From: Chris Brandt <chris.brandt@renesas.com>
To: Sebastian Reichel <sre@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Simon Horman <horms@verge.net.au>
Cc: linux-renesas-soc@vger.kernel.org, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org,
Chris Brandt <chris.brandt@renesas.com>
Subject: [PATCH 0/3] power: reset: add reset for renesas r7s72100
Date: Mon, 13 Feb 2017 13:25:29 -0500 [thread overview]
Message-ID: <20170213182532.4042-1-chris.brandt@renesas.com> (raw)
Some Renesas SoCs do not have a reset register and the only way to do a SW
controlled reset is to use the watchdog timer.
Additionally, since all the WDT timeout options are so quick, a system
reset is about the only thing it's good for.
For example, the longest WDT overflow you can get with a RZ/A1 (R7S72100)
with its 8-bit wide counter is 125ms.
Chris Brandt (3):
power: reset: Add Renesas reset driver
dt-bindings: power: reset: add document for renesas-reset driver
ARM: dts: r7s72100: Add reset handler
.../bindings/power/reset/renesas-reset.txt | 15 +++
arch/arm/boot/dts/r7s72100.dtsi | 5 +
drivers/power/reset/Kconfig | 9 ++
drivers/power/reset/Makefile | 1 +
drivers/power/reset/renesas-reset.c | 103 +++++++++++++++++++++
5 files changed, 133 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/reset/renesas-reset.txt
create mode 100644 drivers/power/reset/renesas-reset.c
--
2.10.1
next reply other threads:[~2017-02-13 18:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-13 18:25 Chris Brandt [this message]
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
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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