Fix up i.MX8MQ EVK configuration

Changes:
- Since linux-fslc-lts does not boot on the EVK at the moment,
  and both it and linux-fslc still do not have support for the
  HDMI output, switch back to using linux-fslc-imx with tweaks
  to use etnaviv as we did pre-kirkstone.
- A bbappend has been added for linux-fslc-lts since that was
  missed in a previous upgrade, and even though we are not using
  it now, it is possibly useful for other i.MX variants.
- A machine template for using the NXP BSP with the Vivante GPU
  driver, imx8mq-evk-viv, has been restored, as testing shows it
  now works with the current panel-less homescreens.  As before,
  the intent of this configuration is for testing or as an example
  of potential production use of meta-freescale where NXP support
  is available.
- Start up of Bluetooth support has been disabled, as it currently
  causes kernel oopses or panics (both have been seen in testing).
  This happens with both machine templates.  SPEC-4807 has been
  opened to track this issue.

Bug-AGL: SPEC-4799

Change-Id: I38e4e720643714541efb0fed08d5ab64545bb02d
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/28937
Tested-by: Jenkins Job builder account
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

3 files changed, 30 insertions, 27 deletions

diff --git a/meta-agl-bsp/conf/include/agl_imx8mq-evk-common.inc b/meta-agl-bsp/conf/include/agl_imx8mq-evk-common.inc
index ac7fc0edc..b3faadd0a 100644
--- a/meta-agl-bsp/conf/include/agl_imx8mq-evk-common.inc
+++ b/meta-agl-bsp/conf/include/agl_imx8mq-evk-common.inc
@@ -1,13 +1,8 @@
 require agl_imx-common.inc
 
-# Force use of the community supported LTS kernel instead of the
-# default linux-fslc
-IMX_DEFAULT_KERNEL:imx8mq-evk = "linux-fslc-lts"
-
-# For EVKB wifi support
-#MACHINE_FEATURES:append = " bcm4356"
-
 # Add helper to drive setting up HCI UART device
-MACHINE_EXTRA_RRECOMMENDS:append = " hci-uart-helper"
+# NOTE: Disabled 2023/05 due to kernel oops, further investigation
+#       required, see SPEC-4807 in JIRA.
+#MACHINE_EXTRA_RRECOMMENDS:append = " hci-uart-helper"
 
 AGL_DEFAULT_INITRAMFS_FSTYPES := ""
diff --git a/meta-agl-bsp/conf/include/agl_imx8mq-evk-viv.inc b/meta-agl-bsp/conf/include/agl_imx8mq-evk-viv.inc
new file mode 100644
index 000000000..3988fcd6f
--- /dev/null
+++ b/meta-agl-bsp/conf/include/agl_imx8mq-evk-viv.inc
@@ -0,0 +1,8 @@
+require agl_imx8mq-evk-common.inc
+
+IMX_DEFAULT_BSP = "nxp"
+
+# NOTE:
+# There is some potential benefit to using the community supported
+# linux-fslc-imx hybrid kernel here, but keeping the configuration
+# close to upstream to ease maintenance seems worthwhile.
diff --git a/meta-agl-bsp/conf/include/agl_imx8mq-evk.inc b/meta-agl-bsp/conf/include/agl_imx8mq-evk.inc
index d04ee41a7..620ee0fdd 100644
--- a/meta-agl-bsp/conf/include/agl_imx8mq-evk.inc
+++ b/meta-agl-bsp/conf/include/agl_imx8mq-evk.inc
@@ -1,23 +1,23 @@
-include agl_imx8mq-evk-common.inc
+require agl_imx8mq-evk-common.inc
 
-# NOTE: currently not using IMX_DEFAULT_BSP = "mainline", as it
-#       requires more changes than this approach of disabling
-#       Vivante.
+# NOTE:
+# Currently using the upstream default of IMX_DEFAULT_BSP = "mainline",
+# since we want to use the etnaviv driver and upstream Mesa + weston
+# stack.  More tweaks are required to accomplish that if the BSP is set
+# to "nxp".
 
-# Add our own over-ride for use in a few recipes where there is
-# conflicting Vivante vs etnaviv configuration.
-#MACHINEOVERRIDES .= ":etnaviv"
-
-# Knock out Vivante overrides
-#MACHINEOVERRIDES_EXTENDER:mx8mq:forcevariable = ""
-#PREFERRED_VERSION_weston_mx8 = "8.0.0"
-#PREFERRED_VERSION_wayland-protocols_mx8 = "1.20"
-#PREFERRED_VERSION_libdrm_mx8 = "2.4.101"
+# Force use of the community supported hybrid NXP/LTS kernel instead of
+# the default linux-fslc.  This is required to get the drivers required
+# for HDMI output.
+IMX_DEFAULT_KERNEL:imx8mq-evk = "linux-fslc-imx"
 
-#CORE_IMAGE_EXTRA_INSTALL += "libdrm-etnaviv"
+# Tweaks to allow using linux-fslc-imx on its own without the whole
+# NXP BSP.  Just the DISTROOVERRIDES change on its own is not enough,
+# as COMPATIBLE_MACHINE is evaluated early enough that the recipe is
+# not seen as compatible without an explicit override.
+COMPATIBLE_MACHINE:pn-linux-fslc-imx = "(imx8mq-evk)"
+DISTROOVERRIDES:pn-linux-fslc-imx:append = "mx8-nxp-bsp"
 
-#PREFERRED_VERSION_gstreamer1.0_mx8 = "1.16.3"
-#PREFERRED_VERSION_gstreamer1.0-plugins-base_mx8 = "1.16.3"
-#PREFERRED_VERSION_gstreamer1.0-plugins-good_mx8 = "1.16.3"
-#PREFERRED_VERSION_gstreamer1.0-plugins-bad_mx8 = "1.16.3"
-#PREFERRED_VERSION_gstreamer1.0-plugins-ugly_mx8 = "1.16.3"
+# Add our own over-ride for use in a few recipes where there is
+# conflicting Vivante vs etnaviv configuration.
+MACHINEOVERRIDES .= ":etnaviv"