pitft: Add basic support for PiTFT

Add basic support for PiTFT display by using device-trees.

In order get it working below configurations must be active in
local.conf:

MACHINE_FEATURES += "pitft"
 - This will enable SPI bus and i2c device-trees, it will also setup
   framebuffer for console and x server on PiTFT.

[Support #70]

Signed-off-by: Petter Mabäcker <petter@technux.se>
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>

2 files changed, 14 insertions, 2 deletions

diff --git a/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf b/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf
new file mode 100644
index 0000000..0d2b36b
--- /dev/null
+++ b/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-pitft.conf
@@ -0,0 +1,5 @@
+Section "Device"
+    Identifier "Adafruit PiTFT"
+    Driver "fbdev"
+    Option "fbdev" "/dev/fb1"
+EndSection
diff --git a/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend b/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend
index 2cf40f8..0ae2ee0 100644
--- a/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend
+++ b/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend
@@ -1,10 +1,17 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
 
-SRC_URI_append_rpi = " file://xorg.conf.d/10-evdev.conf "
+SRC_URI_append_rpi = " file://xorg.conf.d/10-evdev.conf \
+                       file://xorg.conf.d/99-pitft.conf \
+                     "
 
 do_install_append_rpi () {
         install -d ${D}/${sysconfdir}/X11/xorg.conf.d/
-        install -m 0644 ${WORKDIR}/xorg.conf.d/* ${D}/${sysconfdir}/X11/xorg.conf.d/
+        install -m 0644 ${WORKDIR}/xorg.conf.d/10-evdev.conf ${D}/${sysconfdir}/X11/xorg.conf.d/
+
+        PITFT="${@bb.utils.contains("MACHINE_FEATURES", "pitft", "1", "0", d)}"
+        if [ "${PITFT}" = "1" ]; then
+                install -m 0644 ${WORKDIR}/xorg.conf.d/99-pitft.conf ${D}/${sysconfdir}/X11/xorg.conf.d/
+        fi
 }
 
 FILES_${PN}_rpi += "${sysconfdir}/X11/xorg.conf ${sysconfdir}/X11/xorg.conf.d/*"