Re: [PATCH] media: i2c: vd55g1: fix VD55G0 streaming below 900 Mbps

[George Neacsu <geocausa@gmail.com>]

Hi Sergey,

On 16/10/2026 08:02, Sergey Lebedev wrote:
> So here, writing 0 there does not stop the output by itself. vd55g1
> writes it at every stream start instead, which may be the difference.

Thanks, you are right, and it is not the place either. I retested on the
Snapdragon model with the line length change applied and 0x0329 handled
three ways:

  ISL_ENABLE = 0 at every stream start (as in Peter's v2)   6/6 captures
  ISL_ENABLE = 0 once per power-on, after boot              2/2
  never written                                              2/2

All at 840 Mbps on one lane, 644x604 Y10, with real images in every run,
including a stream-start write on the first capture after loading the
module. 0x0329 reads 0x01 after power-on here too and 0x00 once
written.

The failure I based the ISL change on came from a debug build where the
line length was forced by a register write just before stream start
rather than coming from the driver, so it was not a clean test. I will
send a v2 with only the line length change.

Thanks,
George