From: "Maíra Canal" <mcanal@igalia.com>
To: Maxime Ripard <mripard@kernel.org>,
Dave Stevenson <dave.stevenson@raspberrypi.com>,
Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>,
Stefan Wahren <wahrenst@gmx.net>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Florian Fainelli <florian.fainelli@broadcom.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>
Cc: kernel-dev@igalia.com, dri-devel@lists.freedesktop.org,
devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
"Maíra Canal" <mcanal@igalia.com>
Subject: [PATCH 4/4] ARM: dts: bcm2835: Add the V3D reset line
Date: Sun, 16 Aug 2026 11:05:43 -0300 [thread overview]
Message-ID: <20260816-vc4-reset-control-v1-4-896444373716@igalia.com> (raw)
In-Reply-To: <20260816-vc4-reset-control-v1-0-896444373716@igalia.com>
The PM block exposes a reset line for the V3D block, which the vc4 driver
uses to reset the GPU when recovering from a hang instead of forcing its
power domain down. Wire it up in the shared V3D node, covering BCM2835,
BCM2836 and BCM2837.
BCM2711 already describes the same reset line for its V3D node.
Signed-off-by: Maíra Canal <mcanal@igalia.com>
---
arch/arm/boot/dts/broadcom/bcm2835-common.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/broadcom/bcm2835-common.dtsi b/arch/arm/boot/dts/broadcom/bcm2835-common.dtsi
index 1e76b290510d..39eea8ce1058 100644
--- a/arch/arm/boot/dts/broadcom/bcm2835-common.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2835-common.dtsi
@@ -139,6 +139,7 @@ v3d: v3d@7ec00000 {
compatible = "brcm,bcm2835-v3d";
reg = <0x7ec00000 0x1000>;
interrupts = <1 10>;
+ resets = <&pm BCM2835_RESET_V3D>;
};
};
--
2.55.0
next prev parent reply other threads:[~2026-08-16 14:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-16 14:05 [PATCH 0/4] drm/vc4: Reset the V3D block through the reset controller Maíra Canal
2026-08-16 14:05 ` [PATCH 1/4] drm/vc4: Drop the undocumented brcm,vc4-v3d compatible Maíra Canal
2026-08-18 9:07 ` Krzysztof Kozlowski
2026-08-16 14:05 ` [PATCH 2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line Maíra Canal
2026-08-16 20:20 ` Stefan Wahren
2026-08-18 9:05 ` Krzysztof Kozlowski
2026-08-18 10:35 ` Maíra Canal
2026-08-16 14:05 ` [PATCH 3/4] drm/vc4: Use the reset controller to recover from a GPU hang Maíra Canal
2026-08-16 14:05 ` Maíra Canal [this message]
2026-08-16 20:35 ` [PATCH 4/4] ARM: dts: bcm2835: Add the V3D reset line Stefan Wahren
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