From: Hans Verkuil <hans.verkuil@xxxxxxxxx> This patch series adds CEC support for the sun4i HDMI controller. The CEC hardware support for the A10 is very low-level as it just controls the CEC pin. Since I also wanted to support GPIO-based CEC hardware most of this patch series is in the CEC framework to add a generic low-level CEC pin framework. It is only the final patch that adds the sun4i support. This patch series first makes some small changes in the CEC framework (patches 1-4) to prepare for this CEC pin support. Patch 5-7 adds the new API elements and documents it. Patch 6 reworks the CEC core event handling. Patch 8 adds pin monitoring support (allows userspace to see all CEC pin transitions as they happen). Patch 9 adds the core cec-pin implementation that translates low-level pin transitions into valid CEC messages. Basically this does what any SoC with a proper CEC hardware implementation does. Patch 10 documents the cec-pin kAPI (and also the cec-notifier kAPI which was missing). Finally patch 11 adds the actual sun4i_hdmi CEC implementation. I tested this on my cubieboard. There were no errors at all after 126264 calls of 'cec-ctl --give-device-vendor-id' while at the same time running a 'make -j4' of the v4l-utils git repository and doing a continuous scp to create network traffic. This patch series is based on top of the mainline kernel as of yesterday (so with all the sun4i and cec patches for 4.13 merged). Maxime, patches 1-10 will go through the media subsystem. How do you want to handle the final patch? It can either go through the media subsystem as well, or you can sit on it and handle this yourself during the 4.14 merge window. Another option is to separate the Kconfig change into its own patch. That way you can merge the code changes and only have to handle the Kconfig patch as a final change during the merge window. Regards, Hans Hans Verkuil (11): cec: improve transmit timeout logging cec: add *_ts variants for transmit_done/received_msg cec: add adap_free op cec-core.rst: document the adap_free callback linux/cec.h: add pin monitoring API support cec: rework the cec event handling cec: document the new CEC pin capability, events and mode cec: add core support for low-level CEC pin monitoring cec-pin: add low-level pin hardware support cec-core.rst: include cec-pin.h and cec-notifier.h sun4i_hdmi: add CEC support Documentation/media/kapi/cec-core.rst | 40 ++ .../media/uapi/cec/cec-ioc-adap-g-caps.rst | 7 + Documentation/media/uapi/cec/cec-ioc-dqevent.rst | 20 + Documentation/media/uapi/cec/cec-ioc-g-mode.rst | 19 +- drivers/gpu/drm/sun4i/Kconfig | 9 + drivers/gpu/drm/sun4i/sun4i_hdmi.h | 8 + drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 57 +- drivers/media/Kconfig | 3 + drivers/media/cec/Makefile | 4 + drivers/media/cec/cec-adap.c | 196 +++-- drivers/media/cec/cec-api.c | 73 +- drivers/media/cec/cec-core.c | 2 + drivers/media/cec/cec-pin.c | 794 +++++++++++++++++++++ include/media/cec-pin.h | 183 +++++ include/media/cec.h | 64 +- include/uapi/linux/cec.h | 8 +- 16 files changed, 1389 insertions(+), 98 deletions(-) create mode 100644 drivers/media/cec/cec-pin.c create mode 100644 include/media/cec-pin.h -- 2.11.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
