Some of the serial interfaces are exposed on the camera daughter board. The camera daughter board can be connected to the carrier board by means of expansion connectors 1, 2 and 3. The carrier board may host an RZ/G1M or an RZ/G1N based SoM. While adding support for the serial interfaces on the camera daughter board we faced the dilemma of how to properly describe all of the possible HW configurations and how to maximize code reuse. The best option would be to use device tree overlays, however there is still some work to be done on that front before actually using them, therefore for the time being we decided to provide .dtsi files to describe the carrier board and the camera daughter board, and provide .dts files to describe the HW configurations we need to support. Best regards, Fabrizio Castro (2): ARM: dts: iwg20d-q7: Rework DT architecture ARM: dts: iwg20d-q7-dbcm-ca: Add device trees for camera DB arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/iwg20d-q7-common.dtsi | 147 ++++++++++++++++++++++++ arch/arm/boot/dts/iwg20d-q7-dbcm-ca.dtsi | 43 +++++++ arch/arm/boot/dts/r8a7743-iwg20d-q7-dbcm-ca.dts | 19 +++ arch/arm/boot/dts/r8a7743-iwg20d-q7.dts | 139 +--------------------- 5 files changed, 212 insertions(+), 137 deletions(-) create mode 100644 arch/arm/boot/dts/iwg20d-q7-common.dtsi create mode 100644 arch/arm/boot/dts/iwg20d-q7-dbcm-ca.dtsi create mode 100644 arch/arm/boot/dts/r8a7743-iwg20d-q7-dbcm-ca.dts -- 2.7.4
