Re: [PATCH 2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line
flat view
From: Stefan Wahren <wahrenst@gmx.net>
Date: 2026-08-16 20:21:11
Also in:
dri-devel, linux-arm-kernel
Hi Maíra, Am 16.08.26 um 16:05 schrieb Maíra Canal:
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.not sure the last sentence is necessary for a DT binding. Except of this: Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
quoted hunk ↗ jump to hunk
Keep the property optional, as existing device trees do not describe it. Signed-off-by: Maíra Canal <mcanal@igalia.com> --- 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