Hi, xilinx is using this interface for very long time and we can't merge our driver changes to Linux because of missing communication layer with firmware. This interface was developed before scpi and scmi was available. In connection to power management scpi and scmi are missing pieces which we already use. There is a separate discussion how to extend scmi to support all our use cases. This simply patch is not adding any power management features but only adding minimum functionality which are needed for drivers. Thanks, Michal Michal Simek (1): soc: xilinx: zynqmp: Add firmware interface Soren Brinkmann (2): dt: xilinx: zynqmp: Add bindings for PM firmware arm64: zynqmp: dt: Add PM firmware node .../bindings/soc/xilinx/xlnx,zynqmp-pm.txt | 19 + arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 7 + drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/xilinx/Kconfig | 6 + drivers/soc/xilinx/zynqmp/Makefile | 1 + drivers/soc/xilinx/zynqmp/firmware.c | 419 +++++++++++++++++++++ include/linux/soc/xilinx/zynqmp/firmware.h | 246 ++++++++++++ 8 files changed, 700 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-pm.txt create mode 100644 drivers/soc/xilinx/Kconfig create mode 100644 drivers/soc/xilinx/zynqmp/Makefile create mode 100644 drivers/soc/xilinx/zynqmp/firmware.c create mode 100644 include/linux/soc/xilinx/zynqmp/firmware.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html