Hi, On Fri, Sep 08, 2017 at 03:50:08PM +0800, Chen-Yu Tsai wrote: > Hi everyone, > > Previously I added support for two display pipelines for the sun4i-drm > driver. At the time we did not have support for downstream encoders to > actually test the second pipeline, nor having both pipelines active at > the same time. > > With HDMI encoder support now merged and support for it on sun6i in > progress, we are now able to test both pipelines being active at the > same time, with LCD output from one and HDMI from the other. Testing > has revealed some more issues, such as component probing order. Also, > we found out that muxing between the display backend and TCON was > possible, and required for the second pipeline to work as intended. > Last, the number of CRTCs provided to drm_vblank_init needs to be > increased for vblanks to work properly. > > This patch series does a few things: > > - Fix endpoint IDs so they conform to what the DT binding stipulates. > > - Change the order the individual components are queued up. > > - Fix how the TCON gets its ID when the backend-TCON mux is present. > > - Support the input mux in the TCON (which selects which backend to > use on the A31/A31s). > > - Fix the drm_vblank_init call and pass the correct number of crtcs. > > - Add the cross pipeline connections between the DRCs and TCONs on > the A31, conforming to the DT binding and what the hardware is > capable of. > > More details are available in each individual commit. Please have a look. I've applied all the commits, with: patch 1 in our arm-soc fixes branch patch 2-7 in drm-misc-next patch 8 in sunxi/dt-for-4.15. I have a minor comment on one patch that can be fixed in a followup patch, so please have a look at my other mail. Thanks for this great work, Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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