technexion / linux-tn-imx Goto Github PK

How to reproduce:

Environment:

Board imx8mm pico pi: https://www.technexion.com/products/system-on-modules/evk/pico-pi-imx8m-mini/

Starting from Yocto BSP:

repo init -u https://github.com/TechNexion/tn-imx-yocto-manifest.git -b zeus_5.4.y-stable -m imx-5.4.70-2.3.0_2021Q4.xml

tx-imx-yocto-manigest is on commit 86721af835feb1e3ad9ed843c8708c128409acf8, at the time of this writing.
Kernel tag: tn-zeus_5.4.70-2.3.0_20211018

Step 1: run the system without wlan.ko:

Option 1: Add "init=/bin/sh" in Kernel boot args

Option 2: On a normally started system, login as root, then unload wlan.ko with commands:

systemctl stop connman
modprobe -r wlan

Actual result

system hang after few seconds.
The hang can be avoided the first time, by running "modprobe wlan" before the hang.
Note: further unloading/reloading wlan.ko seems to crash for other reasons.

Expected result

system should be usable even if the wlan.ko module is not loaded.
Ideally, wlan.ko unloading/reloading should work too.

When building Yocto 3.3 Hardknott from the Technexion BSP I get the following error:

Linux-tn-imx-5.10.72+gitAUTOINC+97258dd1dd-r0 do_fetch: Fetcher failure: Unable to find revision 97258dd in branch tn-imx_5.10.72_2.2.0-stable even from upstream.

I was previously able to source this commit without issue, now I cannot find it in the repository. Was this change backed out?

I attempted to change the Yocto recipe to point to the latest commit on the Stable branch, but bitbake failed with "ExpansionError during parsing meta-tn-imx-bsp/recipes-kernel/linx/linux-tn-imx_5.10.bb"

How can I resolve this issue?

Hi, I'm a PICO-IMX8MM user.
I'd like to use V4L2 controls with AR0522 camera module in our(company) project, but these features isn't merged yet in any stable releases.
I checked it is functional by cherry-picking, but we cannot use it because of our releasing policy.

When do you plan to release the next stable version?
I'd like to know milestone of releasing if you have.

As we saw there are already define UART3 in PICO-IMX8M-MINI device tree as below.
https://github.com/TechNexion/linux-tn-imx/blob/tn-imx_5.4.70_2.3.0-stable/arch/arm64/boot/dts/freescale/imx8mm-pico.dtsi#L457
May we double check can use below pins for UART port?
J7 for PICO-IMX8M-MINI back connector.
UART_TX / ECSPI1_MOSI / J7 57
UART_RX / ECSPI1_SCLK / J7 55
UART_RTS / ECSPI_SS0 / J7 53
UART_CTS / ECSPI_MISO / J7 59