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path: root/drivers/watchdog
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2019-05-05watchdog: max77620_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Replace stop on remove with call to watchdog_stop_on_unregister() - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: max63xx_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: lpc18xx_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Cc: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: kempld_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: intel-mid_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: imgpdc_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: iTCO_wdt: Various improvementsGuenter Roeck
Various coccinelle driven transformations as detailed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Use watchdog_stop_on_unregister to stop the watchdog on remove - Drop assignments to otherwise unused variables - Drop empty remove function Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: gpio_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: ftwdt010_wdt: Use 'dev' consistentlyGuenter Roeck
Use local variable 'dev' consistently. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: ep93xx_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: davinci_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop unnecessary braces around conditional return statements - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: da9063_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Support Opensource <support.opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: da9062_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. Also replace 'ret = func(); return ret;' with 'return func();'. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Support Opensource <support.opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: da9055_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Support Opensource <support.opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: da9052_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Support Opensource <support.opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: cadence_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Replace 'goto l; ... l: return e;' with 'return e;' - Replace 'val = e; return val;' with 'return e;' - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: bcm_kona_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: bcm7038_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: bcm2835_wdt: drop platform_set_drvdataGuenter Roeck
There is no call to platform_get_drvdata() in the driver, so platform_set_drvdata() is unnecessary and can be dropped. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: atlas7_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop unnecessary braces around conditional return statements - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Replace 'of_clk_get(np, 0)' with 'devm_clk_get(dev, NULL)' - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: aspeed_wdt: Use 'dev' instead of dereferencing it repeatedlyGuenter Roeck
Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches Cc: Joel Stanley <joel@jms.id.au> Cc: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: asm9260_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Replace 'goto l; ... l: return e;' with 'return e;' - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: armada_37xx_wdt: Convert to use device managed functions and other ↵Guenter Roeck
improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop unnecessary braces around conditional return statements - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: imx2_wdt: Fix set_timeout for big timeout valuesGeorg Hofmann
The documentated behavior is: if max_hw_heartbeat_ms is implemented, the minimum of the set_timeout argument and max_hw_heartbeat_ms should be used. This patch implements this behavior. Previously only the first 7bits were used and the input argument was returned. Signed-off-by: Georg Hofmann <georg@hofmannsweb.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: machzwd : fix warning Using plain integer as NULL pointerHariprasad Kelam
Changes passing function argument 0 to NULL to avoid below sparse warning CHECK drivers/watchdog//machzwd.c drivers/watchdog//machzwd.c:321:25: warning: Using plain integer as NULL pointer Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: rtd119x_wdt: Fix remove functionGuenter Roeck
The driver registers the watchdog with devm_watchdog_register_device() but still calls watchdog_unregister_device() on remove. Since clocks have to be stopped when removing the driver, after the watchdog device has been unregistered, we can not drop the call to watchdog_unregister_device(). Use watchdog_register_device() to register the watchdog. Fixes: 2bdf6acbfead7 ("watchdog: Add Realtek RTD1295") Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: sb_wdog: Make sbwdog_set and sbwdog_pet staticYueHaibing
Fix sparse warning: drivers/watchdog/sb_wdog.c:70:6: warning: symbol 'sbwdog_set' was not declared. Should it be static? drivers/watchdog/sb_wdog.c:84:6: warning: symbol 'sbwdog_pet' was not declared. Should it be static? Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Mukesh Ojha <mojha@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: alim7101: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/alim7101_wdt.c: In function ‘fop_ioctl’: drivers/watchdog/alim7101_wdt.c:279:3: warning: this statement may fall through [-Wimplicit-fallthrough=] wdt_keepalive(); ^~~~~~~~~~~~~~~ drivers/watchdog/alim7101_wdt.c:282:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Notice that, in this particular case, the /* Fall through */ comment is placed at the very bottom of the case statement, which is what GCC is expecting to find. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: Convert to use devm_platform_ioremap_resourceGuenter Roeck
Use devm_platform_ioremap_resource to reduce source code size, improve readability, and reduce the likelyhood of bugs. The conversion was done automatically with coccinelle using the following semantic patch. @r@ identifier res, pdev; expression a; expression index; expression e; @@ <+... - res = platform_get_resource(pdev, IORESOURCE_MEM, index); - a = devm_ioremap_resource(e, res); + a = devm_platform_ioremap_resource(pdev, index); ...+> @depends on r@ identifier r.res; @@ - struct resource *res; ... when != res @@ identifier res, pdev; expression index; expression a; @@ - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, index); - a = devm_ioremap_resource(&pdev->dev, res); + a = devm_platform_ioremap_resource(pdev, index); Cc: Joel Stanley <joel@jms.id.au> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Avi Fishman <avifishman70@gmail.com> Cc: Nancy Yuen <yuenn@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Barry Song <baohua@kernel.org> Cc: Orson Zhai <orsonzhai@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Marc Gonzalez <marc.w.gonzalez@free.fr> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Michal Simek <michal.simek@xilinx.com> (cadence/xilinx wdts) Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: imx2_wdt: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: imx_sc: Add i.MX system controller watchdog supportAnson Huang
i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller inside, the system controller is in charge of controlling power, clock and watchdog etc.. This patch adds i.MX system controller watchdog driver support, watchdog operation needs to be done in secure EL3 mode via ARM-Trusted-Firmware, using SMC call, CPU will trap into ARM-Trusted-Firmware and then it will request system controller to do watchdog operation via IPC. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: bd70528: Initial support for ROHM BD70528 watchdog blockMatti Vaittinen
Initial support for watchdog block included in ROHM BD70528 power management IC. Configurations for low power states are still to be checked. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: f71808e_wdt: fix F81866 bit operationJi-Ze Hong (Peter Hong)
Fix error bit operation in watchdog_start() Fixes: 14b24a88a3660 ("watchdog: f71808e_wdt: Add F81866 support") Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: f71808e_wdt: separate declaration and assignmentJi-Ze Hong (Peter Hong)
Separate declaration and assignment in watchdog_start() Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: i6300esb: stop printing kernel addressesMatteo Croce
Since commit ad67b74d2469d9b8 ("printk: hash addresses printed with %p"), i6300esb prints "____ptrval____" instead of actual addresses: i6300ESB timer 0000:00:03.0: initialized (0x(____ptrval____)). heartbeat=30 sec (nowayout=1) Instead of changing the print to "%px", and leaking kernel addresses, just remove the print completely, cfr. e.g. commit 071929dbdd865f77 ("arm64: Stop printing the virtual memory layout"). Signed-off-by: Matteo Croce <mcroce@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: fix compile time error of pretimeout governorsVladimir Zapolskiy
CONFIG_WATCHDOG_PRETIMEOUT_GOV build symbol adds watchdog_pretimeout.o object to watchdog.o, the latter is compiled only if CONFIG_WATCHDOG_CORE is selected, so it rightfully makes sense to add it as a dependency. The change fixes the next compilation errors, if CONFIG_WATCHDOG_CORE=n and CONFIG_WATCHDOG_PRETIMEOUT_GOV=y are selected: drivers/watchdog/pretimeout_noop.o: In function `watchdog_gov_noop_register': drivers/watchdog/pretimeout_noop.c:35: undefined reference to `watchdog_register_governor' drivers/watchdog/pretimeout_noop.o: In function `watchdog_gov_noop_unregister': drivers/watchdog/pretimeout_noop.c:40: undefined reference to `watchdog_unregister_governor' drivers/watchdog/pretimeout_panic.o: In function `watchdog_gov_panic_register': drivers/watchdog/pretimeout_panic.c:35: undefined reference to `watchdog_register_governor' drivers/watchdog/pretimeout_panic.o: In function `watchdog_gov_panic_unregister': drivers/watchdog/pretimeout_panic.c:40: undefined reference to `watchdog_unregister_governor' Reported-by: Kuo, Hsuan-Chi <hckuo2@illinois.edu> Fixes: ff84136cb6a4 ("watchdog: add watchdog pretimeout governor framework") Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-05-05watchdog: orion_wdt: remove orion_wdt_set_timeoutChris Packham
The watchdog core will do the same thing if no set_timeout is supplied so we can safely remove orion_wdt_set_timeout. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-04-30watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvctMarc Zyngier
Only arch_timer_read_counter will guarantee that workarounds are applied. So let's use this one instead of arch_counter_get_cntvct. Acked-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-23ARM: ixp4xx: Add device tree boot supportLinus Walleij
This adds a minimal support for booting IXP4xx systems from device tree. We have to add hacks to the QMGR, NPE and notably also ethernet and watchdog drivers so that they don't crash the platform: these drivers are unconditionally starting to grab regions of statically remapped IO space with no concern of the device model or other platforms. We will go in and properly fix these drivers as we go along but for now this hack gets us to a place where we can start working on proper device tree support for these platforms. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-03-11Merge tag 'linux-watchdog-5.1-rc1' of ↵Linus Torvalds
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - a new watchdog driver for the Mellanox systems - renesas-wdt: Document r8a77470 support - numerous 'Mark expected switch fall-throughs' - qcom: Add suspend/resume support - some small fixes and documentation updates * tag 'linux-watchdog-5.1-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: w83877f_wdt: Mark expected switch fall-through watchdog: sc520_wdt: Mark expected switch fall-through watchdog: sbc60xxwdt: Mark expected switch fall-through watchdog: smsc37b787_wdt: Mark expected switch fall-through watchdog: sc1200: Mark expected switch fall-through watchdog: pc87413: Mark expected switch fall-through Documentation/watchdog: Add documentation mlx-wdt driver watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems. platform_data/mlxreg: additions for Mellanox watchdog driver. watchdog: Update sysfs documentation. watchdog: dw: remove useless pr_fmt watchdog: pika_wdt: drop pointless static qualifier in pikawdt_init watchdog/hpwdt: Update Kconfig documentation dt-bindings: watchdog: renesas-wdt: Document r8a77470 support watchdog: qcom: Add suspend/resume support
2019-03-08Merge tag 'mfd-next-5.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add STMPE ADC Input driver - Add STMicroelectronics STPMIC1 Parent driver - Add STMicroelectronics STPMIC1 OnKey Misc driver - Add STMicroelectronics STPMIC1 Watchdog driver - Add Cirrus Logic Lochnagar Parent driver - Add TQ-Systems TQMX86 Parent driver New Device Support: - Add support for ADC to STMPE New (or moved) Functionality: - Move Lightbar functionality to its own driver; cros_ec_lightbar - Move VBC functionality to its own driver; cros_ec_vbc - Move VBC functionality to its own driver; cros_ec_vbc - Move DebugFS functionality to its own driver; cros_ec_debugfs - Move SYSFS functionality to its own driver; cros_ec_sysfs - Add support for input voltage options; tps65218 Fixes: - Use devm_* managed resources; cros_ec - Device Tree documentation; stmpe, aspeed-lpc, lochnagar - Trivial Clean-ups; stmpe - Rip out broken modular code; aat2870-core, adp5520, as3711, db8500-prcmu, htc-i2cpld, max8925-core, rc5t583, sta2x11-mfd, syscon, tps65090, tps65910, tps68470 tps80031, wm831x-spi, wm831x-i2c, wm831x-core, wm8350-i2c, wm8350-core, wm8400-core - Kconfig fixups; INTEL_SOC_PMIC - Improve error path; sm501, sec-core - Use struct_size() helper; sm501 - Constify; at91-usart - Use pointers instead of copying data; at91-usart - Deliver proper return value; cros_ec_dev - Trivial formatting/whitespace; sec-core" * tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits) mfd: mxs-lradc: Mark expected switch fall-through mfd: sec-core: Cleanup formatting to a consistent style mfd: tqmx86: IO controller with I2C, Wachdog and GPIO mfd: intel-lpss: Move linux/pm.h to the local header mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM mfd: tps68470: Drop unused MODULE_DEVICE_TABLE mfd: at91-usart: No need to copy mfd_cell in probe mfd: at91-usart: Constify at91_usart_spi_subdev and at91_usart_serial_subdev mfd: lochnagar: Add support for the Cirrus Logic Lochnagar mfd: lochnagar: Add initial binding documentation dt-bindings: mfd: aspeed-lpc: Make parameter optional mfd: sec-core: Return gracefully instead of BUG() if device cannot match mfd: sm501: Use struct_size() in devm_kzalloc() mfd: sm501: Fix potential NULL pointer dereference mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies mfd: tps65218.c: Add input voltage options mfd: wm8400-core: Make it explicitly non-modular mfd: wm8350-core: Drop unused module infrastructure from non-modular code mfd: wm8350-i2c: Make it explicitly non-modular mfd: wm831x-core: Drop unused module infrastructure from non-modular code ...
2019-03-02watchdog: w83877f_wdt: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/w83877f_wdt.c: In function ‘fop_ioctl’: drivers/watchdog/w83877f_wdt.c:294:3: warning: this statement may fall through [-Wimplicit-fallthrough=] wdt_keepalive(); ^~~~~~~~~~~~~~~ drivers/watchdog/w83877f_wdt.c:297:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: sc520_wdt: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/sc520_wdt.c: In function ‘fop_ioctl’: drivers/watchdog/sc520_wdt.c:326:3: warning: this statement may fall through [-Wimplicit-fallthrough=] wdt_keepalive(); ^~~~~~~~~~~~~~~ drivers/watchdog/sc520_wdt.c:329:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: sbc60xxwdt: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/sbc60xxwdt.c: In function ‘fop_ioctl’: drivers/watchdog/sbc60xxwdt.c:272:3: warning: this statement may fall through [-Wimplicit-fallthrough=] wdt_keepalive(); ^~~~~~~~~~~~~~~ drivers/watchdog/sbc60xxwdt.c:275:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: smsc37b787_wdt: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/smsc37b787_wdt.c: In function ‘wb_smsc_wdt_ioctl’: drivers/watchdog/smsc37b787_wdt.c:480:3: warning: this statement may fall through [-Wimplicit-fallthrough=] wb_smsc_wdt_set_timeout(timeout); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/watchdog/smsc37b787_wdt.c:482:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: sc1200: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/sc1200wdt.c: In function ‘sc1200wdt_ioctl’: drivers/watchdog/sc1200wdt.c:241:3: warning: this statement may fall through [-Wimplicit-fallthrough=] sc1200wdt_write_data(WDTO, timeout); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/watchdog/sc1200wdt.c:244:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: pc87413: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/watchdog/pc87413_wdt.c: In function ‘pc87413_ioctl’: drivers/watchdog/pc87413_wdt.c:439:3: warning: this statement may fall through [-Wimplicit-fallthrough=] pc87413_refresh(); ^~~~~~~~~~~~~~~~~ drivers/watchdog/pc87413_wdt.c:441:2: note: here case WDIOC_GETTIMEOUT: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems.Michael Shych
Introduce watchdog driver for a various range of Mellanox Ethernet and Infiniband switch systems. Watchdog driver for Mellanox watchdog devices, implemented in programmable logic device. Main and auxiliary watchdog devices can exist on the same system. There are several actions that can be defined in the watchdog: system reset, start fans on full speed and increase a counter. The last 2 actions are performed without a system reset. Actions without reset are provided for auxiliary watchdog devices, which is optional. Access to HW registers is performed through generic regmap interface. There are 2 types of HW watchdog implementations. Type 1: actual HW timeout can be defined as power of 2 msec. e.g. timeout 20 sec will be rounded up to 32768 msec.; maximum timeout period is 32 sec (32768 msec.); get time-left isn't supported Type 2: actual HW timeout is defined in sec. and it's the same as user-defined timeout; maximum timeout is 255 sec; get time-left is supported; Watchdog driver is probed from the common mlx_platform driver. Signed-off-by: Michael Shych <michaelsh@mellanox.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: dw: remove useless pr_fmtJisheng Zhang
When switch to watchdog infrastructure, pr_* usage is removed, so there's no any users of the pr_fmt, remove it. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-03-02watchdog: pika_wdt: drop pointless static qualifier in pikawdt_initYueHaibing
There is no need to have the 'post1' variable static since new value always be assigned before use it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>