This series adds a new i3c controller driver, for the ASPEED AST2600 i3c SoC peripheral. This device is very similar to the dw i3c controller, so we implement this by adding a little platform abstraction to the dw driver, and then a platform implementation for ast2600. For those testing at home: there's a couple of prereqs for getting this running: we need the ast2600 i3c clocks in their proper configuration, as implemented in: https://lore.kernel.org/all/20230302005834.13171-1-jk@xxxxxxxxxxxxxxxxxxxx/ - this series has been merged to clk-next, but has not hit Linus' upstream yet. The series will still build fine without this. You'll also want the dts definitions for the i3c controller and pincontrol setup on the ast2600 platform. I have changes for those in my dev/i3c branch: https://github.com/CodeConstruct/linux/commits/dev/i3c - and will send those once we have the driver accepted. v3: expand the prereqs & background above, and implement some feedback from review. Mainly: rather that using a platform_data pointer, assume platforms will use an encapsulating struct for their platform-specific data v2: This is a rework from an earlier series that implemented this as part of the dw driver; I have adopted Ben Dooks' suggestion to split into a new driver + exported hooks from the dw base. As always: comments, queries etc. are most welcome. Cheers, Jeremy Jeremy Kerr (3): i3c: dw: Add infrastructure for platform-specific implementations dt-bindings: i3c: Add AST2600 i3c controller i3c: ast2600: Add AST2600 platform-specific driver .../bindings/i3c/aspeed,ast2600-i3c.yaml | 72 ++++++++ MAINTAINERS | 6 + drivers/i3c/master/Kconfig | 14 ++ drivers/i3c/master/Makefile | 1 + drivers/i3c/master/ast2600-i3c-master.c | 168 ++++++++++++++++++ drivers/i3c/master/dw-i3c-master.c | 76 ++++---- drivers/i3c/master/dw-i3c-master.h | 54 ++++++ 7 files changed, 358 insertions(+), 33 deletions(-) create mode 100644 Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml create mode 100644 drivers/i3c/master/ast2600-i3c-master.c create mode 100644 drivers/i3c/master/dw-i3c-master.h -- 2.39.1