From: Jim Quinlan <james.quinlan@broadcom.com>
To: Sudeep Holla <sudeep.holla@arm.com>,
bcm-kernel-feedback-list@broadcom.com,
james.quinlan@broadcom.com
Cc: Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 1/2] dt-bindings: arm: Add optional interrupt to smc/hvc SCMI transport
Date: Thu, 12 Nov 2020 12:56:26 -0500 [thread overview]
Message-ID: <20201112175632.42234-2-james.quinlan@broadcom.com> (raw)
In-Reply-To: <20201112175632.42234-1-james.quinlan@broadcom.com>
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In normal use of smc/hvc transport in SCMI the message completion is
indicated by the return of the SMC call. This commit provides for an
optional interrupt named "message-serviced" which is used instead to
indicate the completion of a message.
Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
Documentation/devicetree/bindings/arm/arm,scmi.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt
index 55deb68230eb..7cdad11f40b1 100644
--- a/Documentation/devicetree/bindings/arm/arm,scmi.txt
+++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt
@@ -31,6 +31,14 @@ Optional properties:
- mbox-names: shall be "tx" or "rx" depending on mboxes entries.
+- interrupts : when using smc or hvc transports, this optional
+ property indicates that msg completion by the platform is indicated
+ by an interrupt rather than by the return of the smc call. This
+ should not be used except when the platform requires such behavior.
+
+- interrupt-names : if "interrupts" is present, interrupt-names must also
+ be present and have the value "message-serviced".
+
See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details
about the generic mailbox controller and client driver bindings.
--
2.17.1
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next prev parent reply other threads:[~2020-11-12 17:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-12 17:56 [PATCH v2 0/2] firmware: arm_scmi: Augment SMC/HVC to allow optional interrupt Jim Quinlan
2020-11-12 17:56 ` Jim Quinlan [this message]
2020-11-20 17:20 ` [PATCH v2 1/2] dt-bindings: arm: Add optional interrupt to smc/hvc SCMI transport Jim Quinlan
2020-12-07 19:01 ` Rob Herring
2020-12-07 19:49 ` Jim Quinlan
2020-11-12 17:56 ` [PATCH v2 2/2] firmware: arm_scmi: Augment SMC/HVC to allow optional interrupt Jim Quinlan
2020-11-13 9:47 ` Sudeep Holla
2020-11-13 14:26 ` Jim Quinlan
2020-11-13 14:36 ` Sudeep Holla
2020-11-13 15:12 ` Jim Quinlan
2020-11-19 18:34 ` Jim Quinlan
2020-11-20 11:14 ` Sudeep Holla
2020-11-20 13:27 ` Jim Quinlan
2020-11-20 14:09 ` Sudeep Holla
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