linux-kernel - [PATCH v7/v3 01/22] dt-bindings: host1x: Add iommu-map property

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Message-Id: <20220627142008.2072474-2-cyndis@kapsi.fi>
Date:   Mon, 27 Jun 2022 17:19:47 +0300
From:   Mikko Perttunen <cyndis@...si.fi>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Dmitry Osipenko <digetx@...il.com>
Cc:     Mikko Perttunen <mperttunen@...dia.com>,
        Robin Murphy <robin.murphy@....com>,
        Rob Herring <robh@...nel.org>, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v7/v3 01/22] dt-bindings: host1x: Add iommu-map property

From: Mikko Perttunen <mperttunen@...dia.com>

Add schema information for specifying context stream IDs. This uses
the standard iommu-map property.

Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
Reviewed-by: Robin Murphy <robin.murphy@....com>
Acked-by: Rob Herring <robh@...nel.org>
---
v3:
* New patch
v4:
* Remove memory-contexts subnode.
---
 .../bindings/display/tegra/nvidia,tegra20-host1x.yaml        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
index 4fd513efb0f7..0adeb03b9e3a 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
@@ -144,6 +144,11 @@ allOf:
         reset-names:
           maxItems: 1
 
+        iommu-map:
+          description: Specification of stream IDs available for memory context device
+            use. Should be a mapping of IDs 0..n to IOMMU entries corresponding to
+            usable stream IDs.
+
       required:
         - reg-names
 
-- 
2.36.1