[yocto] [meta-raspberrypi][PATCH 2/8] Support for vc4 graphics driver: add vc4-kms-v3d to the overlays

[Herve Jourdain]

This patch series enables the support for the VC4 graphics driver from Eric Anholt.
Add vc4-kms-v3d overlay if 'vc4graphics' is in MACHINE_FEATURES.
(This patch has a dependency on the patch that enables the support of .dtbo overlay files)

Signed-off-by: Herve Jourdain <herve.jourdain at neuf.fr>
---
 recipes-bsp/bootfiles/rpi-config_git.bb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/recipes-bsp/bootfiles/rpi-config_git.bb b/recipes-bsp/bootfiles/rpi-config_git.bb
index 4bc8eb7..79e436d 100644
--- a/recipes-bsp/bootfiles/rpi-config_git.bb
+++ b/recipes-bsp/bootfiles/rpi-config_git.bb
@@ -19,6 +19,8 @@ PITFT="${@bb.utils.contains("MACHINE_FEATURES", "pitft", "1", "0", d)}"
 PITFT22="${@bb.utils.contains("MACHINE_FEATURES", "pitft22", "1", "0", d)}"
 PITFT28r="${@bb.utils.contains("MACHINE_FEATURES", "pitft28r", "1", "0", d)}"
 
+VC4GRAPHICS="${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "1", "0", d)}"
+
 inherit deploy
 
 do_deploy() {
@@ -102,6 +104,12 @@ do_deploy() {
         echo "# Enable UART" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
         echo "enable_uart=1" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
     fi
+
+    # VC4 Graphics support
+    if [ "${VC4GRAPHICS}" = "1" ]; then
+        echo "# Enable VC4 Graphics" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+        echo "dtoverlay=vc4-kms-v3d,cma-256" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+    fi
 }
 
 addtask deploy before do_package after do_install
-- 
2.7.4