Fix rpi touchscreen support on master

We seem to miss a few bits that changed between kernel 4.9 and kernel 4.14
regarding the 7'' touchscreen.

One addition is the rpi-backlight.dtbo which we also need to use in our create-combined-dtb
recipe for CI use.

We also seem to require https://github.com/raspberrypi/linux/pull/2693#issue-217750943 .

Thanks to Scott Murray for the help digging through this.

v2 and v3: add devicetree changes
v4 and v5: fix name of dtbo
v6: move append to machine include - we need it as a global var
v7: add to config.txt for sdcard boot case

Bug-AGL: SPEC-2465

Change-Id: I2bb3cd974b74a790292e1f36ffdca034928e0bca
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_%.bbappend b/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_%.bbappend
index 4271926e4..ffbf791e8 100644
--- a/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_%.bbappend
+++ b/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_%.bbappend
@@ -3,6 +3,15 @@ FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
 require recipes-kernel/linux/linux-agl.inc
 require recipes-kernel/linux/linux-agl-4.14.inc
 
+# ENABLE DSI
+# ported from https://github.com/k-quigley/linux
+SRC_URI_append = " \
+    file://dsi/0001-Add-devicetree-support-for-RaspberryPi-7-panel-over-.patch \
+    file://dsi/0002-drm-vc4-Make-DSI-call-into-the-bridge-after-the-DSI-.patch \
+    file://dsi/0003-drm-vc4-Set-up-the-DSI-host-at-pdev-probe-time-not-c.patch \
+    file://dsi/0004-drm-panel-Backport-4.15-support-for-the-Raspberry-Pi.patch \
+"
+
 # NOTE: Kprobes need to be disabled until linux-raspberrypi gets updated
 #       to newer than 4.14.104 to avoid lttng-modules failing to build.
 SRC_URI_append = "\