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 <[email protected]>
raspberrypi · Oct 24, 2023 · f2a2f0d · f2a2f0d
1 parent d24c99a
commit f2a2f0d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/arch/arm/boot/dts/broadcom/bcm270x-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm270x-rpi.dtsi
@@ -1,7 +1,7 @@
 /* Downstream modifications to bcm2835-rpi.dtsi */
 
 / {
-	aliases {
+	aliases: aliases {
 		aux = &aux;
 		sound = &sound;
 		soc = &soc;
@@ -30,6 +30,9 @@
 		fb = &fb;
 		thermal = &thermal;
 		axiperf = &axiperf;
+		drm_fb0_vc4 = <&aliases>, "drm-fb0=",&vc4;
+		drm_fb1_vc4 = <&aliases>, "drm-fb1=",&vc4;
+		drm_fb2_vc4 = <&aliases>, "drm-fb2=",&vc4;
 	};
 
 	/* Define these notional regulators for use by overlays */