On Wed, Apr 27, 2022 at 02:52:42PM -0400, Detlev Casanova wrote: > This commit adds an option to compile all device trees with -@ to add the > symbol table to the Device Tree Blobs. Why would we want to tie this to the kernel config? Globally enabling it has already been discussed and rejected. > It prepares the introduction of device tree overlays that are > not applied on device trees at compile time (dtbo files.) > > These device tree overlays will be used by either a bootloader or a > linux userspace tool to extend the base device tree. > > This is used e.g. for drivers that need device tree nodes for optional > non plug and play devices, like an external DSI touchscreen panel that > embeds different i2c devices to control it. You can already set DTC_FLAGS per directory (and target?), so enable it for the dtbs that have overlays. > > Signed-off-by: Detlev Casanova <detlev.casanova@xxxxxxxxxxxxx> > --- > drivers/of/Kconfig | 8 ++++++++ > scripts/Makefile.lib | 9 +++++++-- > 2 files changed, 15 insertions(+), 2 deletions(-)
