From eccaa8588fca9c9ec950664f1d5894bd826b57b0 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Mon, 23 Oct 2023 14:10:15 +0100
Subject: [PATCH] dt: Add drm_fbN_vc4 overrides for Pi0-4

Follows up '61b138adaead ("dt: Add overrides for drm framebuffer
allocations on Pi5")' with an equivalent for Pi0-4.

These will have no effect on most normal systems, but drm_fb0_vc4
will stop SPI displays jumping in and claiming /dev/fb0.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 arch/arm/boot/dts/bcm270x-rpi.dtsi | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/arch/arm/boot/dts/bcm270x-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm270x-rpi.dtsi
@@ -1,7 +1,7 @@
 /* Downstream modifications to bcm2835-rpi.dtsi */
 
 / {
-	aliases {
+	aliases: aliases {
 		aux = &aux;
 		sound = &sound;
 		soc = &soc;
@@ -98,6 +98,9 @@
 		sdio_overclock = <&mmc>,"brcm,overclock-50:0",
 				 <&mmcnr>,"brcm,overclock-50:0";
 		axiperf      = <&axiperf>,"status";
+		drm_fb0_vc4 = <&aliases>, "drm-fb0=",&vc4;
+		drm_fb1_vc4 = <&aliases>, "drm-fb1=",&vc4;
+		drm_fb2_vc4 = <&aliases>, "drm-fb2=",&vc4;
 	};
 };