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Message-Id: <1475817915-11976-2-git-send-email-okaya@codeaurora.org>
Date: Fri, 7 Oct 2016 01:25:06 -0400
From: Sinan Kaya <okaya@...eaurora.org>
To: dmaengine@...r.kernel.org, timur@...eaurora.org,
devicetree@...r.kernel.org, cov@...eaurora.org,
vinod.koul@...el.com, jcm@...hat.com
Cc: agross@...eaurora.org, arnd@...db.de,
linux-arm-msm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Sinan Kaya <okaya@...eaurora.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
linux-kernel@...r.kernel.org
Subject: [PATCH V5 01/10] Documentation: DT: qcom_hidma: update binding for MSI
Adding a new binding for qcom,hidma-1.1 to distinguish HW supporting
MSI interrupts from the older revision.
Signed-off-by: Sinan Kaya <okaya@...eaurora.org>
---
Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt
index fd5618b..2c5e4b8 100644
--- a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt
+++ b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt
@@ -47,12 +47,18 @@ When the OS is not in control of the management interface (i.e. it's a guest),
the channel nodes appear on their own, not under a management node.
Required properties:
-- compatible: must contain "qcom,hidma-1.0"
+- compatible: must contain "qcom,hidma-1.0" for initial HW or "qcom,hidma-1.1"
+for MSI capable HW.
- reg: Addresses for the transfer and event channel
- interrupts: Should contain the event interrupt
- desc-count: Number of asynchronous requests this channel can handle
- iommus: required a iommu node
+Optional properties for MSI:
+- msi-parent : See the generic MSI binding described in
+ devicetree/bindings/interrupt-controller/msi.txt for a description of the
+ msi-parent property.
+
Example:
Hypervisor OS configuration:
--
1.9.1
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