIP device hub
- aggregator_registry: Change device ID for base hub
- aggregator_registry: Generify subsystem hub functionality
- aggregator: Add comment for KIP subsystem category
- aggregator_registry: Use client device wrappers for notifier registration
- aggregator: Allow notifiers to avoid communication on unregistering
- aggregator: Allow devices to be marked as hot-removed
- aggregator: Allow is_ssam_device() to be used when CONFIG_SURFACE_AGGREGATOR_BUS is disabled
platform/x86/amd/pmc:
- Add new platform support
- Add new acpi id for PMC controller
platform/x86/dell:
- Kconfig: Remove unnecessary "depends on X86_PLATFORM_DEVICES"
platform/x86/intel:
- Add Primary to Sideband (P2SB) bridge support
platform/x86/intel/ifs:
- Mark as BROKEN
platform/x86/intel/pmt:
- telemetry: Fix fixed region handling
platform/x86/intel/vsec:
- Fix wrong type for local status variables
- Add PCI error recovery support to Intel PMT
- Add support for Raptor Lake
- Rework early hardware code
pmc_atom:
- Fix comment typo
- Match all Lex BayTrail boards with critclk_systems DMI table
power/supply:
- surface_battery: Use client device wrappers for notifier registration
- surface_charger: Use client device wrappers for notifier registration
serial-multi-instantiate:
- Sort ACPI IDs by HID
- Get rid of redundant 'else'
- Use while (i--) pattern to clean up
- Improve dev_err_probe() messaging
- Drop duplicate check
- Improve autodetection
simatic-ipc:
- drop custom P2SB bar code
sony-laptop:
- Remove useless comparisons in sony_pic_read_possible_resource()
system76_acpi:
- Use dev_get_drvdata
thinkpad_acpi:
- Enable AMT by default on supported systems
- Add support for hotkey 0x131a
- Add support for automatic mode transitions
- profile capabilities as integer
- do not use PSC mode on Intel platforms
- Fix a memory leak of EFCH MMIO resource
- Replace custom str_on_off() etc
- Sort headers for better maintenance
- Use backlight helper
tools/power/x86/intel-speed-select:
- Remove unneeded semicolon
- Fix off by one check
watchdog:
- simatic-ipc-wdt: convert to use P2SB accessor
x86-android-tablets:
- Fix Lenovo Yoga Tablet 2 830/1050 poweroff again
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Merge tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- Microsoft Surface:
- SSAM hot unplug support
- Surface Pro 8 keyboard cover support
- Tablet mode switch support for Surface Pro 8 and Surface Laptop
Studio
- thinkpad_acpi:
- AMD Automatice Mode Transitions (AMT) support
- Mellanox:
- Vulcan chassis COMe NVSwitch management support
- XH3000 support
- New generic/shared Intel P2SB (Primary to Sideband) support
- Lots of small cleanups
- Various small bugfixes
- Various new hardware ids / quirks additions
* tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (105 commits)
platform/x86/intel/vsec: Fix wrong type for local status variables
platform/x86: p2sb: Move out of X86_PLATFORM_DEVICES dependency
platform/x86: pmc_atom: Fix comment typo
platform/surface: gpe: Add support for 13" Intel version of Surface Laptop 4
platform/olpc: Fix uninitialized data in debugfs write
platform/mellanox: mlxreg-lc: Fix error flow and extend verbosity
platform/x86: pmc_atom: Match all Lex BayTrail boards with critclk_systems DMI table
platform/x86: sony-laptop: Remove useless comparisons in sony_pic_read_possible_resource()
tools/power/x86/intel-speed-select: Remove unneeded semicolon
tools/power/x86/intel-speed-select: Fix off by one check
platform/surface: tabletsw: Fix __le32 integer access
Documentation/ABI: Add new attributes for mlxreg-io sysfs interfaces
Documentation/ABI: mlxreg-io: Fix contact info
platform/mellanox: mlxreg-io: Add locking for io operations
platform/x86: mlx-platform: Add COME board revision register
platform/x86: mlx-platform: Add support for new system XH3000
platform/x86: mlx-platform: Introduce support for COMe NVSwitch management module for Vulcan chassis
platform/x86: mlx-platform: Add support for systems equipped with two ASICs
platform/x86: mlx-platform: Add cosmetic changes for alignment
platform/x86: mlx-platform: Make activation of some drivers conditional
...
Since we have a common P2SB accessor in tree we may use it instead of
open coded variants.
Replace custom code by p2sb_bar() call.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
This is the second part of the general SoC updates, containing
everything that did not make it in the initial pull request,
or that came in as a bugfix later.
- Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip, including
a new machine using an ASPEED BMC.
- More DT fixes from Krzysztof Kozlowski across platforms
- A new SoC platform for the GXP baseboard management controller,
used in current server products from HPE.
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Merge tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM SoC updates from Arnd Bergmann:
"This is the second part of the general SoC updates, containing
everything that did not make it in the initial pull request, or that
came in as a bugfix later.
- Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip,
including a new machine using an ASPEED BMC.
- More DT fixes from Krzysztof Kozlowski across platforms
- A new SoC platform for the GXP baseboard management controller,
used in current server products from HPE"
* tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (56 commits)
ARM: configs: Enable more audio support for i.MX
tee: optee: Pass a pointer to virt_addr_valid()
arm64: dts: rockchip: rename Quartz64-A bluetooth gpios
arm64: dts: rockchip: add clocks property to cru node rk3368
arm64: dts: rockchip: add clocks property to cru node rk3308
arm64: dts: rockchip: add clocks to rk356x cru
ARM: dts: rockchip: add clocks property to cru node rk3228
ARM: dts: rockchip: add clocks property to cru node rk3036
ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188
ARM: dts: rockchip: add clocks property to cru node rk3288
ARM: dts: rockchip: Remove "amba" bus nodes from rv1108
ARM: dts: rockchip: add clocks property to cru node rv1108
arm64: dts: sprd: use new 'dma-channels' property
ARM: dts: da850: use new 'dma-channels' property
ARM: dts: pxa: use new 'dma-channels/requests' properties
soc: ixp4xx/qmgr: Fix unused match warning
ARM: ep93xx: Make ts72xx_register_flash() static
ARM: configs: enable support for Kontron KSwitch D10
ep93xx: clock: Do not return the address of the freed memory
arm64: dts: intel: add device tree for n6000
...
The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went through
several rebases before the merge window as bugs were found, so they
remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files.
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Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM multiplatform updates from Arnd Bergmann:
"The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went
through several rebases before the merge window as bugs were found, so
they remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files"
* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
ARM: pxa/mmp: remove traces of plat-pxa
ARM: pxa: convert to multiplatform
ARM: pxa/sa1100: move I/O space to PCI_IOBASE
ARM: pxa: remove support for MTD_XIP
ARM: pxa: move mach/*.h to mach-pxa/
ARM: PXA: fix multi-cpu build of xsc3
ARM: pxa: move plat-pxa to drivers/soc/
ARM: mmp: rename pxa_register_device
ARM: mmp: remove tavorevb board support
ARM: pxa: remove unused mach/bitfield.h
ARM: pxa: move clk register definitions to driver
ARM: pxa: move smemc register access from clk to platform
cpufreq: pxa3: move clk register access to clk driver
ARM: pxa: remove get_clk_frequency_khz()
ARM: pxa: pcmcia: move smemc configuration back to arch
ASoC: pxa: i2s: use normal MMIO accessors
ASoC: pxa: ac97: use normal MMIO accessors
ASoC: pxa: use pdev resource for FIFO regs
Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
Input: wm97xx - switch to using threaded IRQ
...
of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() in some error paths.
Fixes: bf90063999 ("watchdog: ts4800: add driver for TS-4800 watchdog")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220511114203.47420-1-linmq006@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This is a driver for the standard WDT on the RZ/N1 devices. This WDT has
very limited timeout capabilities. However, it can reset the device.
To do so, the corresponding bits in the SysCtrl RSTEN register need to
be enabled. This is not done by this driver.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220427135531.708279-3-jjhiblot@traphandler.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Test shows that wachdog still reboots machine after the module
is removed. Use watchdog_stop_on_unregister to stop the watchdog
on removing.
Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>
eviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1650984810-6247-4-git-send-email-liuxp11@chinatelecom.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Executing reboot command several times on the machine "Dell
PowerEdge R740", UEFI security detection stopped machine
with the following prompt:
UEFI0082: The system was reset due to a timeout from the watchdog
timer. Check the System Event Log (SEL) or crash dumps from
Operating Sysstem to identify the source that triggered the
watchdog timer reset. Update the firmware or driver for the
identified device.
iDRAC has warning event: "The watchdog timer reset the system".
This patch fixes this issue by adding the reboot notifier.
Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1650984810-6247-3-git-send-email-liuxp11@chinatelecom.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
If max_hw_heartbeat_ms is provided, the configured maximum timeout is not
limited by it. The limit check in this driver therefore doesn't make much
sense. Similar, the watchdog core ensures that minimum timeout limits are
met if min_hw_heartbeat_ms is set. Using watchdog_timeout_invalid() makes
more sense because it takes this into account.
Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1650984810-6247-2-git-send-email-liuxp11@chinatelecom.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
For power management, SET_NOIRQ_SYSTEM_SLEEP_PM_OPS defined for
CONFIG_PM_SLEEP, will point ->suspend_noirq, ->freeze_noirq and
->poweroff_noirq to the same function. Vice versa happens for
->resume_noirq, ->thaw_noirq and ->restore_noirq.
Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1650967905-3199-1-git-send-email-liuxp11@chinatelecom.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1, so a test for negative
value should be used to check for errors.
Fixes: 2d63908bdb ("watchdog: Add K3 RTI watchdog support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220412070824.23708-1-linmq006@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This ensures that the same value is read back as was eventually
programmed when using seconds as accuracy. Even then, comparing the more
precise heartbeat_ms against heartbeat in seconds will almost never
provide a match and will needlessly raise a warning. Fix by comparing
apples to apples.
Tested in combination with U-Boot as watchdog starter.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/6a4b54ac-9588-e172-c4c7-b91d524a851e@siemens.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Disable the watchdog if it is active while removing the module.
It is necessary in order to prevent a reset in case watchdog
hw was running before the removal.
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220414054233.1357-2-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Optionally disable watchdog during suspend (if enabled) and re-enable
it upon resume.
This enables boards to sleep without being interrupted by the watchdog.
This patch is based on commit f6c98b0838 ("watchdog: da9062: add
power management ops") and commit 8541673d2a ("watchdog: da9062: fix
power management ops") and brings the same functionality to DA9063.
Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Reviewed-by: Adam Thomson <DLG-Adam.Thomson.Opensource@dm.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220422072713.3172345-2-primoz.fiser@norik.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add support for the HPE GXP Watchdog. The GXP asic contains a full
complement of timers one of which is the watchdog timer. The watchdog
timer is 16 bit and has 10ms resolution. The watchdog is created as a
child device of timer since the same register range is used.
Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
This patch adds support for set_timeout callback.
Once WDT is started, the WDT cycle setting register(WDTSET) can be updated
only after issuing a module reset. Otherwise, it will ignore the writes
and will hold the previous value. This patch updates the WDTSET register
if it is active.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-8-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This patch uses the force reset(WDTRSTB) for triggering WDT reset for
restart callback. This method(ie, Generate Reset (WDTRSTB) Signal on
parity error)is faster compared to the overflow method for triggering
watchdog reset.
Overflow method:
reboot: Restarting system
Reboot failed -- System halted
NOTICE: BL2: v2.5(release):v2.5/rzg2l-1.00-27-gf48f1440c
Parity error method:
reboot: Restarting system
NOTICE: BL2: v2.5(release):v2.5/rzg2l-1.00-27-gf48f1440c
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-7-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
If reset_control_deassert() fails, then we won't be able to
access the device registers. Therefore check the return code of
reset_control_deassert() and bailout in case of error.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-6-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Both rzg2l_wdt_probe() and rzg2l_wdt_start() calls reset_control_
deassert() which results in a reset control imbalance.
This patch fixes reset control imbalance by removing reset_control_
deassert() from rzg2l_wdt_start() and replaces reset_control_assert with
reset_control_reset in rzg2l_wdt_stop() as watchdog module can be stopped
only by a module reset. This change will allow us to restart WDT after
stop() by configuring WDT timeout and enable registers.
Fixes: 2cbc5cd0b5 ("watchdog: Add Watchdog Timer driver for RZ/G2L")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-5-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Both rzg2l_wdt_probe() and rzg2l_wdt_start() calls pm_runtime_get() which
results in a usage counter imbalance. This patch fixes this issue by
removing pm_runtime_get() call from probe.
Fixes: 2cbc5cd0b5 ("watchdog: Add Watchdog Timer driver for RZ/G2L")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-3-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
The value of timer_cycle_us can be 0 due to 32bit overflow.
For eg:- If we assign the counter value "0xfff" for computing
maxval.
This patch fixes this issue by appending ULL to 1024, so that
it is promoted to 64bit.
This patch also fixes the warning message, 'watchdog: Invalid min and
max timeout values, resetting to 0!'.
Fixes: 2cbc5cd0b5 ("watchdog: Add Watchdog Timer driver for RZ/G2L")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220225175320.11041-2-biju.das.jz@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
A new "compatible" value has been added in the commit 17fffe91ba
("dt-bindings: watchdog: Add BCM6345 compatible to BCM7038 binding").
It's meant to be used for BCM63xx SoCs family but hardware block can be
programmed just like the 7038 one.
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220216063408.23168-1-zajec5@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Rather than relying on machine specific headers to
pass down the reboot status and the register locations,
use resources and platform_data.
Aside from this, keep the changes to a minimum.
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: linux-watchdog@vger.kernel.org
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The mach/hardware.h is included in lots of places, and it provides
three different things on pxa:
- the cpu_is_pxa* macros
- an indirect inclusion of mach/addr-map.h
- the __REG() and io_pv2() helper macros
Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h
headers, then change all the files that use mach/hardware.h to
include the exact set of those three headers that they actually
need, allowing for further more targeted cleanup.
linux/soc/pxa/cpu.h can remain permanently exported and is now in
a global location along with similar headers. pxa-regs.h and
addr-map.h are only used in a very small number of drivers now
and can be moved to arch/arm/mach-pxa/ directly when those drivers
are to pass the necessary data as resources.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-leds@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'linux-watchdog-5.18-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- add support for BCM4908
- renesas_wdt: add R-Car Gen4 support
- improve watchdog_dev function documentation
- sp5100_tco: replace the cd6h/cd7h port I/O with MMIO accesses during
initialization
- several other small improvements and fixes
* tag 'linux-watchdog-5.18-rc1' of git://www.linux-watchdog.org/linux-watchdog:
Watchdog: sp5100_tco: Enable Family 17h+ CPUs
Watchdog: sp5100_tco: Add initialization using EFCH MMIO
Watchdog: sp5100_tco: Refactor MMIO base address initialization
Watchdog: sp5100_tco: Move timer initialization into function
watchdog: ixp4xx: Implement restart
watchdog: orion_wdt: support pretimeout on Armada-XP
watchdog: allow building BCM7038_WDT for BCM4908
watchdog: renesas_wdt: Add R-Car Gen4 support
dt-bindings: watchdog: renesas-wdt: Document r8a779f0 support
watchdog: Improve watchdog_dev function documentation
watchdog: aspeed: add nowayout support
watchdog: rti-wdt: Add missing pm_runtime_disable() in probe function
watchdog: imx2_wdg: Alow ping on suspend
The driver currently uses a CPU family match of 17h to determine
EFCH_PM_DECODEEN_WDT_TMREN register support. This family check will not
support future AMD CPUs and instead will require driver updates to add
support.
Remove the family 17h family check and add a check for SMBus PCI
revision ID 0x51 or greater. The MMIO access method has been available
since at least SMBus controllers using PCI revision 0x51. This revision
check will support family 17h and future AMD processors including EFCH
functionality without requiring driver changes.
Co-developed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Tested-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220202153525.1693378-5-terry.bowman@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
cd6h/cd7h port I/O can be disabled on recent AMD hardware. Read
accesses to disabled cd6h/cd7h port I/O will return F's and written
data is dropped. It is recommended to replace the cd6h/cd7h
port I/O with MMIO.
Co-developed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Tested-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220202153525.1693378-4-terry.bowman@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Combine MMIO base address and alternate base address detection. Combine
based on layout type. This will simplify the function by eliminating
a switch case.
Move existing request/release code into functions. This currently only
supports port I/O request/release. The move into a separate function
will make it ready for adding MMIO region support.
Co-developed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Tested-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220202153525.1693378-3-terry.bowman@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Refactor driver's timer initialization into new function. This is needed
inorder to support adding new device layouts while using common timer
initialization.
Co-developed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Tested-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220202153525.1693378-2-terry.bowman@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Commit e07a4c79ca ("watchdog: orion_wdt: use timer1 as a pretimeout")
added support for a pretimeout on Armada-38x variants. Because the
Armada-XP variants use armada370_start/armada370_stop (due to missing an
explicit RSTOUT mask bit for the watchdog). Add the required pretimeout
support to armada370_start/armada370_stop for Armada-XP.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220211003257.2037332-3-chris.packham@alliedtelesis.co.nz
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
BCM4908 is a SoCs family that shares a lot of hardware with BCM63xx
including the watchdog block. Allow building this driver for it.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220209203202.26395-1-zajec5@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add the compatible string for the R-Car Gen4 family.
No further driver changes are needed.
Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/cc395105e1d34aab2c076d368c0737833970b9d2.1642525158.git.geert+renesas@glider.be
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Adjust function comments to the kernel doc format. It
also adjusts some variable names and adds return values.
No functional change.
Changes from V1:
Change "Returns" to "Return:" (Randy Dunlap)
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/30378a03e9cd9b5f6e92ec9bf512edc38bad8627.1644589712.git.bristot@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add support for not stopping the watchdog
when the userspace application quits. At
closing of the device, the driver cannot
determine if this was a graceful closure
or if the app crashed. If the support
of nowayout on this driver, the system integrator
can select the behaviour by setting the kernel
config and enabling it.
Cc: Wim Van Sebroeck <wim@linux-watchdog.org> (maintainer:WATCHDOG DEVICE DRIVERS)
Cc: Guenter Roeck <linux@roeck-us.net> (maintainer:WATCHDOG DEVICE DRIVERS)
Cc: Joel Stanley <joel@jms.id.au> (supporter:ARM/ASPEED MACHINE SUPPORT)
Cc: Andrew Jeffery <andrew@aj.id.au> (reviewer:ARM/ASPEED MACHINE SUPPORT)
Cc: linux-watchdog@vger.kernel.org (open list:WATCHDOG DEVICE DRIVERS)
Cc: linux-arm-kernel@lists.infradead.org (moderated list:ARM/ASPEED MACHINE SUPPORT)
Cc: linux-aspeed@lists.ozlabs.org (moderated list:ARM/ASPEED MACHINE SUPPORT)
Cc: linux-kernel@vger.kernel.org (open list)
Signed-off-by: Eduardo Valentin <eduval@amazon.com>
Signed-off-by: Eduardo Valentin <evalenti@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220212021033.2344-1-eduval@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Fixes: 2d63908bdb ("watchdog: Add K3 RTI watchdog support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220105092114.23932-1-linmq006@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
The i.MX watchdog cannot be disabled by software once it has been
enabled. This means that it can't be stopped before suspend.
For systems that enter low power mode this is fine, as the watchdog will
be automatically stopped by hardware in low power mode. Not all i.MX
platforms support low power mode in the mainline kernel. For example the
i.MX7D does not enter low power mode and so will be rebooted 2 minutes
after entering sleep states.
This patch introduces a device tree property "fsl,ping-during-suspend"
that can be used to enable ping on suspend support for these systems.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220127104739.312592-1-alistair@alistair23.me
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
- Add support for Maxim MAX77714 PMIC
- Remove Drivers
- Remove support for ST-Ericsson AB8500 DebugFS
- New Device Support
- Add support for Silergy SY7636A to Simple MFD I2C
- Add support for MediaTek MT6366 PMIC to MT6358 IRQ
- Add support for Charger to Intel PMIC CRC
- Add support for Raptor Lake to Intel LPSS PCI
- New Functionality
- Add support for Reboot to Rockchip RK808
- Fix-ups
- Device Tree changes (inc. YAML conversion); silergy,sy7636a, maxim,max77843,
google,cros-ec, maxim,max14577, maxim,max77802,
maxim,max77714, qcom,tcsr, qcom,spmi-pmic,
stericsson,ab8500, stericsson,db8500-prcmu,
samsung,exynos5433-lpass, mt6397, syscon, brcm,cru
- Visible to menuconfig; simple-mfd-i2c
- Clean-up or clarify code; max77686, intel_soc_pmic_crc
- Improve error handling; mc13xxx-core, stmfx, asic3
- Pass device information to child devices; iqs62x, intel-lpss-acpi
- Individually identify IRQ domains; intel_soc_pmic_core
- Remove superfluous code; dbx500-prcmu, exynos-lpass
- Staticify and constify; arizona-i2c
- Mark sometimes used data as __maybe_unused; atmel-flexcom
- Account for different ACPI tables on AOSP/Windows platforms; arizona-spi
- Use provided (platform) APIs; ab8500-core
- Trivial (whitespace, spelling); rohm-bd9576
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Merge tag 'mfd-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Maxim MAX77714 PMIC
Removed Drivers:
- Remove support for ST-Ericsson AB8500 DebugFS
New Device Support:
- Add support for Silergy SY7636A to Simple MFD I2C
- Add support for MediaTek MT6366 PMIC to MT6358 IRQ
- Add support for Charger to Intel PMIC CRC
- Add support for Raptor Lake to Intel LPSS PCI
New Functionality:
- Add support for Reboot to Rockchip RK808
Fix-ups:
- Device Tree changes (includcing YAML conversion) for
silergy,sy7636a, maxim,max77843, google,cros-ec, maxim,max14577,
maxim,max77802, maxim,max77714, qcom,tcsr, qcom,spmi-pmic,
stericsson,ab8500, stericsson,db8500-prcmu,
samsung,exynos5433-lpass, mt6397, syscon, brcm,cru
- Visible to menuconfig; simple-mfd-i2c
- Clean-up or clarify code; max77686, intel_soc_pmic_crc
- Improve error handling; mc13xxx-core, stmfx, asic3
- Pass device information to child devices; iqs62x, intel-lpss-acpi
- Individually identify IRQ domains; intel_soc_pmic_core
- Remove superfluous code; dbx500-prcmu, exynos-lpass
- Staticify and constify; arizona-i2c
- Mark sometimes used data as __maybe_unused; atmel-flexcom
- Account for different ACPI tables on AOSP/Windows platforms; arizona-spi
- Use provided (platform) APIs; ab8500-core
- Trivial (whitespace, spelling); rohm-bd9576"
* tag 'mfd-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (50 commits)
dt-bindings: mfd: syscon: Add microchip,lan966x-cpu-syscon compatible
mfd: bd9576: fix typos in comments
mfd: Use platform_get_irq() to get the interrupt
mfd: db8500-prcmu: Remove unused inline function
mfd: arizona-spi: Add Android board ACPI table handling
mfd: arizona-spi: Split Windows ACPI init code into its own function
mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
MAINTAINERS: Rectify entry for ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
mfd: intel-lpss: Provide an SSP type to the driver
dt-bindings: mfd: brcm,cru: Rename pinctrl node
dt-bindings: Add compatibles for undocumented trivial syscons
mfd: atmel-flexcom: Fix compilation warning
dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC
dt-bindings: mfd: samsung,exynos5433-lpass: Convert to dtschema
mfd: exynos-lpass: Drop unneeded syscon.h include
mfd: intel-lpss: Add Intel Raptor Lake PCH-S PCI IDs
mfd: ab8500: Drop debugfs module
mfd: sta2x11: Use GFP_KERNEL instead of GFP_ATOMIC
mfd: ab8500: Rewrite bindings in YAML
mfd: qcom-spmi-pmic: Add pm8953 compatible
...
Clarify why we need to ping the watchdog before changing the timeout by
quoting the MAX77714 datasheet.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The MAX77714 is a MFD chip whose watchdog has the same programming
procedures as the MAX77620 watchdog, but most register offsets and bit
masks are different, as well as some features.
Support the MAX77714 watchdog by adding a variant description table holding
the differences.
All the features implemented by this driver are available on the MAX77714
except for the lack of a WDTOFFC bit. Instead of using a "HAS_*" flag we
handle this by holding in the cnfg_glbl2_cfg_bits struct field the bits
(i.e. the features) to enable in the CNFG_GLBL2 register. These bits differ
among the two models. This implementation allows to avoid any conditional
code, keeping the execution flow unchanged.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Merge tag 'linux-watchdog-5.17-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- New device support:
- Watchdog Timer driver for RZ/G2L
- Realtek Otto watchdog timer
- Apple SoC watchdog driver
- Fintek F81966
- Remove BCM63XX_WDT after support for this SoC was added to
BCM7038_WDT
- Improvements of the BCM7038_WDT and s3c2410_wdt code
- Several other fixes and improvements
* tag 'linux-watchdog-5.17-rc1' of git://www.linux-watchdog.org/linux-watchdog: (38 commits)
watchdog: msc313e: Check if the WDT was running at boot
watchdog: Add Apple SoC watchdog driver
dt-bindings: watchdog: Add SM6350 and SM8250 compatible
watchdog: s3c2410: Fix getting the optional clock
watchdog: s3c2410: Use platform_get_irq() to get the interrupt
dt-bindings: watchdog: atmel: Add missing 'interrupts' property
watchdog: mtk_wdt: use platform_get_irq_optional
watchdog: Add Watchdog Timer driver for RZ/G2L
dt-bindings: watchdog: renesas,wdt: Add support for RZ/G2L
watchdog: da9063: Add hard dependency on I2C
watchdog: Add Realtek Otto watchdog timer
dt-bindings: watchdog: Realtek Otto WDT binding
watchdog: s3c2410: Add Exynos850 support
watchdog: da9063: use atomic safe i2c transfer in reset handler
watchdog: davinci: Use div64_ul instead of do_div
watchdog: Remove BCM63XX_WDT
MIPS: BCM63XX: Provide platform data to watchdog device
watchdog: bcm7038_wdt: Add platform device id for bcm63xx-wdt
watchdog: Allow building BCM7038_WDT for BCM63XX
watchdog: bcm7038_wdt: Support platform data configuration
...
Check if the WDT was running at boot and set the running
flag if it was. This prevents the system from getting
rebooted if the userland daemon doesn't take over soon enough
or there isn't a userland daemon at all.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211228073427.2443174-1-daniel@0x0f.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add support for the watchdog timer found in Apple SoCs. This driver is
also required to reboot these machines.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Tested-by: Janne Grunau <j@jannau.net>
Reviewed-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211211123633.4392-2-sven@svenpeter.dev
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
"watchdog_src" clock is optional and may not be present for some SoCs
supported by this driver. Nevertheless, in case the clock is provided
but some error happens during its getting, that error should be handled
properly. Use devm_clk_get_optional() API for that. Also report possible
errors using dev_err_probe() to handle properly -EPROBE_DEFER error (if
clock provider is not ready by the time WDT probe function is executed).
Fixes: e249d01b5e ("watchdog: s3c2410: Support separate source clock")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211212170247.30646-1-semen.protsenko@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
