Hi Biju, On Thursday, 29 November 2018 10:39:00 EET Biju Das wrote: > > Subject: Re: Issue with enabling VSP source on rcar gen2 koelsch board > > On Wednesday, 28 November 2018 15:20:58 EET Biju Das wrote: > >> Hi all, > >> > >> On the past, I have tested vsp source on rcar gen2 koelsch board, > >> using the patches series below(Apart from the below patch series, I > >> have enabled "CONFIG_DRM_RCAR_VSP=y") > >> https://git.linuxtv.org/pinchartl/media.git/log/?h=drm/du/panels > >> > >> 1) [HACK] ARM: shmobile: r8a7791: Link the VSP1 and DU > >> 2) [HACK] v4l: vsp1: Disable UAPI for VSP1D > >> 3) [HACK] drm: rcar-du: Enable VSP source support for R8A7791 > >> > >> But on the latest renesas-dev branch looks like it is broken > > > > That doesn't surprise me too much as I don't actively maintain that code. > > > > For my information, what are your use cases ? Do you think this approach > > should be pursued and patches merged upstream ? The amount of work will > > be quite high though, given that it introduces a new userspace API, we > > will have to publish an open-source implementation in an X.org or Wayland > > driver. > > Basically as part of RZ-G1/M VSP upstreaming(Linux 4.15 kernel) ,previously > I have executed the below test cases > > 1) vsp test suite:- based on the instruction present on > "http://git.ideasonboard.com/renesas/vsp-tests.git"; > > 2) vspd testing:- based on the instruction present on > "https://git.linuxtv.org/pinchartl/media.git/log/?h=drm/du/panels"; > > Both the test cases were working fine with 4.15 kernel. > > Now as part of RZ/G1N vsp upstreaming, I rebased to latest branch from > renesas-dev , and executed the same test case > > Only test cases in vsp test suite is working. the vspd test case is broken. Could you please post the tests output and log ? > So I am wondering how do we expose the r-car gen2 SoC feature "VSPD" to > the end user? Isn't the VSPD already exposed to the user as a V4L2 device on Gen2 ? -- Regards, Laurent Pinchart
