From: Matthew Gerlach <matthew.gerlach@xxxxxxxxx> This patchset enhances the definition of the Device Feature Header (DFH) used by the Device Feature List (DFL) bus and then uses the new enhancements in a uart driver. Patch 1 updates the DFL documentation to provide the motivation behind the enhancements to the definition of the DFH. Patch 2 moves some of the DFH definitions to include/linux/dfl.h so that they can be accessed by drivers outside of drivers/fpga. Patch 3 adds the definitions for DFHv1. Patch 4 defines and uses a DFHv1 parameter to provide a generic mechanism for describing MSIX interrupts used by a particular feature instance. Patch 5 gets the location and size of the feature's register set from DFHv1. Patch 6 adds a DFL uart driver that makes use of the new features of DFHv1. Basheer Ahmed Muddebihal (2): fpga: dfl: Move the DFH definitions fpga: dfl: Add DFHv1 Register Definitions Matthew Gerlach (4): Documentation: fpga: dfl: Add documentation for DFHv1 fpga: dfl: add generic support for MSIX interrupts fpga: dfl: parse the location of the feature's registers from DFHv1 tty: serial: 8250: add DFL bus driver for Altera 16550. Documentation/fpga/dfl.rst | 49 ++++++++ drivers/fpga/dfl-afu-main.c | 4 +- drivers/fpga/dfl.c | 88 ++++++++++++-- drivers/fpga/dfl.h | 24 +--- drivers/tty/serial/8250/8250_dfl.c | 177 +++++++++++++++++++++++++++++ drivers/tty/serial/8250/Kconfig | 9 ++ drivers/tty/serial/8250/Makefile | 1 + include/linux/dfl.h | 79 ++++++++++++- 8 files changed, 402 insertions(+), 29 deletions(-) create mode 100644 drivers/tty/serial/8250/8250_dfl.c -- 2.25.1
