MikroBUS is an open standard developed by MikroElektronika for connecting add-on boards to microcontrollers or microprocessors. It essentially allows you to easily expand the functionality of your main boards using these add-on boards.
This patchset adds mikroBUS as a Linux bus type and provides a driver to parse, and flash mikroBUS manifest and register the mikroBUS board.
The v1 and v2 of this patchset was submitted by Vaishnav M A back in 2020. This patchset also includes changes made over the years as part of BeagleBoards kernel.
Link: https://www.mikroe.com/mikrobus Link: https://docs.beagleboard.org/latest/boards/beagleplay/ Link: https://lore.kernel.org/lkml/20200818124815.11029-1-vaishnav@beagleboard.org... Patch v2
Changes in v3: - Use phandle instead of busname for spi - Use spi board info for registering new device - Convert dt bindings to yaml - Add support for clickID - Code cleanup and style changes - Additions required to spi, serdev, w1 and regulator subsystems
Changes in v2: - support for adding mikroBUS ports from DT overlays, - remove debug sysFS interface for adding mikrobus ports, - consider extended pin usage/deviations from mikrobus standard specifications - use greybus CPort protocol enum instead of new protocol enums - Fix cases of wrong indentation, ignoring return values, freeing allocated resources in case of errors and other style suggestions in v1 review.
Ayush Singh (7): dt-bindings: misc: Add mikrobus-connector w1: Add w1_find_master_device spi: Make of_find_spi_controller_by_node() available regulator: fixed-helper: export regulator_register_always_on greybus: Add mikroBUS manifest types mikrobus: Add mikrobus driver dts: ti: k3-am625-beagleplay: Add mikroBUS
Vaishnav M A (1): serdev: add of_ helper to get serdev controller
.../bindings/misc/mikrobus-connector.yaml | 110 ++ MAINTAINERS | 7 + .../arm64/boot/dts/ti/k3-am625-beagleplay.dts | 76 +- drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/mikrobus/Kconfig | 19 + drivers/misc/mikrobus/Makefile | 6 + drivers/misc/mikrobus/mikrobus_core.c | 942 ++++++++++++++++++ drivers/misc/mikrobus/mikrobus_core.h | 201 ++++ drivers/misc/mikrobus/mikrobus_id.c | 229 +++++ drivers/misc/mikrobus/mikrobus_manifest.c | 502 ++++++++++ drivers/misc/mikrobus/mikrobus_manifest.h | 20 + drivers/regulator/fixed-helper.c | 1 + drivers/spi/spi.c | 206 ++-- drivers/tty/serdev/core.c | 19 + drivers/w1/w1.c | 6 +- drivers/w1/w1_int.c | 27 + include/linux/greybus/greybus_manifest.h | 49 + include/linux/serdev.h | 4 + include/linux/spi/spi.h | 4 + include/linux/w1.h | 1 + 21 files changed, 2318 insertions(+), 113 deletions(-) create mode 100644 Documentation/devicetree/bindings/misc/mikrobus-connector.yaml create mode 100644 drivers/misc/mikrobus/Kconfig create mode 100644 drivers/misc/mikrobus/Makefile create mode 100644 drivers/misc/mikrobus/mikrobus_core.c create mode 100644 drivers/misc/mikrobus/mikrobus_core.h create mode 100644 drivers/misc/mikrobus/mikrobus_id.c create mode 100644 drivers/misc/mikrobus/mikrobus_manifest.c create mode 100644 drivers/misc/mikrobus/mikrobus_manifest.h
base-commit: 61996c073c9b070922ad3a36c981ca6ddbea19a5