Mastodawn

NXP has published their 6.18-based kernel tree and while browsing it I have noticed that they apparently found a way to support custom horizontal strides with mxsfb (by using some undocumented leftover IP for EPDC panels that imx8mq doesn't support). This may be interesting as it potentially opens a way to use linear PE in #etnaviv with the #Librem5's internal screen, so the GPU could render directly to the scanout surface without having to resolve its tiled buffer to linear afterwards. #imx8mq

nieebel Feb 1, 2022

@claudiom cool article regarding #MNTReform!
https://arstechnica.com/gadgets/2022/01/review-mnt-reform-laptop-has-fully-open-hardware-and-software-for-better-or-worse/

I'm wondering what they mean with "simpler" when they talk about the #ARM based CPU/SoC #imx8mq.
I know #nxp as a good company, which supports the #opensource world and tries to make long lasting products. I think it's no coincidence that the same is used in #purism #librem5.

https://pad.hacc.space/green-hardware-ranking?view#Kodi--home-theater-pc-HTPC

Review: MNT Reform laptop has fully open hardware and software—for better or worse

Slow ARM CPU almost single-handedly derails an intriguing laptop experiment.

Ars Technica

Vagrant Cascadian Dec 19, 2021

Finally built a working #uboot package for the #mntreform using patches posted to u-boot a few days ago:

https://lists.denx.de/pipermail/u-boot/2021-December/469589.html

Unfortunately, it needs binary blobs for DDR initialization and for optional HDMI output from:

https://source.mnt.re/reform/reform-boundary-uboot

#atf (a.k.a. arm-trusted-firmware) for #iMX8MQ does not build successfully on #debian, so used a binary blob for that too.

Could be worse, could be better... it boots!

[PATCH v3 0/2] Add MNT Reform 2 board support

Guido Günther Feb 26, 2021

This is the jellyfish h264 demo on a #librem5 using the #imx8mq's #hantro VPU.

Using the CPU we take 300% of CPU time, using the VPU instead we take 10% (and even that can be optimized further). Using the VPU also saves ~1.5W of power. Thanks go to the #gstreamer and #linux kernel folks for making this possible!

Guido Günther Aug 29, 2020

@mntmn these NWL patches by Robert should make your DCSS hack to lower the input clock superfluous: https://lore.kernel.org/dri-devel/1598[email protected]/

#imx8mq #imx8

[PATCH 0/5] Add new features to nwl-dsi driver - Robert Chiras (OSS)

Show thread

Guido Günther Aug 17, 2020

@amosbatto #imx8mq CSI2 for mainliine is still being worked on (as is mhdp for DisplayPort HDMI) by various parties but the diff has become more and more reasonable.

Show thread

Guido Günther May 11, 2020

@mntmn Since I know the #imx8mq's performance from the #librem5 (and it's devkit) i'm not worried about Reform' s performance at all for daily / on the road usage. There's also so many improvements coming that can be done on the software side like #hantro video decoding.

Guido Günther Apr 21, 2020

The MIPI DSI host controller driver made it into linux-next: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=44cfc6233447cb2cf47aeb99457de35826a363f6 - more parts of the #librem5 's display stack are moving into place.

#linux #imx8mq

Review: MNT Reform laptop has fully open hardware and software—for better or worse

[PATCH v3 0/2] Add MNT Reform 2 board support

[PATCH 0/5] Add new features to nwl-dsi driver - Robert Chiras (OSS)

kernel/git/next/linux-next.git - The linux-next integration testing tree