openwrt/target/linux/bcm27xx/patches-5.10/950-0478-dt-Add-option-for-dpi-without-DE-and-PCLK-for-VGA666.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-08-21 19:07:07 +02:00

31 lines
903 B
Diff

From dad204699d870a86849a635ebec84f3259923a0e Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 4 Feb 2021 14:23:58 +0000
Subject: [PATCH] dt: Add option for dpi without DE and PCLK (for
VGA666)
VGA666 doesn't use the DE or PCLK signals, therefore there is
no point in claiming their use. It's also then possible to
use GPIOs 0&1 for DDC to read the EDID from the display.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
arch/arm/boot/dts/bcm270x.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
--- a/arch/arm/boot/dts/bcm270x.dtsi
+++ b/arch/arm/boot/dts/bcm270x.dtsi
@@ -170,6 +170,12 @@
20 21>;
brcm,function = <BCM2835_FSEL_ALT2>;
};
+ dpi_18bit_gpio2: dpi_18bit_gpio2 {
+ brcm,pins = <2 3 4 5 6 7 8 9 10 11
+ 12 13 14 15 16 17 18 19
+ 20 21>;
+ brcm,function = <BCM2835_FSEL_ALT2>;
+ };
};
&uart0 {