Commit Graph

2568 Commits

Author SHA1 Message Date
Paul Cercueil
d36eda79c6 watchdog: twl4030: Remove #ifdef guards for PM related functions
Use the pm_ptr() macro to handle the .suspend/.resume callbacks.

This macro allows the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards. Not using #ifdef guards means that the code is
always compiled independently of any Kconfig option, and thanks to that
bugs and regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221020185047.1001522-3-paul@crapouillou.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-11-19 15:30:38 +01:00
Paul Cercueil
b49e2a3cfb watchdog: at91rm9200: Remove #ifdef guards for PM related functions
Use the pm_ptr() macro to handle the .suspend/.resume callbacks.

This macro allows the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards. Not using #ifdef guards means that the code is
always compiled independently of any Kconfig option, and thanks to that
bugs and regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221020185047.1001522-2-paul@crapouillou.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-11-19 15:30:38 +01:00
Thomas Kastner
08435c2aab watchdog: Add Advantech EC watchdog driver
This patch adds the 'advantech_ec_wdt' kernel module which provides
WDT support for Advantech platforms with ITE based Embedded Controller.

Signed-off-by: Thomas Kastner <thomas.kastner@advantech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Thomas Kastner <thomas.kastner@advantech.com>
Link: https://lore.kernel.org/r/Y0+pl/26e3pcEUPk@EIS-S230
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-11-19 15:30:37 +01:00
Runyang Chen
bc7313652a watchdog: mediatek: mt8188: add wdt support
Support MT8188 watchdog device.

Signed-off-by: Runyang Chen <runyang.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20221026063327.20037-4-Runyang.Chen@mediatek.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-11-19 15:30:35 +01:00
AngeloGioacchino Del Regno
28927f6c48 watchdog: mtk_wdt: Add support for MT6795 Helio X10 watchdog and toprgu
Add support for the toprgu reset controller and watchdog for the
MediaTek MT6795 SoC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Co-developed-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221005113517.70628-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-11-19 15:30:33 +01:00
Linus Torvalds
d79dcde0bc linux-watchdog 6.1-rc4 tag
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Merge tag 'linux-watchdog-6.1-rc4' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:

 - fix use after free in exar driver

 - spelling fix in comment

* tag 'linux-watchdog-6.1-rc4' of git://www.linux-watchdog.org/linux-watchdog:
  drivers: watchdog: exar_wdt.c fix use after free
  watchdog: sp805_wdt: fix spelling typo in comment
2022-11-01 12:21:53 -07:00
Linus Torvalds
4f1e0c18bc linux-watchdog 6.1-rc2 tag
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Merge tag 'linux-watchdog-6.1-rc2' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Add tracing events for the most common watchdog events

* tag 'linux-watchdog-6.1-rc2' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: Add tracing events for the most usual watchdog events
2022-10-21 12:25:39 -07:00
Manank Patel
82ebbe65d7 drivers: watchdog: exar_wdt.c fix use after free
fix use after free by storing the result of PTR_ERR(n->pdev)
to a local variable before returning.

Signed-off-by: Manank Patel <pmanank200502@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221013095258.1424967-1-pmanank200502@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-19 19:49:47 +02:00
Jiangshan Yi
097a4a1612 watchdog: sp805_wdt: fix spelling typo in comment
Fix spelling typo in comment.

Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Jiangshan Yi <yijiangshan@kylinos.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221009083944.2988237-1-13667453960@163.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-19 19:49:46 +02:00
Linus Torvalds
3d33e6dd5c linux-watchdog 6.1-rc1 tag
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Merge tag 'linux-watchdog-6.1-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - new driver for Exar/MaxLinear XR28V38x

 - support for exynosautov9 SoC

 - support for Renesas R-Car V5H (R8A779G0) and RZ/V2M (r9a09g011) SoC

 - support for imx93

 - several other fixes and improvements

* tag 'linux-watchdog-6.1-rc1' of git://www.linux-watchdog.org/linux-watchdog: (36 commits)
  watchdog: twl4030_wdt: add missing mod_devicetable.h include
  dt-bindings: watchdog: migrate mt7621 text bindings to YAML
  watchdog: sp5100_tco: Add "action" module parameter
  watchdog: imx93: add watchdog timer on imx93
  watchdog: imx7ulp_wdt: init wdog when it was active
  watchdog: imx7ulp_wdt: Handle wdog reconfigure failure
  watchdog: imx7ulp_wdt: Fix RCS timeout issue
  watchdog: imx7ulp_wdt: Check CMD32EN in wdog init
  watchdog: imx7ulp: Add explict memory barrier for unlock sequence
  watchdog: imx7ulp: Move suspend/resume to noirq phase
  watchdog: rti-wdt:using the pm_runtime_resume_and_get to simplify the code
  dt-bindings: watchdog: rockchip: add rockchip,rk3128-wdt
  watchdog: s3c2410_wdt: support exynosautov9 watchdog
  dt-bindings: watchdog: add exynosautov9 compatible
  watchdog: npcm: Enable clock if provided
  watchdog: meson: keep running if already active
  watchdog: dt-bindings: atmel,at91sam9-wdt: convert to json-schema
  watchdog: armada_37xx_wdt: Fix .set_timeout callback
  watchdog: sa1100: make variable sa1100dog_driver static
  watchdog: w83977f_wdt: Fix comment typo
  ...
2022-10-13 10:31:13 -07:00
Uwe Kleine-König
e25b091bed watchdog: Add tracing events for the most usual watchdog events
To simplify debugging which process touches a watchdog and when, add
tracing events for .start(), .set_timeout(), .ping() and .stop().

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221008174602.3972859-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-12 09:47:02 +02:00
Linus Torvalds
4899a36f91 powerpc updates for 6.1
- Remove our now never-true definitions for pgd_huge() and p4d_leaf().
 
  - Add pte_needs_flush() and huge_pmd_needs_flush() for 64-bit.
 
  - Add support for syscall wrappers.
 
  - Add support for KFENCE on 64-bit.
 
  - Update 64-bit HV KVM to use the new guest state entry/exit accounting API.
 
  - Support execute-only memory when using the Radix MMU (P9 or later).
 
  - Implement CONFIG_PARAVIRT_TIME_ACCOUNTING for pseries guests.
 
  - Updates to our linker script to move more data into read-only sections.
 
  - Allow the VDSO to be randomised on 32-bit.
 
  - Many other small features and fixes.
 
 Thanks to: Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Christophe
 Leroy, David Hildenbrand, Disha Goel, Fabiano Rosas, Gaosheng Cui, Gustavo A. R. Silva,
 Haren Myneni, Hari Bathini, Jilin Yuan, Joel Stanley, Kajol Jain, Kees Cook, Krzysztof
 Kozlowski, Laurent Dufour, Liang He, Li Huafei, Lukas Bulwahn, Madhavan Srinivasan, Nathan
 Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Rohan McLure,
 Russell Currey, Sachin Sant, Segher Boessenkool, Shrikanth Hegde, Tyrel Datwyler, Wolfram
 Sang, ye xingchen, Zheng Yongjun.
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Merge tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Remove our now never-true definitions for pgd_huge() and p4d_leaf().

 - Add pte_needs_flush() and huge_pmd_needs_flush() for 64-bit.

 - Add support for syscall wrappers.

 - Add support for KFENCE on 64-bit.

 - Update 64-bit HV KVM to use the new guest state entry/exit accounting
   API.

 - Support execute-only memory when using the Radix MMU (P9 or later).

 - Implement CONFIG_PARAVIRT_TIME_ACCOUNTING for pseries guests.

 - Updates to our linker script to move more data into read-only
   sections.

 - Allow the VDSO to be randomised on 32-bit.

 - Many other small features and fixes.

Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Christophe Leroy, David Hildenbrand, Disha Goel, Fabiano Rosas,
Gaosheng Cui, Gustavo A. R. Silva, Haren Myneni, Hari Bathini, Jilin
Yuan, Joel Stanley, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent
Dufour, Liang He, Li Huafei, Lukas Bulwahn, Madhavan Srinivasan, Nathan
Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Pali
Rohár, Rohan McLure, Russell Currey, Sachin Sant, Segher Boessenkool,
Shrikanth Hegde, Tyrel Datwyler, Wolfram Sang, ye xingchen, and Zheng
Yongjun.

* tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (214 commits)
  KVM: PPC: Book3S HV: Fix stack frame regs marker
  powerpc: Don't add __powerpc_ prefix to syscall entry points
  powerpc/64s/interrupt: Fix stack frame regs marker
  powerpc/64: Fix msr_check_and_set/clear MSR[EE] race
  powerpc/64s/interrupt: Change must-hard-mask interrupt check from BUG to WARN
  powerpc/pseries: Add firmware details to the hardware description
  powerpc/powernv: Add opal details to the hardware description
  powerpc: Add device-tree model to the hardware description
  powerpc/64: Add logical PVR to the hardware description
  powerpc: Add PVR & CPU name to hardware description
  powerpc: Add hardware description string
  powerpc/configs: Enable PPC_UV in powernv_defconfig
  powerpc/configs: Update config files for removed/renamed symbols
  powerpc/mm: Fix UBSAN warning reported on hugetlb
  powerpc/mm: Always update max/min_low_pfn in mem_topology_setup()
  powerpc/mm/book3s/hash: Rename flush_tlb_pmd_range
  powerpc: Drops STABS_DEBUG from linker scripts
  powerpc/64s: Remove lost/old comment
  powerpc/64s: Remove old STAB comment
  powerpc: remove orphan systbl_chk.sh
  ...
2022-10-09 14:05:15 -07:00
Dmitry Torokhov
099d387ebb watchdog: twl4030_wdt: add missing mod_devicetable.h include
The driver is using of_device_id and therefore needs to include
mod_devicetable.h header. We used to get this definition indirectly via
inclusion of matrix_keypad.h from twl.h, but we are cleaning up
matrix_keypad.h from unnecessary includes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220927154611.3330871-1-dmitry.torokhov@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-07 11:03:25 +02:00
Linus Torvalds
ff6862c23d ARM: driver updates for 6.1
The drivers branch for 6.1 is a bit larger than for most releases.  Most
 of the changes come from SoC maintainers for the drivers/soc subsystem:
 
  - A new driver for error handling on the NVIDIA Tegra
    'control backbone' bus.
 
  - A new driver for Qualcomm LLCC/DDR bandwidth measurement
 
  - New Rockchip rv1126 and rk3588 power domain drivers
 
  - DT binding updates for memory controllers, older Rockchip
    SoCs, various Mediatek devices, Qualcomm SCM firmware
 
  - Minor updates to Hisilicon LPC bus, the Allwinner SRAM
    driver, the Apple rtkit firmware driver, Tegra firmware
 
  - Minor updates for SoC drivers (Samsung, Mediatek, Renesas,
    Tegra, Qualcomm, Broadcom, NXP, ...)
 
 There are also some separate subsystem with downstream maintainers that
 merge updates this way:
 
  - Various updates and new drivers in the memory controller
    subsystem for Mediatek and Broadcom SoCs
 
  - Small set of changes in preparation to add support for FF-A
    v1.1 specification later, in the Arm FF-A firmware subsystem
 
  - debugfs support in the PSCI firmware subsystem
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Merge tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM driver updates from Arnd Bergmann:
 "The drivers branch for 6.1 is a bit larger than for most releases.

  Most of the changes come from SoC maintainers for the drivers/soc
  subsystem:

   - A new driver for error handling on the NVIDIA Tegra 'control
     backbone' bus.

   - A new driver for Qualcomm LLCC/DDR bandwidth measurement

   - New Rockchip rv1126 and rk3588 power domain drivers

   - DT binding updates for memory controllers, older Rockchip SoCs,
     various Mediatek devices, Qualcomm SCM firmware

   - Minor updates to Hisilicon LPC bus, the Allwinner SRAM driver, the
     Apple rtkit firmware driver, Tegra firmware

   - Minor updates for SoC drivers (Samsung, Mediatek, Renesas, Tegra,
     Qualcomm, Broadcom, NXP, ...)

  There are also some separate subsystem with downstream maintainers
  that merge updates this way:

   - Various updates and new drivers in the memory controller subsystem
     for Mediatek and Broadcom SoCs

   - Small set of changes in preparation to add support for FF-A v1.1
     specification later, in the Arm FF-A firmware subsystem

   - debugfs support in the PSCI firmware subsystem"

* tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (149 commits)
  ARM: remove check for CONFIG_DEBUG_LL_SER3
  firmware/psci: Add debugfs support to ease debugging
  firmware/psci: Print a warning if PSCI doesn't accept PC mode
  dt-bindings: memory: snps,dw-umctl2-ddrc: Extend schema with IRQs/resets/clocks props
  dt-bindings: memory: snps,dw-umctl2-ddrc: Replace opencoded numbers with macros
  dt-bindings: memory: snps,dw-umctl2-ddrc: Use more descriptive device name
  dt-bindings: memory: synopsys,ddrc-ecc: Detach Zynq DDRC controller support
  soc: sunxi: sram: Add support for the D1 system control
  soc: sunxi: sram: Export the LDO control register
  soc: sunxi: sram: Save a pointer to the OF match data
  soc: sunxi: sram: Return void from the release function
  soc: apple: rtkit: Add apple_rtkit_poll
  soc: imx: add i.MX93 media blk ctrl driver
  soc: imx: add i.MX93 SRC power domain driver
  soc: imx: imx8m-blk-ctrl: Use genpd_xlate_onecell
  soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets
  soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl
  soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR
  soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
  soc: imx: add icc paths for i.MX8MP media blk ctrl
  ...
2022-10-06 11:04:57 -07:00
Vladimir Panteleev
081574f76d watchdog: sp5100_tco: Add "action" module parameter
Allow configuring the "action" bit, as documented in [1].

Previously, the only action supported by this module was to reset the
system (0).  It can now be configured to power off (1) instead.

[1]: https://www.amd.com/system/files/TechDocs/44413.pdf

Signed-off-by: Vladimir Panteleev <git@vladimir.panteleev.md>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220920092721.7686-1-git@vladimir.panteleev.md
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:48 +02:00
Alice Guo
8ed2dc4855 watchdog: imx93: add watchdog timer on imx93
The WDOG clocks are sourced from lpo_clk, and lpo_clk is the fixed
32KHz. TOVAL contains the 16-bit value used to set the timeout period of
the watchdog. When the timeout period exceeds 2 seconds, the value
written to the TOVAL register is larger than 16-bit can represent.
Enabling watchdog prescaler can solve this problem.

Two points need to be aware of:
1. watchdog prescaler enables a fixed 256 pre-scaling of watchdog
counter reference clock
2. reconfiguration takes about 55ms on imx93

Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-8-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:47 +02:00
Jason Liu
cef6bc98d5 watchdog: imx7ulp_wdt: init wdog when it was active
Paired with suspend, we can only init wdog again when it was active
and ping it once to avoid the watchdog timeout after it resumed.

Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Tested-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-7-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:46 +02:00
Ye Li
c32b53f965 watchdog: imx7ulp_wdt: Handle wdog reconfigure failure
Current driver may meet reconfigure failure caused by below reasons:

1. The wdog on iMX7ULP has different behavior after RCS valid. It needs
   to wait more than 2.5 wdog clock for clock sync before next
   reconfiguration, while imx8ulp wdog does not need such delay.

2. After unlock, there is 128 bus clock window opened for reconfiguration,
   but on iMX8ULP, the HW can't guarantee the latency. So it is possible
   the window is closed before the writing arrives to wdog.

3. If the PRES is enabled, the RCS valid time becomes x256 to the time
   of PRES disabled. It is about 1715ms on iMX8ULP. So We have to increase
   the RCS timeout and can't wait it in IRQ disabled.

The patch updates the driver to handle failures

1. Using different wait for unlock and RCS. Unlock valid time is very short
   and only related to bus clock. It must be in IRQ disabled to avoid
   being interrupted in 128 clock window. But for RCS time, it is longer
   and ok for IRQ enabled.

2. Add retry for any reconfigure failure with default 5 times.

3. Add "fsl,imx8ulp-wdt" compatile string for iMX8ULP and afterwards
   platform which don't need more 2.5 wdog clock after RCS valid.
   For imx7ulp, add post delay of 2.5 clock after RCS valid.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-6-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:46 +02:00
Ye Li
52c4d05113 watchdog: imx7ulp_wdt: Fix RCS timeout issue
According to measure on i.MX7ULP and i.MX8ULP, the RCS done needs
about 3400us and 6700us respectively. So current 20us timeout is
not enough. When reconfiguring is on-going, unlock and configure CS
will lead to unknown result.

Increase the wait timeout value to 10ms and check the return value
of RCS wait to fix the issue

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-5-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:45 +02:00
Ye Li
e809daec17 watchdog: imx7ulp_wdt: Check CMD32EN in wdog init
When bootloader has enabled the CMD32EN bit, switch to use 32bits
unlock command to unlock the CS register. Using 32bits command will
help on avoiding 16 bus cycle window violation for two 16 bits
commands.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-4-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:45 +02:00
Jacky Bai
6371593fba watchdog: imx7ulp: Add explict memory barrier for unlock sequence
When reconfiguring the WDOG Timer of i.MX7ULP, there is a certain
probability causes it to reset. The reason is that the CMD32EN of the
WDOG Timer of i.MX7ULP is disabled in bootloader. The unlock sequence
are two 16-bit writes to the CNT register within 16 bus clocks. Adding
mb() is to guarantee that two 16-bit writes are finished within 16 bus
clocks. Memory barriers cannot be added between these two 16-bit writes
so that writel_relaxed is used.

Suggested-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-3-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:44 +02:00
Anson Huang
f182683333 watchdog: imx7ulp: Move suspend/resume to noirq phase
The i.MX7ULP's watchdog is enabled by default when out of reset, so the
resume callback which is to disable watchdog should be called earlier
to avoid unexpected timeout, move suspend/resume callback to noirq phase.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Tested-by: Peter Chen <peter.chen@nxp.com>
Tested-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220825083256.14565-2-alice.guo@oss.nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:44 +02:00
ye xingchen
a1f136fd87 watchdog: rti-wdt:using the pm_runtime_resume_and_get to simplify the code
Using pm_runtime_resume_and_get() to instade of  pm_runtime_get_sync
and pm_runtime_put_noidle.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802074643.1648660-1-ye.xingchen@zte.com.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:43 +02:00
Chanho Park
0c91aa185a watchdog: s3c2410_wdt: support exynosautov9 watchdog
Like exynos850, exynosautov9 SoC also has two cpu watchdogs.
Unfortunately, some configurations are slightly different so we need to
add samsung,exynosautov9-wdt and separate drv data for those watchdogs.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220520121750.71473-3-chanho61.park@samsung.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:42 +02:00
Jonathan Neuschäfer
af084fdccf watchdog: npcm: Enable clock if provided
On the Nuvoton WPCM450 SoC, with its upcoming clock driver, peripheral
clocks are individually gated and ungated. Therefore, the watchdog
driver must be able to ungate the watchdog clock.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220610072141.347795-3-j.neuschaefer@gmx.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:41 +02:00
Philippe Boos
6adbfbab0f watchdog: meson: keep running if already active
If the watchdog is already running (e.g.: started by bootloader) then
the kernel driver should keep the watchdog active but the amlogic driver
turns it off.

Let the driver fix the clock rate if already active because we do not
know the previous timebase value. To avoid unintentional resetting we
temporarily set it to its maximum value.

Then keep the enable bit if is was previously active.

Signed-off-by: Philippe Boos <pboos@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220801092150.4449-1-pboos@baylibre.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:41 +02:00
Pali Rohár
8007935305 watchdog: armada_37xx_wdt: Fix .set_timeout callback
ioctl(WDIOC_SETTIMEOUT) calls .set_timeout and .ping callbacks and it is
expected that it changes current watchdog timeout.

armada_37xx_wdt's .ping callback just reping counter 0 and does not touch
counter 1 used for timeout. So it is needed to set counter 1 to the new
value in .set_timeout callback to ensure ioctl(WDIOC_SETTIMEOUT)
functionality. Fix it.

Fixes: 54e3d9b518 ("watchdog: Add support for Armada 37xx CPU watchdog")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20220726085612.10672-1-pali@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:40 +02:00
sunliming
74b31987e2 watchdog: sa1100: make variable sa1100dog_driver static
This symbol is not used outside of sa1100_wdt.c, so marks it static.

Fixes the following warning:

>> drivers/watchdog/sa1100_wdt.c:241:24: sparse: sparse: symbol 'sa1100dog_driver'
was not declared. Should it be static?

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802020819.1226454-1-sunliming@kylinos.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:39 +02:00
Jason Wang
b26b96085d watchdog: w83977f_wdt: Fix comment typo
The double `we' is duplicated in the comment, remove one.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220802201109.6843-1-wangborong@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:39 +02:00
shaomin Deng
08a884cf03 watchdog: eurotechwdt: Remove redundant word in comments
There is a rebundant word "we" in comments, so remove it.

Signed-off-by: shaomin Deng <dengshaomin@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220808153956.8374-1-dengshaomin@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:38 +02:00
Bo Liu
0e01297212 watchdog: Check dev_set_name() return value
It's possible that dev_set_name() returns -ENOMEM, catch and handle this.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220920020312.2383-1-liubo03@inspur.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:38 +02:00
Phil Edworthy
ec122fd94e watchdog: rzg2l_wdt: Add rzv2m support
The WDT on RZ/V2M devices is basically the same as RZ/G2L, but without
the parity error registers. This means the driver has to reset the
hardware plus set the minimum timeout in order to do a restart and has
a single interrupt.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-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/20220823093233.8577-3-phil.edworthy@renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:37 +02:00
Dan Carpenter
695bfff553 watchdog: ftwdt010_wdt: fix test for platform_get_irq() failure
This code assumes that platform_get_irq() function returns zero on
failure.  In fact, platform_get_irq() never returns zero.  It returns
negative error codes or positive non-zero values on success.

Fixes: eca10ae600 ("watchdog: add driver for Cortina Gemini watchdog")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/YvTgRk/ABp62/hNA@kili
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:36 +02:00
David Müller
81126222bd watchdog: Exar/MaxLinear XR28V38x driver
Simple driver for the watchdog present in some Exar/MaxLinear UART chips.
Please see https://www.maxlinear.com/product/interface/uarts/lpc-uarts/xr28v384
for more info.

Signed-off-by: David Müller <d.mueller@elsoft.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220914094605.93377-1-d.mueller@elsoft.ch
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:35 +02:00
Sergei Antonov
64ee937509 watchdog: ftwdt010_wdt: implement _restart() function
Implement ftwdt010_wdt_restart(). It enables watchdog with timeout = 0
and disabled IRQ. Since it needs code similar to ftwdt010_wdt_start(),
add a new function ftwdt010_enable() and move common code there.

Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220829090436.452742-1-saproj@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:35 +02:00
Henning Schild
5a9fbf8b80 watchdog: w83627hf_wdt: add bootstatus support
The status bit in the status and control register can tell us whether
the last reboot was caused by the watchdog. Make sure to take that into
the bootstatus before clearing it.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220824152448.7736-1-henning.schild@siemens.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:34 +02:00
Chin-Ting Kuo
19f04459f0 watchdog: aspeed_wdt: Reorder output signal register configuration
If the output driving type is push-pull mode, the output
polarity should be selected in advance. Otherwise, an unexpected
value will be output at the moment of changing to push-pull mode.
Thus, output polarity, WDT18[31], must be configured before
changing driving type, WDT18[30].

Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Bonnie Lo <Bonnie_Lo@wiwynn.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20220819094905.1962513-1-chin-ting_kuo@aspeedtech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:33 +02:00
Jerry Hoemann
891862d5ba watchdog/hpwdt: Enable HP_WATCHDOG for ARM64 systems.
Enable HP_WATCHDOG for ARM64 systems.
HPWDT_NMI_DECODING requires X86 as NMI handlers are X86 specific.

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220820202821.1263837-3-jerry.hoemann@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:32 +02:00
Jerry Hoemann
ed835d8171 watchdog/hpwdt: Include nmi.h only if CONFIG_HPWDT_NMI_DECODING
Fixes: d48b0e1737 ("x86, nmi, drivers: Fix nmi splitup build bug")

Arm64 does not support NMI and has no <asm/nmi.h>.

Include <asm/nmi.h> only if CONFIG_HPWDT_NMI_DECODING is defined to
avoid build failure on non-existent header file on Arm64.

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220820202821.1263837-2-jerry.hoemann@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:32 +02:00
Jean Delvare
926e099267 watchdog: wdat_wdt: Set the min and max timeout values properly
The wdat_wdt driver is misusing the min_hw_heartbeat_ms field. This
field should only be used when the hardware watchdog device should not
be pinged more frequently than a specific period. The ACPI WDAT
"Minimum Count" field, on the other hand, specifies the minimum
timeout value that can be set. This corresponds to the min_timeout
field in Linux's watchdog infrastructure.

Setting min_hw_heartbeat_ms instead can cause pings to the hardware
to be delayed when there is no reason for that, eventually leading to
unexpected firing of the watchdog timer (and thus unexpected reboot).

Since commit 6d72c7ac9f ("watchdog: wdat_wdt: Using the existing
function to check parameter timeout"), min_timeout is being set too,
but to the arbitrary value of 1 second, which doesn't make sense and
allows setting timeout values lower that the ACPI WDAT "Minimum
Count" field.

I'm also changing max_hw_heartbeat_ms to max_timeout for symmetry,
although the use of this one isn't fundamentally wrong, but there is
also no reason to enable the software-driven ping mechanism for the
wdat_wdt driver.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 058dfc7670 ("ACPI / watchdog: Add support for WDAT hardware watchdog")
Fixes: 6d72c7ac9f ("watchdog: wdat_wdt: Using the existing function to check parameter timeout")
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Liu Xinpeng <liuxp11@chinatelecom.cn>
Link: https://lore.kernel.org/r/20220823154713.023ee771@endymion.delvare
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:31 +02:00
Dmitry Torokhov
4f719022a7 watchdog: bd9576_wdt: switch to using devm_fwnode_gpiod_get()
I would like to stop exporting OF-specific devm_gpiod_get_from_of_node()
so that gpiolib can be cleaned a bit, so let's switch to the generic
fwnode property API.

While at it, switch the rest of the calls to read properties in
bd9576_wdt_probe() to the generic device property API as well.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220903-gpiod_get_from_of_node-remove-v1-10-b29adfb27a6c@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-10-02 12:55:30 +02:00
Christophe Leroy
ec65560ad8 watchdog: booke_wdt: Replace PPC_FSL_BOOK3E by PPC_E500
CONFIG_PPC_FSL_BOOK3E is redundant with CONFIG_PPC_E500.

Replace it so that CONFIG_PPC_FSL_BOOK3E can be removed later.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/01a9132d51d3d8d9c74576d3da4d9d1fa5a88bde.1663606876.git.christophe.leroy@csgroup.eu
2022-09-26 23:00:13 +10:00
Uwe Kleine-König
ed5c2f5fd1 i2c: Make remove callback return void
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00
William Zhang
7bb49d774f arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
Acked-by: Wolfram Sang <wsa@kernel.org> (for i2c)
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> (for reset)
Link: https://lore.kernel.org/r/20220803175455.47638-7-william.zhang@broadcom.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2022-08-15 09:55:34 -07:00
Linus Torvalds
e6cc0b56e2 linux-watchdog 5.20-rc1 tag
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Merge tag 'linux-watchdog-5.20-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - add RTL9310 support

 - sp805_wdt: add arm cmsdk apb wdt support

 - Remove #ifdef guards for PM related functions for several watchdog
   device drivers

 - pm8916_wdt reboot improvements

 - Several other fixes and improvements

* tag 'linux-watchdog-5.20-rc1' of git://www.linux-watchdog.org/linux-watchdog: (24 commits)
  watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe()
  watchdog: dw_wdt: Fix comment typo
  watchdog: Fix comment typo
  dt-bindings: watchdog: Add fsl,scu-wdt yaml file
  watchdog:Fix typo in comment
  watchdog: pm8916_wdt: Handle watchdog enabled by bootloader
  watchdog: pm8916_wdt: Report reboot reason
  watchdog: pm8916_wdt: Avoid read of write-only PET register
  watchdog: wdat_wdt: Remove #ifdef guards for PM related functions
  watchdog: tegra_wdt: Remove #ifdef guards for PM related functions
  watchdog: st_lpc_wdt: Remove #ifdef guards for PM related functions
  watchdog: sama5d4_wdt: Remove #ifdef guards for PM related functions
  watchdog: s3c2410_wdt: Remove #ifdef guards for PM related functions
  watchdog: mtk_wdt: Remove #ifdef guards for PM related functions
  watchdog: dw_wdt: Remove #ifdef guards for PM related functions
  watchdog: bcm7038_wdt: Remove #ifdef guards for PM related functions
  watchdog: realtek-otto: add RTL9310 support
  dt-bindings: watchdog: realtek,otto-wdt: add RTL9310
  watchdog: sp805_wdt: add arm cmsdk apb wdt support
  watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource
  ...
2022-08-08 15:04:04 -07:00
Linus Torvalds
cae4199f93 powerpc updates for 6.0
- Add support for syscall stack randomization.
 
  - Add support for atomic operations to the 32 & 64-bit BPF JIT.
 
  - Full support for KASAN on 64-bit Book3E.
 
  - Add a watchdog driver for the new PowerVM hypervisor watchdog.
 
  - Add a number of new selftests for the Power10 PMU support.
 
  - Add a driver for the PowerVM Platform KeyStore.
 
  - Increase the NMI watchdog timeout during live partition migration, to avoid timeouts
    due to increased memory access latency.
 
  - Add support for using the 'linux,pci-domain' device tree property for PCI domain
    assignment.
 
  - Many other small features and fixes.
 
 Thanks to: Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira Rajeev, Bagas
 Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Greg Kurz,
 Haowen Bai, Hari Bathini, Jason A. Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg
 Haefliger, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada,
 Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch, Naveen N. Rao, Nayna
 Jain, Nicholas Piggin, Ning Qiang, Pali Rohár, Petr Mladek, Rashmica Gupta, Sachin Sant,
 Scott Cheloha, Segher Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu
 Jianfeng, Zhouyi Zhou.
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Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add support for syscall stack randomization

 - Add support for atomic operations to the 32 & 64-bit BPF JIT

 - Full support for KASAN on 64-bit Book3E

 - Add a watchdog driver for the new PowerVM hypervisor watchdog

 - Add a number of new selftests for the Power10 PMU support

 - Add a driver for the PowerVM Platform KeyStore

 - Increase the NMI watchdog timeout during live partition migration, to
   avoid timeouts due to increased memory access latency

 - Add support for using the 'linux,pci-domain' device tree property for
   PCI domain assignment

 - Many other small features and fixes

Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira
Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas,
Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A.
Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol
Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada,
Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch,
Naveen N.  Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár,
Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher
Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu
Jianfeng, and Zhouyi Zhou.

* tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits)
  powerpc/64e: Fix kexec build error
  EDAC/ppc_4xx: Include required of_irq header directly
  powerpc/pci: Fix PHB numbering when using opal-phbid
  powerpc/64: Init jump labels before parse_early_param()
  selftests/powerpc: Avoid GCC 12 uninitialised variable warning
  powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
  powerpc/xive: Fix refcount leak in xive_get_max_prio
  powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
  powerpc/perf: Include caps feature for power10 DD1 version
  powerpc: add support for syscall stack randomization
  powerpc: Move system_call_exception() to syscall.c
  powerpc/powernv: rename remaining rng powernv_ functions to pnv_
  powerpc/powernv/kvm: Use darn for H_RANDOM on Power9
  powerpc/powernv: Avoid crashing if rng is NULL
  selftests/powerpc: Fix matrix multiply assist test
  powerpc/signal: Update comment for clarity
  powerpc: make facility_unavailable_exception 64s
  powerpc/platforms/83xx/suspend: Remove write-only global variable
  powerpc/platforms/83xx/suspend: Prevent unloading the driver
  powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration
  ...
2022-08-06 16:38:17 -07:00
Linus Torvalds
5f0848190c platform-drivers-x86 for v6.0-1
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
  ...
2022-08-04 18:19:14 -07:00
William Dean
2d27e52841 watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe()
The function devm_ioremap() in armada_37xx_wdt_probe() can fail, so
its return value should be checked.

Fixes: 54e3d9b518 ("watchdog: Add support for Armada 37xx CPU watchdog")
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
Reviewed-by: Marek Beh=C3=BAn <kabel@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220722030938.2925156-1-williamsukatube@163.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-07-23 14:26:42 +02:00
Jason Wang
30ebc985d1 watchdog: dw_wdt: Fix comment typo
The double `have' is duplicated in the comment, remove one.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220716041951.34714-1-wangborong@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-07-23 14:26:41 +02:00
Jason Wang
b79953090a watchdog: Fix comment typo
The double `and' is duplicated in the comment, remove one.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220716041856.34449-1-wangborong@cdjrlc.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2022-07-23 14:26:41 +02:00