[PATCH 2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line
Maíra Canal <[email protected]>
| Newsgroups | org.kernel.vger.linux-devicetree,org.freedesktop.lists.dri-devel,org.infradead.lists.linux-arm-kernel |
|---|---|
| Message-ID | <[email protected]> |
The BCM2835 PM block has exposed a reset line for the V3D block since
commit 670c672608a1 ("soc: bcm: bcm2835-pm: Add support for power domains
under a new binding."), which allows the GPU to be reset without
power-cycling its domain. Document it so that the vc4 driver can use it to
recover from a GPU hang.
Keep the property optional, as existing device trees do not describe it.
Signed-off-by: Maíra Canal <[email protected]>
---
Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
index c55a8217de25..1063e686647c 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
@@ -27,6 +27,9 @@ properties:
power-domains:
maxItems: 1
+ resets:
+ maxItems: 1
+
required:
- compatible
- reg
--
2.55.0