* [PATCH v6 0/5] add meson secure watchdog driver
@ 2020-01-14 3:45 Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 1/5] firmware: meson_sm: add new SMC ID support for accessing secure watchdog Xingyu Chen
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: Xingyu Chen @ 2020-01-14 3:45 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Qianggui Song, devicetree, linux-watchdog, Jianxin Pan,
Martin Blumenstingl, linux-kernel, Rob Herring, Jian Hu,
linux-arm-kernel, linux-amlogic, Xingyu Chen, Jerome Brunet
The watchdog controller on the Meson-A/C series SoCs is moved to secure world,
We have to call SMC instruction to trap the ATF for watchdog operation. These
operations are different from previous SoCs, so we introduce a new watchdog
driver to support this kind of SoCs.
Changes since v5 at [4]:
- take the wdt node as child node of secure-monitor
- update dt-binding description
- invoke of_platform_default_populate() instantiate wdt device according to Rob's suggestion at [5]
- find the secure-monitor node through the wdt parent node instead of of_find_compatible_node()
- add Guenter's Reviewed-by
Changes since v4 at [3]:
- add watchdog node in dts, and introduce a new optional property "timeout-sec"
- add dt-binding for meson secure watchdog
- instantiate wdt device through dts node instead of platform_device_register_simple()
Changes since v3 at [2]:
- add SM_A1_ prefix for WATCHDOG_OPS
- remove phandle to secure-monitor node
- remove watchdog node from dts, and register wdt device by platform_device_register_simple()
- remove dt-binding for meson secure watchdog
- use the msec as unit of timeout parameter which is passed to fw side
Changes since v2 at [1]:
- remove useless dependency in Kconfig
- return zero when getting left time value fails
Changes since v1 at [0]:
- add a new dependency in Kconfig
- simplify/add the return operation
- remove useless ping operation when setting the timeout
- fix some return values
- fix the license statement
[0]:https://lore.kernel.org/linux-amlogic/1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com
[1]:https://lore.kernel.org/linux-amlogic/1571387622-35132-1-git-send-email-xingyu.chen@amlogic.com
[2]:https://lore.kernel.org/linux-amlogic/1571983984-11771-1-git-send-email-xingyu.chen@amlogic.com
[3]:https://lore.kernel.org/linux-amlogic/1574685218-31164-1-git-send-email-xingyu.chen@amlogic.com
[4]:https://lore.kernel.org/linux-amlogic/1576153187-28378-1-git-send-email-xingyu.chen@amlogic.com
[5]:https://patchwork.kernel.org/patch/11288017
Xingyu Chen (5):
firmware: meson_sm: add new SMC ID support for accessing secure
watchdog
firmware: meson_sm: populate platform device based on the child node
dt-bindings: watchdog: add new binding for meson secure watchdog
watchdog: add meson secure watchdog driver
arm64: dts: a1: add secure watchdog controller
.../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 40 +++++
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 6 +
drivers/firmware/meson/meson_sm.c | 3 +
drivers/watchdog/Kconfig | 16 ++
drivers/watchdog/Makefile | 1 +
drivers/watchdog/meson_sec_wdt.c | 185 +++++++++++++++++++++
include/linux/firmware/meson/meson_sm.h | 1 +
7 files changed, 252 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
create mode 100644 drivers/watchdog/meson_sec_wdt.c
--
2.7.4
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http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v6 1/5] firmware: meson_sm: add new SMC ID support for accessing secure watchdog
2020-01-14 3:45 [PATCH v6 0/5] add meson secure watchdog driver Xingyu Chen
@ 2020-01-14 3:45 ` Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 2/5] firmware: meson_sm: populate platform device based on the child node Xingyu Chen
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: Xingyu Chen @ 2020-01-14 3:45 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Qianggui Song, linux-watchdog, Jianxin Pan, Martin Blumenstingl,
linux-kernel, Rob Herring, Jian Hu, linux-arm-kernel,
linux-amlogic, Xingyu Chen, Jerome Brunet
The new SMC ID is used to access secure registers by meson secure
watchdog driver.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
drivers/firmware/meson/meson_sm.c | 1 +
include/linux/firmware/meson/meson_sm.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index 1d5b4d7..8cdd405 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -44,6 +44,7 @@ static const struct meson_sm_chip gxbb_chip = {
CMD(SM_EFUSE_WRITE, 0x82000031),
CMD(SM_EFUSE_USER_MAX, 0x82000033),
CMD(SM_GET_CHIP_ID, 0x82000044),
+ CMD(SM_A1_WATCHDOG_OPS, 0x82000086),
{ /* sentinel */ },
},
};
diff --git a/include/linux/firmware/meson/meson_sm.h b/include/linux/firmware/meson/meson_sm.h
index 6669e2a..9ef1524 100644
--- a/include/linux/firmware/meson/meson_sm.h
+++ b/include/linux/firmware/meson/meson_sm.h
@@ -12,6 +12,7 @@ enum {
SM_EFUSE_WRITE,
SM_EFUSE_USER_MAX,
SM_GET_CHIP_ID,
+ SM_A1_WATCHDOG_OPS,
};
struct meson_sm_firmware;
--
2.7.4
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^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 2/5] firmware: meson_sm: populate platform device based on the child node
2020-01-14 3:45 [PATCH v6 0/5] add meson secure watchdog driver Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 1/5] firmware: meson_sm: add new SMC ID support for accessing secure watchdog Xingyu Chen
@ 2020-01-14 3:45 ` Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 4/5] watchdog: add meson secure watchdog driver Xingyu Chen
3 siblings, 0 replies; 6+ messages in thread
From: Xingyu Chen @ 2020-01-14 3:45 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Qianggui Song, linux-watchdog, Jianxin Pan, Martin Blumenstingl,
linux-kernel, Rob Herring, Jian Hu, linux-arm-kernel,
linux-amlogic, Xingyu Chen, Jerome Brunet
The child node of secure-monitor cann't be populated as platform device
automatically during the kernel initialization phase, so we invoke
of_platform_default_populate() to do it.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
drivers/firmware/meson/meson_sm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index 8cdd405..d2b1e76 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -310,6 +310,8 @@ static int __init meson_sm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, fw);
+ of_platform_default_populate(dev->of_node, NULL, dev);
+
pr_info("secure-monitor enabled\n");
if (sysfs_create_group(&pdev->dev.kobj, &meson_sm_sysfs_attr_group))
--
2.7.4
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http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog
2020-01-14 3:45 [PATCH v6 0/5] add meson secure watchdog driver Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 1/5] firmware: meson_sm: add new SMC ID support for accessing secure watchdog Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 2/5] firmware: meson_sm: populate platform device based on the child node Xingyu Chen
@ 2020-01-14 3:45 ` Xingyu Chen
2020-01-14 22:22 ` Rob Herring
2020-01-14 3:45 ` [PATCH v6 4/5] watchdog: add meson secure watchdog driver Xingyu Chen
3 siblings, 1 reply; 6+ messages in thread
From: Xingyu Chen @ 2020-01-14 3:45 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Qianggui Song, devicetree, linux-watchdog, Jianxin Pan,
Martin Blumenstingl, linux-kernel, Rob Herring, Jian Hu,
linux-arm-kernel, linux-amlogic, Xingyu Chen, Jerome Brunet
The binding targets the Meson-A/C series compatible SoCs, in which the
watchdog registers are in secure world.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
.../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 40 ++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
new file mode 100644
index 00000000..8e9d62a
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+# Copyright (c) 2019 Amlogic, Inc
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-wdt.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson Secure Watchdog Timer
+
+maintainers:
+ - Xingyu Chen <xingyu.chen@amlogic.com>
+
+description: |+
+ Secure Watchdog Timer used in Meson-A/C series Compatible SoCs,
+ and its device node must be the child node of secure-monitor.
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson-sec-wdt
+
+ timeout-sec:
+ minimum: 1
+ maximum: 65
+ description:
+ Watchdog timeout values (in seconds)
+
+required:
+ - compatible
+
+examples:
+ - |
+ secure-monitor {
+ compatible = "amlogic,meson-gxbb-sm";
+
+ watchdog {
+ compatible = "amlogic,meson-sec-wdt";
+ timeout-sec = <60>;
+ };
+ };
--
2.7.4
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linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 4/5] watchdog: add meson secure watchdog driver
2020-01-14 3:45 [PATCH v6 0/5] add meson secure watchdog driver Xingyu Chen
` (2 preceding siblings ...)
2020-01-14 3:45 ` [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
@ 2020-01-14 3:45 ` Xingyu Chen
3 siblings, 0 replies; 6+ messages in thread
From: Xingyu Chen @ 2020-01-14 3:45 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Qianggui Song, linux-watchdog, Jianxin Pan, Martin Blumenstingl,
linux-kernel, Rob Herring, Jian Hu, linux-arm-kernel,
linux-amlogic, Xingyu Chen, Jerome Brunet
The watchdog controller on the Meson-A/C series SoCs is moved to secure
world, watchdog operation needs to be done in secure EL3 mode via ATF,
Non-secure world can call SMC instruction to trap to AFT for watchdog
operation.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
drivers/watchdog/Kconfig | 16 ++++
drivers/watchdog/Makefile | 1 +
drivers/watchdog/meson_sec_wdt.c | 185 +++++++++++++++++++++++++++++++++++++++
3 files changed, 202 insertions(+)
create mode 100644 drivers/watchdog/meson_sec_wdt.c
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 1679e0d..5f88325 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -826,6 +826,22 @@ config MESON_GXBB_WATCHDOG
To compile this driver as a module, choose M here: the
module will be called meson_gxbb_wdt.
+config MESON_SEC_WATCHDOG
+ tristate "Amlogic Meson Secure watchdog support"
+ depends on MESON_SM
+ select WATCHDOG_CORE
+ help
+ The watchdog controller on the Meson-A/C series SoCs is moved to
+ secure world, watchdog operation needs to be done in secure EL3
+ mode via ATF, non-secure world can call SMC instruction to trap
+ to ATF for the watchdog operation.
+
+ Say Y here if watchdog controller on Meson SoCs is located in
+ secure world.
+
+ To compile this driver as a module, choose M here: the
+ module will be called meson_sec_wdt.
+
config MESON_WATCHDOG
tristate "Amlogic Meson SoCs watchdog support"
depends on ARCH_MESON || COMPILE_TEST
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 2ee352b..5e6b73d 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_QCOM_WDT) += qcom-wdt.o
obj-$(CONFIG_BCM_KONA_WDT) += bcm_kona_wdt.o
obj-$(CONFIG_TEGRA_WATCHDOG) += tegra_wdt.o
obj-$(CONFIG_MESON_GXBB_WATCHDOG) += meson_gxbb_wdt.o
+obj-$(CONFIG_MESON_SEC_WATCHDOG) += meson_sec_wdt.o
obj-$(CONFIG_MESON_WATCHDOG) += meson_wdt.o
obj-$(CONFIG_MEDIATEK_WATCHDOG) += mtk_wdt.o
obj-$(CONFIG_DIGICOLOR_WATCHDOG) += digicolor_wdt.o
diff --git a/drivers/watchdog/meson_sec_wdt.c b/drivers/watchdog/meson_sec_wdt.c
new file mode 100644
index 00000000..493cbe8
--- /dev/null
+++ b/drivers/watchdog/meson_sec_wdt.c
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Xingyu Chen <xingyu.chen@amlogic.com>
+ *
+ */
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <linux/firmware/meson/meson_sm.h>
+
+#define MESON_SIP_WDT_DISABLE 0x1
+#define MESON_SIP_WDT_ENABLE 0x2
+#define MESON_SIP_WDT_PING 0x3
+#define MESON_SIP_WDT_INIT 0x4
+#define MESON_SIP_WDT_RESETNOW 0x5
+#define MESON_SIP_WDT_SETTIMEOUT 0x6
+#define MESON_SIP_WDT_GETTIMELEFT 0x7
+
+#define DEFAULT_TIMEOUT 30 /* seconds */
+
+/*
+ * Watchdog timer tick is set to 1ms in secfw side, and tick count is
+ * stored in the bit[16-31] of WATCHDOG_CNT register, so the maximum
+ * timeout value is 0xffff ms.
+ */
+#define MAX_TIMEOUT_MS 0xFFFF
+
+struct meson_sec_wdt {
+ struct watchdog_device wdt_dev;
+ struct meson_sm_firmware *fw;
+};
+
+static int meson_sec_wdt_start(struct watchdog_device *wdt_dev)
+{
+ struct meson_sec_wdt *data = watchdog_get_drvdata(wdt_dev);
+
+ return meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, NULL,
+ MESON_SIP_WDT_ENABLE, 0, 0, 0, 0);
+}
+
+static int meson_sec_wdt_stop(struct watchdog_device *wdt_dev)
+{
+ struct meson_sec_wdt *data = watchdog_get_drvdata(wdt_dev);
+
+ return meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, NULL,
+ MESON_SIP_WDT_DISABLE, 0, 0, 0, 0);
+}
+
+static int meson_sec_wdt_ping(struct watchdog_device *wdt_dev)
+{
+ struct meson_sec_wdt *data = watchdog_get_drvdata(wdt_dev);
+
+ return meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, NULL,
+ MESON_SIP_WDT_PING, 0, 0, 0, 0);
+}
+
+static int meson_sec_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int timeout)
+{
+ struct meson_sec_wdt *data = watchdog_get_drvdata(wdt_dev);
+
+ wdt_dev->timeout = timeout;
+
+ return meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, NULL,
+ MESON_SIP_WDT_SETTIMEOUT,
+ wdt_dev->timeout * 1000, 0, 0, 0);
+}
+
+static unsigned int meson_sec_wdt_get_timeleft(struct watchdog_device *wdt_dev)
+{
+ int ret;
+ unsigned int timeleft;
+ struct meson_sec_wdt *data = watchdog_get_drvdata(wdt_dev);
+
+ ret = meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, &timeleft,
+ MESON_SIP_WDT_GETTIMELEFT, 0, 0, 0, 0);
+
+ if (ret)
+ return 0;
+
+ return timeleft;
+}
+
+static const struct watchdog_ops meson_sec_wdt_ops = {
+ .start = meson_sec_wdt_start,
+ .stop = meson_sec_wdt_stop,
+ .ping = meson_sec_wdt_ping,
+ .set_timeout = meson_sec_wdt_set_timeout,
+ .get_timeleft = meson_sec_wdt_get_timeleft,
+};
+
+static const struct watchdog_info meson_sec_wdt_info = {
+ .identity = "Meson Secure Watchdog Timer",
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+};
+
+static int __maybe_unused meson_sec_wdt_resume(struct device *dev)
+{
+ struct meson_sec_wdt *data = dev_get_drvdata(dev);
+
+ if (watchdog_active(&data->wdt_dev))
+ return meson_sec_wdt_start(&data->wdt_dev);
+
+ return 0;
+}
+
+static int __maybe_unused meson_sec_wdt_suspend(struct device *dev)
+{
+ struct meson_sec_wdt *data = dev_get_drvdata(dev);
+
+ if (watchdog_active(&data->wdt_dev))
+ return meson_sec_wdt_stop(&data->wdt_dev);
+
+ return 0;
+}
+
+static const struct dev_pm_ops meson_sec_wdt_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(meson_sec_wdt_suspend, meson_sec_wdt_resume)
+};
+
+static const struct of_device_id meson_sec_wdt_dt_ids[] = {
+ { .compatible = "amlogic,meson-sec-wdt", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, meson_sec_wdt_dt_ids);
+
+static int meson_sec_wdt_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct meson_sec_wdt *data;
+ struct device_node *sm_np;
+ int ret;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ sm_np = dev_of_node(dev->parent);
+ if (!sm_np)
+ return -EINVAL;
+
+ data->fw = meson_sm_get(sm_np);
+ if (!data->fw)
+ return -EPROBE_DEFER;
+
+ platform_set_drvdata(pdev, data);
+
+ data->wdt_dev.parent = dev;
+ data->wdt_dev.info = &meson_sec_wdt_info;
+ data->wdt_dev.ops = &meson_sec_wdt_ops;
+ data->wdt_dev.max_hw_heartbeat_ms = MAX_TIMEOUT_MS;
+ data->wdt_dev.min_timeout = 1;
+ data->wdt_dev.timeout = DEFAULT_TIMEOUT;
+ watchdog_set_drvdata(&data->wdt_dev, data);
+ watchdog_init_timeout(&data->wdt_dev, 0, dev);
+
+ ret = meson_sm_call(data->fw, SM_A1_WATCHDOG_OPS, NULL,
+ MESON_SIP_WDT_INIT,
+ data->wdt_dev.timeout * 1000, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ watchdog_stop_on_reboot(&data->wdt_dev);
+
+ return devm_watchdog_register_device(dev, &data->wdt_dev);
+}
+
+static struct platform_driver meson_sec_wdt_driver = {
+ .probe = meson_sec_wdt_probe,
+ .driver = {
+ .name = "meson-sec-wdt",
+ .pm = &meson_sec_wdt_pm_ops,
+ .of_match_table = meson_sec_wdt_dt_ids,
+ },
+};
+
+module_platform_driver(meson_sec_wdt_driver);
+
+MODULE_AUTHOR("Xingyu Chen <xingyu.chen@amlogic.com>");
+MODULE_DESCRIPTION("Amlogic Secure Watchdog Timer Driver");
+MODULE_LICENSE("Dual MIT/GPL");
--
2.7.4
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^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog
2020-01-14 3:45 ` [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
@ 2020-01-14 22:22 ` Rob Herring
0 siblings, 0 replies; 6+ messages in thread
From: Rob Herring @ 2020-01-14 22:22 UTC (permalink / raw)
To: Xingyu Chen
Cc: Qianggui Song, devicetree, linux-arm-kernel, linux-watchdog,
Jianxin Pan, Neil Armstrong, Martin Blumenstingl, Kevin Hilman,
linux-kernel, Jian Hu, Guenter Roeck, linux-amlogic,
Wim Van Sebroeck, Xingyu Chen, Jerome Brunet
On Tue, 14 Jan 2020 11:45:25 +0800, Xingyu Chen wrote:
> The binding targets the Meson-A/C series compatible SoCs, in which the
> watchdog registers are in secure world.
>
> Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
> ---
> .../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 40 ++++++++++++++++++++++
> 1 file changed, 40 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
_______________________________________________
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-01-14 22:22 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-14 3:45 [PATCH v6 0/5] add meson secure watchdog driver Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 1/5] firmware: meson_sm: add new SMC ID support for accessing secure watchdog Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 2/5] firmware: meson_sm: populate platform device based on the child node Xingyu Chen
2020-01-14 3:45 ` [PATCH v6 3/5] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
2020-01-14 22:22 ` Rob Herring
2020-01-14 3:45 ` [PATCH v6 4/5] watchdog: add meson secure watchdog driver Xingyu Chen
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