[yocto] [meta-raspberrypi][PATCH 2/3] raspberrypi3-64: Use vc4-fkms-v3d overlay for rpi64

[Khem Raj]

Use correct overlay for enabled vc4 accelaration
This enable 3D accelaration over dispmanx on vc4/rpi64
Enable audio over HDMI
Disable overscan to avoid graphics glitches

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 conf/machine/raspberrypi3-64.conf       |  1 +
 recipes-bsp/bootfiles/rpi-config_git.bb | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/conf/machine/raspberrypi3-64.conf b/conf/machine/raspberrypi3-64.conf
index e3d11f2..237684a 100644
--- a/conf/machine/raspberrypi3-64.conf
+++ b/conf/machine/raspberrypi3-64.conf
@@ -31,6 +31,7 @@ KERNEL_DEVICETREE = " \
     overlays/pi3-disable-bt.dtbo \
     overlays/pi3-miniuart-bt.dtbo \
     overlays/vc4-kms-v3d.dtbo \
+    overlays/vc4-fkms-v3d.dtbo \
     "
 
 SERIAL_CONSOLE ?= "115200 ttyS0"
diff --git a/recipes-bsp/bootfiles/rpi-config_git.bb b/recipes-bsp/bootfiles/rpi-config_git.bb
index 38a1237..4353061 100644
--- a/recipes-bsp/bootfiles/rpi-config_git.bb
+++ b/recipes-bsp/bootfiles/rpi-config_git.bb
@@ -21,7 +21,8 @@ PITFT28r="${@bb.utils.contains("MACHINE_FEATURES", "pitft28r", "1", "0", d)}"
 PITFT35r="${@bb.utils.contains("MACHINE_FEATURES", "pitft35r", "1", "0", d)}"
 
 VC4GRAPHICS="${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "1", "0", d)}"
-
+VC4DTBO_raspberrypi3-64 = "vc4-fkms-v3d"
+VC4DTBO ?= "vc4-kms-v3d"
 inherit deploy
 
 do_deploy() {
@@ -114,7 +115,7 @@ do_deploy() {
     # VC4 Graphics support
     if [ "${VC4GRAPHICS}" = "1" ]; then
         echo "# Enable VC4 Graphics" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
-        echo "dtoverlay=vc4-kms-v3d,${VC4_CMA_SIZE}" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+        echo "dtoverlay=${VC4DTBO},${VC4_CMA_SIZE}" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
     fi
 
     # Waveshare "C" 1024x600 7" Rev2.1 IPS capacitive touch (http://www.waveshare.com/7inch-HDMI-LCD-C.htm)
@@ -129,6 +130,15 @@ do_deploy() {
 }
 
 do_deploy_append_raspberrypi3-64() {
+    echo "# have a properly sized image" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+    echo "disable_overscan=1" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+
+    echo "# for sound over HDMI" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+    echo "hdmi_drive=2" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+
+    echo "# Enable audio (loads snd_bcm2835)" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+    echo "dtparam=audio=on" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+
     # Device Tree support
     echo "# Load correct Device Tree for Aarch64" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
     echo "device_tree=bcm2710-rpi-3-b.dtb" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
-- 
2.14.1