lvgl: Add hints about using configuration variables

Relate-to: https://github.com/lvgl/lvgl/issues/2534
Forwarded: https://github.com/openembedded/meta-openembedded/pull/479
Signed-off-by: Philippe Coval <philippe.coval@huawei.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/meta-oe/recipes-graphics/lvgl/lv-drivers_7.11.0.bb b/meta-oe/recipes-graphics/lvgl/lv-drivers_7.11.0.bb
index 750312844a..7e0a980d23 100644
--- a/meta-oe/recipes-graphics/lvgl/lv-drivers_7.11.0.bb
+++ b/meta-oe/recipes-graphics/lvgl/lv-drivers_7.11.0.bb
@@ -26,6 +26,9 @@ EXTRA_OECMAKE += "-Dinstall:BOOL=ON"
 TARGET_CFLAGS += "-DLV_CONF_INCLUDE_SIMPLE=1"
 TARGET_CFLAGS += "-I${RECIPE_SYSROOT}/${includedir}/lvgl"
 
+# Upstream does not support a default configuration
+# but propose a default "disabled" template, which is used as reference
+# More configuration can be done using external configuration variables
 do_configure:append() {
     [ -r "${S}/lv_drv_conf.h" ] \
         || sed -e "s|#if 0 .*Set it to \"1\" to enable the content.*|#if 1 // Enabled by ${PN}|g" \
diff --git a/meta-oe/recipes-graphics/lvgl/lvgl_8.0.3.bb b/meta-oe/recipes-graphics/lvgl/lvgl_8.0.3.bb
index 53ae7d90f9..0e0bd69420 100644
--- a/meta-oe/recipes-graphics/lvgl/lvgl_8.0.3.bb
+++ b/meta-oe/recipes-graphics/lvgl/lvgl_8.0.3.bb
@@ -23,6 +23,9 @@ EXTRA_OECMAKE += "-Dinstall:BOOL=ON"
 
 LVGL_CONFIG_LV_MEM_CUSTOM ?= "0"
 
+# Upstream does not support a default configuration
+# but propose a default "disabled" template, which is used as reference
+# More configuration can be done using external configuration variables
 do_configure:prepend() {
     [ -r "${S}/lv_conf.h" ] \
         || sed -e 's|#if 0 .*Set it to "1" to enable .*|#if 1 // Enabled|g' \