From: Evan Benn <evanbenn@chromium.org> To: LKML <linux-kernel@vger.kernel.org> Cc: jwerner@chromium.org, "Evan Benn" <evanbenn@chromium.org>, "Bjorn Andersson" <bjorn.andersson@linaro.org>, "Guenter Roeck" <linux@roeck-us.net>, "Mauro Carvalho Chehab" <mchehab+samsung@kernel.org>, "Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>, "Catalin Marinas" <catalin.marinas@arm.com>, "Olof Johansson" <olof@lixom.net>, "Leonard Crestez" <leonard.crestez@nxp.com>, "Jonathan Cameron" <Jonathan.Cameron@huawei.com>, "Dinh Nguyen" <dinguyen@kernel.org>, linux-arm-kernel@lists.infradead.org, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Will Deacon" <will@kernel.org>, linux-watchdog@vger.kernel.org, "Rob Herring" <robh@kernel.org>, "Wim Van Sebroeck" <wim@linux-watchdog.org>, "Clément Péron" <peron.clem@gmail.com>, "Shawn Guo" <shawnguo@kernel.org>, "David S. Miller" <davem@davemloft.net>, "Anson Huang" <Anson.Huang@nxp.com> Subject: [PATCH 2/2] watchdog: Add new arm_smc_wdt watchdog driver Date: Fri, 14 Feb 2020 17:26:37 +1100 [thread overview] Message-ID: <20200214172512.2.I7c8247c29891a538f258cb47828d58acf22c95a2@changeid> (raw) In-Reply-To: <20200214062637.216209-1-evanbenn@chromium.org> From: Julius Werner <jwerner@chromium.org> This patch adds a stub watchdog driver that can be used on ARM systems with a Secure Monitor firmware to forward watchdog operations to firmware via a Secure Monitor Call. This may be useful for platforms using TrustZone that want the Secure Monitor firmware to have the final control over the watchdog. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Evan Benn <evanbenn@chromium.org> --- MAINTAINERS | 1 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 12 +++ drivers/watchdog/Makefile | 1 + drivers/watchdog/arm_smc_wdt.c | 191 +++++++++++++++++++++++++++++++++ 5 files changed, 206 insertions(+) create mode 100644 drivers/watchdog/arm_smc_wdt.c diff --git a/MAINTAINERS b/MAINTAINERS index 5c45536e1177..71df3c110fdb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1426,6 +1426,7 @@ M: Julius Werner <jwerner@chromium.org> R: Evan Benn <evanbenn@chromium.org> S: Maintained F: devicetree/bindings/watchdog/arm,smc-wdt.yaml +F: drivers/watchdog/arm_smc_wdt.c ARM SMMU DRIVERS M: Will Deacon <will@kernel.org> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index b2f667307f82..8527db9e92a6 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -451,6 +451,7 @@ CONFIG_QCOM_TSENS=y CONFIG_UNIPHIER_THERMAL=y CONFIG_WATCHDOG=y CONFIG_ARM_SP805_WATCHDOG=y +CONFIG_ARM_SMC_WATCHDOG=y CONFIG_S3C2410_WATCHDOG=y CONFIG_DW_WATCHDOG=y CONFIG_SUNXI_WATCHDOG=m diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index cec868f8db3f..0f7f93342051 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -857,6 +857,18 @@ config DIGICOLOR_WATCHDOG To compile this driver as a module, choose M here: the module will be called digicolor_wdt. +config ARM_SMC_WATCHDOG + tristate "ARM Secure Monitor Call based watchdog support" + depends on ARM || ARM64 + select WATCHDOG_CORE + help + Say Y here to include support for a watchdog timer + implemented by the EL3 Secure Monitor on ARM platforms. + Requires firmware support. + To compile this driver as a module, choose M here: the + module will be called arm_smc_wdt. + + config LPC18XX_WATCHDOG tristate "LPC18xx/43xx Watchdog" depends on ARCH_LPC18XX || COMPILE_TEST diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 2ee352bf3372..a1e6d83a7659 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -92,6 +92,7 @@ obj-$(CONFIG_STM32_WATCHDOG) += stm32_iwdg.o obj-$(CONFIG_UNIPHIER_WATCHDOG) += uniphier_wdt.o obj-$(CONFIG_RTD119X_WATCHDOG) += rtd119x_wdt.o obj-$(CONFIG_SPRD_WATCHDOG) += sprd_wdt.o +obj-$(CONFIG_ARM_SMC_WATCHDOG) += arm_smc_wdt.o obj-$(CONFIG_PM8916_WATCHDOG) += pm8916_wdt.o # X86 (i386 + ia64 + x86_64) Architecture diff --git a/drivers/watchdog/arm_smc_wdt.c b/drivers/watchdog/arm_smc_wdt.c new file mode 100644 index 000000000000..58e7294136ef --- /dev/null +++ b/drivers/watchdog/arm_smc_wdt.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ARM Secure Monitor Call watchdog driver + * + * Copyright 2018 The Chromium OS Authors. All rights reserved. + * + * Julius Werner <jwerner@chromium.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Based on mtk_wdt.c + */ + +#include <linux/arm-smccc.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/watchdog.h> +#include <uapi/linux/psci.h> + +#define DRV_NAME "arm_smc_wdt" +#define DRV_VERSION "1.0" + +#define SMCWD_FUNC_ID 0x82003d06 + +enum smcwd_call { + SMCWD_INFO = 0, + SMCWD_SET_TIMEOUT = 1, + SMCWD_ENABLE = 2, + SMCWD_PET = 3, +}; + +static bool nowayout = WATCHDOG_NOWAYOUT; +static unsigned int timeout; + +static int smcwd_call(enum smcwd_call call, unsigned long arg, + struct arm_smccc_res *res) +{ + struct arm_smccc_res local_res; + + if (!res) + res = &local_res; + + arm_smccc_smc(SMCWD_FUNC_ID, call, arg, 0, 0, 0, 0, 0, res); + + if ((int)res->a0 == PSCI_RET_NOT_SUPPORTED) + return -ENOTSUPP; + if ((int)res->a0 == PSCI_RET_INVALID_PARAMS) + return -EINVAL; + if ((int)res->a0 < 0) + return -EIO; + return res->a0; +} + +static int smcwd_ping(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_PET, 0, NULL); +} + +static int smcwd_set_timeout(struct watchdog_device *wdd, + unsigned int timeout) +{ + int res; + + res = smcwd_call(SMCWD_SET_TIMEOUT, timeout, NULL); + if (!res) + wdd->timeout = timeout; + return res; +} + +static int smcwd_stop(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_ENABLE, 0, NULL); +} + +static int smcwd_start(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_ENABLE, 1, NULL); +} + +static const struct watchdog_info smcwd_info = { + .identity = DRV_NAME, + .options = WDIOF_SETTIMEOUT | + WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static const struct watchdog_ops smcwd_ops = { + .owner = THIS_MODULE, + .start = smcwd_start, + .stop = smcwd_stop, + .ping = smcwd_ping, + .set_timeout = smcwd_set_timeout, +}; + +static int smcwd_probe(struct platform_device *pdev) +{ + struct watchdog_device *wdd; + int err; + struct arm_smccc_res res; + + err = smcwd_call(SMCWD_INFO, 0, &res); + if (err < 0) + return err; + + wdd = devm_kzalloc(&pdev->dev, sizeof(*wdd), GFP_KERNEL); + if (!wdd) + return -ENOMEM; + + platform_set_drvdata(pdev, wdd); + + wdd->info = &smcwd_info; + wdd->ops = &smcwd_ops; + wdd->timeout = res.a2; + wdd->max_timeout = res.a2; + wdd->min_timeout = res.a1; + wdd->parent = &pdev->dev; + + watchdog_set_nowayout(wdd, nowayout); + watchdog_init_timeout(wdd, timeout, &pdev->dev); + err = smcwd_set_timeout(wdd, wdd->timeout); + if (err) + return err; + + err = watchdog_register_device(wdd); + if (err) + return err; + + dev_info(&pdev->dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)\n", + wdd->timeout, nowayout); + + return 0; +} + +static void smcwd_shutdown(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + if (watchdog_active(wdd)) + smcwd_stop(wdd); +} + +static int smcwd_remove(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + watchdog_unregister_device(wdd); + + return 0; +} + +static const struct of_device_id smcwd_dt_ids[] = { + { .compatible = "arm,smc-wdt" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, smcwd_dt_ids); + +static struct platform_driver smcwd_driver = { + .probe = smcwd_probe, + .remove = smcwd_remove, + .shutdown = smcwd_shutdown, + .driver = { + .name = DRV_NAME, + .of_match_table = smcwd_dt_ids, + }, +}; + +module_platform_driver(smcwd_driver); + +module_param(timeout, uint, 0); +MODULE_PARM_DESC(timeout, "Watchdog heartbeat in seconds"); + +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Julius Werner <jwerner@chromium.org>"); +MODULE_DESCRIPTION("ARM Secure Monitor Call Watchdog Driver"); +MODULE_VERSION(DRV_VERSION); -- 2.25.0.265.gbab2e86ba0-goog
WARNING: multiple messages have this Message-ID (diff)
From: Evan Benn <evanbenn@chromium.org> To: LKML <linux-kernel@vger.kernel.org> Cc: "Rob Herring" <robh@kernel.org>, "Wim Van Sebroeck" <wim@linux-watchdog.org>, linux-watchdog@vger.kernel.org, "Anson Huang" <Anson.Huang@nxp.com>, "Dinh Nguyen" <dinguyen@kernel.org>, "Catalin Marinas" <catalin.marinas@arm.com>, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Shawn Guo" <shawnguo@kernel.org>, "Bjorn Andersson" <bjorn.andersson@linaro.org>, "Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>, "Olof Johansson" <olof@lixom.net>, "Clément Péron" <peron.clem@gmail.com>, "Evan Benn" <evanbenn@chromium.org>, linux-arm-kernel@lists.infradead.org, "Jonathan Cameron" <Jonathan.Cameron@huawei.com>, "Mauro Carvalho Chehab" <mchehab+samsung@kernel.org>, jwerner@chromium.org, "Leonard Crestez" <leonard.crestez@nxp.com>, "Will Deacon" <will@kernel.org>, "David S. Miller" <davem@davemloft.net>, "Guenter Roeck" <linux@roeck-us.net> Subject: [PATCH 2/2] watchdog: Add new arm_smc_wdt watchdog driver Date: Fri, 14 Feb 2020 17:26:37 +1100 [thread overview] Message-ID: <20200214172512.2.I7c8247c29891a538f258cb47828d58acf22c95a2@changeid> (raw) In-Reply-To: <20200214062637.216209-1-evanbenn@chromium.org> From: Julius Werner <jwerner@chromium.org> This patch adds a stub watchdog driver that can be used on ARM systems with a Secure Monitor firmware to forward watchdog operations to firmware via a Secure Monitor Call. This may be useful for platforms using TrustZone that want the Secure Monitor firmware to have the final control over the watchdog. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Evan Benn <evanbenn@chromium.org> --- MAINTAINERS | 1 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 12 +++ drivers/watchdog/Makefile | 1 + drivers/watchdog/arm_smc_wdt.c | 191 +++++++++++++++++++++++++++++++++ 5 files changed, 206 insertions(+) create mode 100644 drivers/watchdog/arm_smc_wdt.c diff --git a/MAINTAINERS b/MAINTAINERS index 5c45536e1177..71df3c110fdb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1426,6 +1426,7 @@ M: Julius Werner <jwerner@chromium.org> R: Evan Benn <evanbenn@chromium.org> S: Maintained F: devicetree/bindings/watchdog/arm,smc-wdt.yaml +F: drivers/watchdog/arm_smc_wdt.c ARM SMMU DRIVERS M: Will Deacon <will@kernel.org> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index b2f667307f82..8527db9e92a6 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -451,6 +451,7 @@ CONFIG_QCOM_TSENS=y CONFIG_UNIPHIER_THERMAL=y CONFIG_WATCHDOG=y CONFIG_ARM_SP805_WATCHDOG=y +CONFIG_ARM_SMC_WATCHDOG=y CONFIG_S3C2410_WATCHDOG=y CONFIG_DW_WATCHDOG=y CONFIG_SUNXI_WATCHDOG=m diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index cec868f8db3f..0f7f93342051 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -857,6 +857,18 @@ config DIGICOLOR_WATCHDOG To compile this driver as a module, choose M here: the module will be called digicolor_wdt. +config ARM_SMC_WATCHDOG + tristate "ARM Secure Monitor Call based watchdog support" + depends on ARM || ARM64 + select WATCHDOG_CORE + help + Say Y here to include support for a watchdog timer + implemented by the EL3 Secure Monitor on ARM platforms. + Requires firmware support. + To compile this driver as a module, choose M here: the + module will be called arm_smc_wdt. + + config LPC18XX_WATCHDOG tristate "LPC18xx/43xx Watchdog" depends on ARCH_LPC18XX || COMPILE_TEST diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 2ee352bf3372..a1e6d83a7659 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -92,6 +92,7 @@ obj-$(CONFIG_STM32_WATCHDOG) += stm32_iwdg.o obj-$(CONFIG_UNIPHIER_WATCHDOG) += uniphier_wdt.o obj-$(CONFIG_RTD119X_WATCHDOG) += rtd119x_wdt.o obj-$(CONFIG_SPRD_WATCHDOG) += sprd_wdt.o +obj-$(CONFIG_ARM_SMC_WATCHDOG) += arm_smc_wdt.o obj-$(CONFIG_PM8916_WATCHDOG) += pm8916_wdt.o # X86 (i386 + ia64 + x86_64) Architecture diff --git a/drivers/watchdog/arm_smc_wdt.c b/drivers/watchdog/arm_smc_wdt.c new file mode 100644 index 000000000000..58e7294136ef --- /dev/null +++ b/drivers/watchdog/arm_smc_wdt.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ARM Secure Monitor Call watchdog driver + * + * Copyright 2018 The Chromium OS Authors. All rights reserved. + * + * Julius Werner <jwerner@chromium.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Based on mtk_wdt.c + */ + +#include <linux/arm-smccc.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/watchdog.h> +#include <uapi/linux/psci.h> + +#define DRV_NAME "arm_smc_wdt" +#define DRV_VERSION "1.0" + +#define SMCWD_FUNC_ID 0x82003d06 + +enum smcwd_call { + SMCWD_INFO = 0, + SMCWD_SET_TIMEOUT = 1, + SMCWD_ENABLE = 2, + SMCWD_PET = 3, +}; + +static bool nowayout = WATCHDOG_NOWAYOUT; +static unsigned int timeout; + +static int smcwd_call(enum smcwd_call call, unsigned long arg, + struct arm_smccc_res *res) +{ + struct arm_smccc_res local_res; + + if (!res) + res = &local_res; + + arm_smccc_smc(SMCWD_FUNC_ID, call, arg, 0, 0, 0, 0, 0, res); + + if ((int)res->a0 == PSCI_RET_NOT_SUPPORTED) + return -ENOTSUPP; + if ((int)res->a0 == PSCI_RET_INVALID_PARAMS) + return -EINVAL; + if ((int)res->a0 < 0) + return -EIO; + return res->a0; +} + +static int smcwd_ping(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_PET, 0, NULL); +} + +static int smcwd_set_timeout(struct watchdog_device *wdd, + unsigned int timeout) +{ + int res; + + res = smcwd_call(SMCWD_SET_TIMEOUT, timeout, NULL); + if (!res) + wdd->timeout = timeout; + return res; +} + +static int smcwd_stop(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_ENABLE, 0, NULL); +} + +static int smcwd_start(struct watchdog_device *wdd) +{ + return smcwd_call(SMCWD_ENABLE, 1, NULL); +} + +static const struct watchdog_info smcwd_info = { + .identity = DRV_NAME, + .options = WDIOF_SETTIMEOUT | + WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static const struct watchdog_ops smcwd_ops = { + .owner = THIS_MODULE, + .start = smcwd_start, + .stop = smcwd_stop, + .ping = smcwd_ping, + .set_timeout = smcwd_set_timeout, +}; + +static int smcwd_probe(struct platform_device *pdev) +{ + struct watchdog_device *wdd; + int err; + struct arm_smccc_res res; + + err = smcwd_call(SMCWD_INFO, 0, &res); + if (err < 0) + return err; + + wdd = devm_kzalloc(&pdev->dev, sizeof(*wdd), GFP_KERNEL); + if (!wdd) + return -ENOMEM; + + platform_set_drvdata(pdev, wdd); + + wdd->info = &smcwd_info; + wdd->ops = &smcwd_ops; + wdd->timeout = res.a2; + wdd->max_timeout = res.a2; + wdd->min_timeout = res.a1; + wdd->parent = &pdev->dev; + + watchdog_set_nowayout(wdd, nowayout); + watchdog_init_timeout(wdd, timeout, &pdev->dev); + err = smcwd_set_timeout(wdd, wdd->timeout); + if (err) + return err; + + err = watchdog_register_device(wdd); + if (err) + return err; + + dev_info(&pdev->dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)\n", + wdd->timeout, nowayout); + + return 0; +} + +static void smcwd_shutdown(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + if (watchdog_active(wdd)) + smcwd_stop(wdd); +} + +static int smcwd_remove(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + watchdog_unregister_device(wdd); + + return 0; +} + +static const struct of_device_id smcwd_dt_ids[] = { + { .compatible = "arm,smc-wdt" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, smcwd_dt_ids); + +static struct platform_driver smcwd_driver = { + .probe = smcwd_probe, + .remove = smcwd_remove, + .shutdown = smcwd_shutdown, + .driver = { + .name = DRV_NAME, + .of_match_table = smcwd_dt_ids, + }, +}; + +module_platform_driver(smcwd_driver); + +module_param(timeout, uint, 0); +MODULE_PARM_DESC(timeout, "Watchdog heartbeat in seconds"); + +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Julius Werner <jwerner@chromium.org>"); +MODULE_DESCRIPTION("ARM Secure Monitor Call Watchdog Driver"); +MODULE_VERSION(DRV_VERSION); -- 2.25.0.265.gbab2e86ba0-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-02-14 6:27 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-14 6:26 [PATCH 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls Evan Benn 2020-02-14 6:26 ` Evan Benn 2020-02-14 6:26 ` [PATCH 1/2] dt-bindings: watchdog: Add arm,smc-wdt watchdog arm,smc-wdt compatible Evan Benn 2020-02-19 22:30 ` Rob Herring 2020-02-19 23:04 ` Julius Werner 2020-02-19 23:20 ` Guenter Roeck 2020-02-20 6:41 ` Evan Benn 2020-02-20 15:43 ` Guenter Roeck 2020-02-21 15:36 ` Xingyu Chen 2020-02-21 19:41 ` Julius Werner 2020-02-21 20:46 ` Guenter Roeck 2020-02-22 4:01 ` Xingyu Chen 2020-02-24 1:10 ` Evan Benn 2020-02-25 1:23 ` Julius Werner 2020-02-25 7:44 ` Xingyu Chen 2020-02-25 7:44 ` Xingyu Chen 2020-03-10 1:00 ` Evan Benn 2020-03-10 1:00 ` Evan Benn [not found] ` <ad28aa47-0490-937f-898f-0e4695ef6ec6@amlogic.com> 2020-03-11 19:24 ` Julius Werner 2020-03-11 19:24 ` Julius Werner 2020-03-13 16:13 ` Xingyu Chen 2020-03-13 16:13 ` Xingyu Chen 2020-02-14 6:26 ` Evan Benn [this message] 2020-02-14 6:26 ` [PATCH 2/2] watchdog: Add new arm_smc_wdt watchdog driver Evan Benn 2020-02-14 9:35 ` Enric Balletbo Serra 2020-02-14 9:35 ` Enric Balletbo Serra 2020-02-14 14:10 ` Guenter Roeck 2020-02-14 14:10 ` Guenter Roeck 2020-02-14 21:32 ` Julius Werner 2020-02-14 21:32 ` Julius Werner 2020-02-15 1:39 ` Evan Benn 2020-02-15 1:39 ` Evan Benn 2020-02-20 6:50 ` Evan Benn 2020-02-20 6:50 ` Evan Benn 2020-02-20 15:52 ` Guenter Roeck 2020-02-20 15:52 ` Guenter Roeck
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20200214172512.2.I7c8247c29891a538f258cb47828d58acf22c95a2@changeid \ --to=evanbenn@chromium.org \ --cc=Anson.Huang@nxp.com \ --cc=Jonathan.Cameron@huawei.com \ --cc=bjorn.andersson@linaro.org \ --cc=catalin.marinas@arm.com \ --cc=davem@davemloft.net \ --cc=dinguyen@kernel.org \ --cc=gregkh@linuxfoundation.org \ --cc=jwerner@chromium.org \ --cc=leonard.crestez@nxp.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-watchdog@vger.kernel.org \ --cc=linux@roeck-us.net \ --cc=marcin.juszkiewicz@linaro.org \ --cc=mchehab+samsung@kernel.org \ --cc=olof@lixom.net \ --cc=peron.clem@gmail.com \ --cc=robh@kernel.org \ --cc=shawnguo@kernel.org \ --cc=will@kernel.org \ --cc=wim@linux-watchdog.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.