From: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
To: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
Cc: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
Linux-Renesas
<linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux PM list <linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 2/3] dt-bindings: power: reset: add document for renesas-reset driver
Date: Tue, 14 Feb 2017 18:18:33 +0100 [thread overview]
Message-ID: <CAMuHMdWdiosERjUm3ZxZiZL90_4j+CrNm9RU9GaPft7AXbN8kA@mail.gmail.com> (raw)
In-Reply-To: <20170213182532.4042-3-chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
Hi Chris,
On Mon, Feb 13, 2017 at 7:25 PM, Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org> wrote:
> Add device tree bindings document for renesas-reset driver.
> This driver uses the WDT hardware to issue an immediate reset.
>
> Signed-off-by: Chris Brandt <chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
> ---
> .../devicetree/bindings/power/reset/renesas-reset.txt | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/reset/renesas-reset.txt
>
> diff --git a/Documentation/devicetree/bindings/power/reset/renesas-reset.txt b/Documentation/devicetree/bindings/power/reset/renesas-reset.txt
> new file mode 100644
> index 0000000..241722d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/reset/renesas-reset.txt
> @@ -0,0 +1,15 @@
> +Device-Tree bindings for Renesas WDT reset functionality
Please drop "reset", as this is a watchdog device.
> +Required properties:
> + - compatible: must be one or more of the following:
> + - "renesas,r7s72100-reset" for the r7s72100 SoC
> + - "renesas,wdt-reset"
> + This is a fallback for the above renesas,*-reset entries
Please use "renesas,r7s72100-wdt". DT describes the hardware (watchdog),
not the software policy (use it for reset only, as a max. timeout of 125 ms is
too short for a usable watchdog).
> + - reg: base address and length of the WDT register block
> +
> +Example node:
> + wdt: timer@fcfe0000 {
> + compatible = "renesas,r7s72100-reset", "renesas,wdt-reset";
> + reg = <0xfcfe0000 0x6>;
> + };
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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WARNING: multiple messages have this Message-ID (diff)
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Chris Brandt <chris.brandt@renesas.com>
Cc: Sebastian Reichel <sre@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Simon Horman <horms@verge.net.au>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Linux PM list <linux-pm@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [PATCH 2/3] dt-bindings: power: reset: add document for renesas-reset driver
Date: Tue, 14 Feb 2017 18:18:33 +0100 [thread overview]
Message-ID: <CAMuHMdWdiosERjUm3ZxZiZL90_4j+CrNm9RU9GaPft7AXbN8kA@mail.gmail.com> (raw)
In-Reply-To: <20170213182532.4042-3-chris.brandt@renesas.com>
Hi Chris,
On Mon, Feb 13, 2017 at 7:25 PM, Chris Brandt <chris.brandt@renesas.com> wrote:
> Add device tree bindings document for renesas-reset driver.
> This driver uses the WDT hardware to issue an immediate reset.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
> ---
> .../devicetree/bindings/power/reset/renesas-reset.txt | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/reset/renesas-reset.txt
>
> diff --git a/Documentation/devicetree/bindings/power/reset/renesas-reset.txt b/Documentation/devicetree/bindings/power/reset/renesas-reset.txt
> new file mode 100644
> index 0000000..241722d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/reset/renesas-reset.txt
> @@ -0,0 +1,15 @@
> +Device-Tree bindings for Renesas WDT reset functionality
Please drop "reset", as this is a watchdog device.
> +Required properties:
> + - compatible: must be one or more of the following:
> + - "renesas,r7s72100-reset" for the r7s72100 SoC
> + - "renesas,wdt-reset"
> + This is a fallback for the above renesas,*-reset entries
Please use "renesas,r7s72100-wdt". DT describes the hardware (watchdog),
not the software policy (use it for reset only, as a max. timeout of 125 ms is
too short for a usable watchdog).
> + - reg: base address and length of the WDT register block
> +
> +Example node:
> + wdt: timer@fcfe0000 {
> + compatible = "renesas,r7s72100-reset", "renesas,wdt-reset";
> + reg = <0xfcfe0000 0x6>;
> + };
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2017-02-14 17:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-13 18:25 [PATCH 0/3] power: reset: add reset for renesas r7s72100 Chris Brandt
2017-02-13 18:25 ` [PATCH 1/3] power: reset: Add Renesas reset driver Chris Brandt
2017-02-15 9:16 ` Geert Uytterhoeven
[not found] ` <20170213182532.4042-1-chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-02-13 18:25 ` [PATCH 2/3] dt-bindings: power: reset: add document for renesas-reset driver Chris Brandt
2017-02-13 18:25 ` Chris Brandt
[not found] ` <20170213182532.4042-3-chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-02-14 17:18 ` Geert Uytterhoeven [this message]
2017-02-14 17:18 ` Geert Uytterhoeven
2017-02-14 17:51 ` Chris Brandt
2017-02-15 17:33 ` Chris Brandt
2017-02-16 13:51 ` Geert Uytterhoeven
2017-02-16 14:25 ` Chris Brandt
2017-02-13 18:25 ` [PATCH 3/3] ARM: dts: r7s72100: Add reset handler Chris Brandt
2017-02-15 9:21 ` Geert Uytterhoeven
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