From: Guenter Roeck <linux@roeck-us.net>
To: Evan Benn <evanbenn@chromium.org>, LKML <linux-kernel@vger.kernel.org>
Cc: jwerner@chromium.org, xingyu.chen@amlogic.com,
"David S. Miller" <davem@davemloft.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org
Subject: Re: [PATCH v6 1/2] dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog
Date: Wed, 6 May 2020 06:45:46 -0700 [thread overview]
Message-ID: <adbf700e-20e6-47db-a674-f965f65818c6@roeck-us.net> (raw)
In-Reply-To: <20200505131242.v6.1.Id96574f1f52479d7a2f3b866b8a0552ab8c03d7f@changeid>
On 5/4/20 8:13 PM, Evan Benn wrote:
> This watchdog can be used on ARM systems with a Secure
> Monitor firmware to forward watchdog operations to
> firmware via a Secure Monitor Call.
>
> Signed-off-by: Evan Benn <evanbenn@chromium.org>
>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
>
> Changes in v6:
> - Don't use dt default
>
> Changes in v5:
> - Change compatible to arm,smc-wdt
>
> Changes in v4:
> - Add arm,smc-id property
>
> Changes in v3:
> - Change name back to arm
>
> Changes in v2:
> - Change name arm > mt8173
>
> .../bindings/watchdog/arm-smc-wdt.yaml | 37 +++++++++++++++++++
> MAINTAINERS | 6 +++
> 2 files changed, 43 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml
>
> diff --git a/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml b/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml
> new file mode 100644
> index 0000000000000..bec651541e0c8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml
> @@ -0,0 +1,37 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/arm-smc-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ARM Secure Monitor Call based watchdog
> +
> +allOf:
> + - $ref: "watchdog.yaml#"
> +
> +maintainers:
> + - Julius Werner <jwerner@chromium.org>
> +
> +properties:
> + compatible:
> + enum:
> + - arm,smc-wdt
> + arm,smc-id:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + The ATF smc function id used by the firmware.
> + Defaults to 0x82003D06 if unset.
> +
> +required:
> + - compatible
> +
> +examples:
> + - |
> + watchdog {
> + compatible = "arm,smc-wdt";
> + arm,smc-id = <0x82003D06>;
> + timeout-sec = <15>;
> + };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index b816a453b10eb..0f2b39767bfa9 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1457,6 +1457,12 @@ S: Maintained
> F: Documentation/devicetree/bindings/interrupt-controller/arm,vic.txt
> F: drivers/irqchip/irq-vic.c
>
> +ARM SMC WATCHDOG DRIVER
> +M: Julius Werner <jwerner@chromium.org>
> +R: Evan Benn <evanbenn@chromium.org>
> +S: Maintained
> +F: devicetree/bindings/watchdog/arm-smc-wdt.yaml
> +
> ARM SMMU DRIVERS
> M: Will Deacon <will@kernel.org>
> R: Robin Murphy <robin.murphy@arm.com>
>
next prev parent reply other threads:[~2020-05-06 13:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 3:13 [PATCH v6 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls Evan Benn
2020-05-05 3:13 ` [PATCH v6 1/2] dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog Evan Benn
2020-05-05 19:09 ` Rob Herring
2020-05-06 13:45 ` Guenter Roeck [this message]
2020-05-05 3:13 ` [PATCH v6 2/2] watchdog: Add new arm_smc_wdt watchdog driver Evan Benn
2020-05-05 20:09 ` Julius Werner
2020-05-06 6:21 ` Xingyu Chen
2020-05-06 13:46 ` Guenter Roeck
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