On 27.04.21 16:28, Fabio Estevam wrote:
Hi Frieder,
On Tue, Apr 27, 2021 at 11:15 AM Frieder Schrempf
<frieder.schrempf@xxxxxxxxxx> wrote:
You're welcome!
Just a question: What issue do you see without Steve's patch?
Without Steve's patch, I see the captured image slowly scrolling
vertically, like an old tube TV.
Once I apply it, the image becomes stable. The board I am currently
using is based on an imx6dl and the ADV7180 is connected to the
parallel CSI bus.
I'm asking because with my setup with the imx7 CSI driver I'm getting a
stable image, but it has a vertical and horizontal offset that seems to
vary each time I enable the camera. I was wondering if this is maybe
caused by the missing frame skipping.
Yes, maybe the imx7 CSI driver needs this initial frame skipping mechanism too.
But still I'm not really sure if we can compare this as I needed another
patch for the adv7180 driver to get it working with the i.MX8MM in the
first place:
https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.kontron-electronics.de%2Flinux%2Flinux%2F-%2Fcommit%2F0d90331a44d0f718b7327a94fc72612ddcb4ac0f&data=04%7C01%7Cfrieder.schrempf%40kontron.de%7Ce015a3d00b6f4c26745b08d90988c0e2%7C8c9d3c973fd941c8a2b1646f3942daf1%7C0%7C0%7C637551305224798164%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=c2W1OlaTvbjBDxkbVvJJtgPCRnsi7sCIA1QgiF9nZEM%3D&reserved=0.
Thanks for sharing your git tree.
In the next days, I will work on a different imx6dl board, with the
adv7180 connected to the MIPI CSI2.
I see your tree contains some adv7180-m related patches. I will give
it a try and report.
Ah, I forgot that your setup uses the CSI interface and not MIPI CSI2.
So it's indeed somewhat difficult to compare on that level.
