Hi Tim On Thu, Dec 9, 2021 at 5:40 PM Tim Harvey <tharvey@xxxxxxxxxxxxx> wrote: > > On Thu, Dec 9, 2021 at 12:36 AM Michael Nazzareno Trimarchi > <michael@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > Hi Tim > > > > On Tue, Oct 5, 2021 at 11:43 PM Tim Harvey <tharvey@xxxxxxxxxxxxx> wrote: > > > > > > On Sun, Jul 25, 2021 at 10:14 AM Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote: > > > > > > > > Hi Sam, > > > > > > > > On Sun, Jul 25, 2021 at 10:35 PM Sam Ravnborg <sam@xxxxxxxxxxxx> wrote: > > > > > > > > > > Hi Jagan, > > > > > > > > > > On Sun, Jul 04, 2021 at 02:32:13PM +0530, Jagan Teki wrote: > > > > > > This series supports common bridge support for Samsung MIPI DSIM > > > > > > which is used in Exynos and i.MX8MM SoC's. > > > > > > > > > > > > The final bridge supports both the Exynos and i.MX8MM DSI devices. > > > > > > > > > > > > Right now bridge offers two sets of implementations. > > > > > > > > > > > > A. With component_ops and exynos specific code exclusively for > > > > > > exynos dsi drivers and it's legacy bindings. > > > > > > > > > > > > B. Without componenet_ops for newly implemented bridges and its > > > > > > users like i.MX8MM. > > > > > > > > > > > > The future plan is to fix the implementation A) by dropping > > > > > > component_ops and fixing exynos specific code in order to make > > > > > > the bridge more mature to use and the same is mentioned in > > > > > > drivers TODO. > > > > > > > > > > > > Patch 0001 - 0006: Bridge conversion > > > > > > Patch 0007 - 0017: Samsung MIPI DSIM bridge fixes, additions > > > > > > > > > > > > Tested in Engicam i.Core MX8M Mini SoM. > > > > > > > > > > > > Anyone interest, please have a look on this repo > > > > > > https://github.com/openedev/linux/tree/070421-imx8mm-dsim > > > > > > > > > > > > Would appreciate anyone from the exynos team to test it on > > > > > > the exynos platform? > > > > > > > > > > > > Any inputs? > > > > > > > > > > I really like where you are headign with this! > > > > > No testing - sorry. But I will try to provide a bit of feedback on the > > > > > individual patches. > > > > > > > > > > I hope you find a way to move forward with this. > > > > > > > > Thanks for the response. > > > > > > > > We have found some issues with Bridge conversion on existing exynos > > > > drivers. The component based DSI drivers(like exynos) are difficult to > > > > attach if it involves kms hotplug. kms hotplug would require drm > > > > pointer and that pointer would only available after the bind call > > > > finishes. But the bridge attach in bind call will defer till it find > > > > the attached bridge. > > > > > > > > Right now I'm trying to find the proper way to attach the bridges for > > > > component based DSI drivers which involves kms hot-plug. > > > > > > > > If you have any ideas on this, please let me know. > > > > > > > > > > Jagan, > > > > > > How is your progress on this series? Looking at your repo it looks > > > like you've rebased on top of 5.13-rc3 in your 070121-imx8mm-dsim > > > branch but you've got a lot of things there that are likely not > > > related to this series? > > > > I have a bit of work on those patches and tested on imx8mn. Basically: > > > > - add the dsi timing calculation > > - change few difference with samsung bridge > > - fix crashes of my dsi panels > > - compare with NXP driver the final results > > > > I found that I have one problem that gives me some instability. In the > > NXP original driver the panel needs to be > > enabled in bridge_enable before out the standby. If I understand > > correctly, our standby should be done after. > > I would like to have some feedback and help and testing on other > > boards/devices and some suggestions on how to handle > > some of the differences. Another big problem is etnavi that is not stable > > > > Michael, > > Where can I find your patches? > I will push on some tree and share > What do you mean by etnaviv not being stable? > > I did some limited testing with etnaviv on imx8mm with 5.15 + dsi > patches on an Ubuntu focal root filesystem by: > apt update > apt install gnome-session gnome-terminal > ^^^ 2D hardware acceleration appears to be working (dragging opaque > windows around) > apt install mesa-utils glmark2 > glxgears > ^^^ ~160fps on IMX8MM > glmark2 > ^^^ score of 39 on IMX8MM > > I haven't seen any updates from Jagan since Nov 24 > (https://www.spinics.net/lists/dri-devel/msg324059.html) and am not > sure if he's been able to work through drm/exynos issues that have > been blocking his progress. I plan to push on github [17:07:42.315] Sending ready to systemd [ 214.052085] etnaviv-gpu 38000000.gpu: recover hung GPU! [ 214.595998] etnaviv-gpu 38000000.gpu: recover hung GPU! ** (maynard:386): WARNING **: 17:07:43.874: failed to setup mixer: Success [17:07:44.175] Added surface 0xaaab02630440, app_id (null) to pending list [17:07:44.176] Added surface 0xaaab026172b0, app_id (null) to pending list ** Message: 17:07:44.289: New advertisement app id maynard ** Message: 17:07:44.290: New advertisement app id maynard [17:07:45.171] (background) position view 0xaaab0261f860, x 0, y 0, on output DSI-1 [17:07:45.171] (panel) geom.width 100, geom.height 480, geom.x 0, geom.y 0 [17:07:45.171] (panel) edge 2 position view 0xaaab02634510, x 0, y 0 [17:07:45.172] panel type 2 inited on output DSI-1 [17:07:45.172] Usable area: 380x480+100,0 [ 216.932080] etnaviv-gpu 38000000.gpu: recover hung GPU! [ 217.476015] etnaviv-gpu 38000000.gpu: recover hung GPU! [ 218.020157] etnaviv-gpu 38000000.gpu: recover hung GPU! This is my problem on imx8mn Michael Michael > Best regards, > > Tim -- Michael Nazzareno Trimarchi Co-Founder & Chief Executive Officer M. +39 347 913 2170 michael@xxxxxxxxxxxxxxxxxxxx __________________________________ Amarula Solutions BV Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172 info@xxxxxxxxxxxxxxxxxxxx www.amarulasolutions.com
