From: Mikko Perttunen <mperttunen@nvidia.com>
To: Thierry Reding <thierry.reding@kernel.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
David Airlie <airlied@gmail.com>,
Simona Vetter <simona@ffwll.ch>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH v2 1/4] dt-bindings: display: tegra: Make non-vm registers optional
Date: Thu, 02 Jul 2026 13:10:26 +0900 [thread overview]
Message-ID: <20260702-host1x-nohv-v2-1-e6d88bac0af6@nvidia.com> (raw)
In-Reply-To: <20260702-host1x-nohv-v2-0-e6d88bac0af6@nvidia.com>
The hypervisor and common register regions are not always available to
the software -- usually when a separate hypervisor keeps ownership of
them and only passes through the vm register region to a virtual
machine.
Adjust the bindings to make these regions optional to allow describing
the situation in device trees for such virtual machines et cetera.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
.../display/tegra/nvidia,tegra20-host1x.yaml | 40 ++++++++++++++--------
1 file changed, 26 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
index 3563378a01af..ffd0ed857d28 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
@@ -145,14 +145,20 @@ allOf:
then:
properties:
reg-names:
- items:
- - const: hypervisor
- - const: vm
+ oneOf:
+ - items:
+ - const: hypervisor
+ - const: vm
+ - items:
+ - const: vm
reg:
- items:
- - description: region used by the hypervisor
- - description: region assigned to the virtual machine
+ oneOf:
+ - items:
+ - description: region used by the hypervisor
+ - description: region assigned to the virtual machine
+ - items:
+ - description: region assigned to the virtual machine
resets:
maxItems: 1
@@ -195,16 +201,22 @@ allOf:
then:
properties:
reg-names:
- items:
- - const: common
- - const: hypervisor
- - const: vm
+ oneOf:
+ - items:
+ - const: common
+ - const: hypervisor
+ - const: vm
+ - items:
+ - const: vm
reg:
- items:
- - description: region used by host1x server
- - description: region used by the hypervisor
- - description: region assigned to the virtual machine
+ oneOf:
+ - items:
+ - description: region used by host1x server
+ - description: region used by the hypervisor
+ - description: region assigned to the virtual machine
+ - items:
+ - description: region assigned to the virtual machine
interrupts:
items:
--
2.53.0
next prev parent reply other threads:[~2026-07-02 4:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-02 4:10 [PATCH v2 0/4] Support partitioned Host1x Mikko Perttunen
2026-07-02 4:10 ` Mikko Perttunen [this message]
2026-07-02 4:10 ` [PATCH v2 2/4] dt-bindings: display: tegra: Add channel/syncpoint range properties Mikko Perttunen
2026-07-02 4:10 ` [PATCH v2 3/4] gpu: host1x: Support running without hv/common registers Mikko Perttunen
2026-07-02 4:10 ` [PATCH v2 4/4] gpu: host1x: Allow limiting usable channel and syncpoint ranges Mikko Perttunen
2026-07-02 4:22 ` sashiko-bot
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