From: Derek Basehore <dbasehore@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: Soby.Mathew@arm.com, sudeep.holla@arm.com,
devicetree@vger.kernel.org, robh+dt@kernel.org,
mark.rutland@arm.com, linux-pm@vger.kernel.org,
rafael.j.wysocki@intel.com, tglx@linutronix.de,
briannorris@chromium.org, marc.zyngier@arm.com,
Derek Basehore <dbasehore@chromium.org>
Subject: [PATCH v6 2/3] DT/arm,gic-v3-its: add reset-on-suspend property
Date: Wed, 7 Feb 2018 18:36:47 -0800 [thread overview]
Message-ID: <20180208023648.89124-3-dbasehore@chromium.org> (raw)
In-Reply-To: <20180208023648.89124-1-dbasehore@chromium.org>
This adds documentation for the new reset-on-suspend property. This
property enables saving and restoring the ITS for when it loses state
in system suspend.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
---
Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
index 0a57f2f4167d..a470147d4f14 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
@@ -78,6 +78,9 @@ These nodes must have the following properties:
Optional:
- socionext,synquacer-pre-its: (u32, u32) tuple describing the untranslated
address and size of the pre-ITS window.
+- reset-on-suspend: Boolean property. Indicates that the ITS state is
+ reset on suspend. The state is then saved on suspend and restored on
+ resume.
The main GIC node must contain the appropriate #address-cells,
#size-cells and ranges properties for the reg property of all ITS
--
2.16.0.rc1.238.g530d649a79-goog
next prev parent reply other threads:[~2018-02-08 2:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-08 2:36 [PATCH v6 0/3] GICv3 Save and Restore Derek Basehore
2018-02-08 2:36 ` [PATCH v6 1/3] irqchip/gic-v3-its: add ability to save/restore ITS state Derek Basehore
2018-02-08 17:55 ` Brian Norris
2018-02-08 2:36 ` Derek Basehore [this message]
2018-02-08 13:46 ` [PATCH v6 2/3] DT/arm,gic-v3-its: add reset-on-suspend property Mark Rutland
2018-02-08 2:36 ` [PATCH v6 3/3] irqchip/gic-v3-its: add ability to resend MAPC on resume Derek Basehore
2018-02-08 18:02 ` Brian Norris
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