From: Ettore Chimenti <ek5.chimenti@xxxxxxxxx> Hi all, Changes in v2: * Fixed a missing counter increment in the probe function. Here's the patch for the SECO CEC driver for MAC-based Boards. The boards have a Microchip MEC microcontroller as a general-purpose Embedded Controller, and they communicate through a mailbox interface. The EC used is more powerful and enables management of several CEC lines at once (up to 4). The focus is on Intel-based SBC-D61 board and UDOO Vision (SBC-D02) in this version, as the UDOO BOLT firmware implementation is still ongoing. Moreover, there is no CEC Notifier functionality inside amdgpu yet. Similarly to the previous implementation, there are several commands that can be issued, like WRITE and READ commands for sending and receiving CEC messages. The retrieval and send confirmation are triggered by a single GPIO interrupt connected directly to the SoC. After every STATUS command, the MEC returns a data struct with all the channels status, and it automatically clears the interrupt state afterwards. In this implementation, the driver sends also the physical address to the EC. This way it is possible to wake up the board upon receiving an SET_STREAM_PATH with the matching physical address when the CPU is in S3 or S5 (depending on BIOS settings). The only time that it seems to be already set is in the LA assignment (in the .enable callback it is not set yet). Best Regards, Ettore Ettore Chimenti (2): media: cec: add SECO MEC-based cec driver media: cec: seco: add newlines in debug messages MAINTAINERS | 2 + drivers/media/cec/platform/Kconfig | 22 +- drivers/media/cec/platform/seco/Makefile | 3 +- drivers/media/cec/platform/seco/seco-cec.c | 54 +- drivers/media/cec/platform/seco/seco-meccec.c | 824 ++++++++++++++++++ drivers/media/cec/platform/seco/seco-meccec.h | 130 +++ 6 files changed, 1005 insertions(+), 30 deletions(-) create mode 100644 drivers/media/cec/platform/seco/seco-meccec.c create mode 100644 drivers/media/cec/platform/seco/seco-meccec.h -- 2.17.1
