Hi Sudeep/Lorenzo,
this series of 4 patches (maybe you have even queued the first patch) will switch the Versatile Express over to using the new PL111 DRM driver instead of the old fbdev driver.
There are both DTS updates and defconfig updates. Surely too late for v4.18 but should be fine for v4.19 (I will likely remind you if you forget it after v4.18-rc1.) The defconfig and DTS need to changed in lockstep, but usually the ARM SoC maintainers want them as two separate pull requests anyway.
I think this could be quite useful, hopefully enabling things such as the generic Android and Chromium DRM hwcomposer: https://memcpy.io/android-enabling-mainline-graphics.html the improvement will be most drastic on the CA0 Versatile Express as this has only PL111 graphics on the core tile, but the fallback PL111 on the motherboard is also working for all models now.
We are using CMA and CMA DMA buffers with existing DT bindings to hammer the system down to use the assigned special memory when we use the PL111 on the motherboard.
Please queue this in your Versatile Express tree.
To complete the transition for PL111 DRM for all ARM reference designs only Integrator/CP remains because of the special RGBA 5551 mode, but I will fix that too, hopefully also in time for kernel v4.19.
The QEMU system emulator model for Versatile Express has been patched to certainly cope with these new changes as well: https://git.qemu.org/?p=qemu.git;a=commit;h=0b72476810a83de270194b1de65027e4...
Linus Walleij (4): ARM: dts: Restructure Vexpress motherboard includes ARM: dts: Modernize the Vexpress PL111 integration ARM: defconfig: Update the vexpress defconfig ARM: defconfig: Enable the PL111 DRM driver on vexpress
arch/arm/boot/dts/vexpress-v2m-rs1.dtsi | 692 +++++++++--------- arch/arm/boot/dts/vexpress-v2m.dtsi | 691 +++++++++-------- arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts | 17 +- arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 19 +- arch/arm/boot/dts/vexpress-v2p-ca5s.dts | 19 +- arch/arm/boot/dts/vexpress-v2p-ca9.dts | 46 +- arch/arm/configs/vexpress_defconfig | 24 +- arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts | 14 + .../boot/dts/arm/rtsm_ve-motherboard.dtsi | 37 +- .../boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts | 5 +- 10 files changed, 773 insertions(+), 791 deletions(-)