Support for applying a device tree overlay to the barebox live tree is already present. This series adds a few missing pieces: - add support for applying overlays to the live tree from the command line - add support for adding new I2C/SPI devices via overlays - add Makefile magic to build dtbo files and dtbo.o files to include into the barebox binary from dtso files Changes since v2: - Don't build compressed dtbo files - Do not build overlays for PBL - rename symbols to __dtbo_ to avoid possible name clashes Changes since v1: - add a device_rescan() static inline wrapper - add missing call to of_i2c_register_devices() in i2c_add_numbered_adapter() - replace device_detect with device_rescan in of_device_create_on_demand() Sascha Hauer (7): kbuild: Add target to build dtb overlay files driver: Add rescan hook to struct device i2c: implement rescan spi: Directly register SPI device spi: reduce scope of 'chip' spi: implement rescan of_overlay: Add option to apply overlay to live tree commands/of_overlay.c | 38 ++++++++++++++++++++++++++++++++++---- drivers/i2c/i2c.c | 24 +++++++++--------------- drivers/of/platform.c | 12 +++++------- drivers/spi/spi.c | 29 ++++++++++++++++++++++++----- include/driver.h | 6 ++++++ scripts/Makefile.build | 2 ++ scripts/Makefile.lib | 10 +++++++++- scripts/gen-dtbo-s | 14 ++++++++++++++ 8 files changed, 103 insertions(+), 32 deletions(-) create mode 100755 scripts/gen-dtbo-s -- 2.30.2
