On Tue, Jul 11, 2017 at 08:30:33AM +0200, Hans Verkuil wrote: > 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). For the whole serie: Reviewed-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> > 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. We'll probably have a number of reworks for 4.14, so it would be better if I merged it. However, I guess if we just switch to a depends on CEC_PIN instead of a select, everything would just work even if we merge your patches in a separate tree, right? Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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