Re: [PATCH RFC v2 0/4] phy: qcom-mipi-csi2: C-PHY for X1E80100

[George Neacsu]

Hi Bryan,

On 16/10/2026 14:27, Bryan O'Donoghue wrote:
> The bit I'm a bit alarmed about is "stuff was stubbed" which makes me
> wonder if what lands in -next can then said to be actually verified
> meaningfully.
>
> Could you git rebase linux-stable/master for your 7.1.5 tree maybe ?

Rather than rebasing the 7.1.5 tree, I built next-20261015 itself and
booted it on the Surface Pro 11, with nothing stubbed. On top of it:
this series as v3 will post it, David's v9, the two CAMSS patches from
v1, and the sensor patches under review (IMX681 v8 with its C-PHY RFC,
OV13858 power-on v3 and its DT support). The board DT is out of tree and
follows your x1e80100 camera DT v7.

On that kernel:
- front IMX681 on CSIPHY2, one trio at 2.4 Gsym/s: 3844x2640 at
  30.01 fps, and the sensor's colour bars are byte-identical to the
  reference capture from the out-of-tree driver;
- rear OV13858 on CSIPHY1, four D-PHY lanes: 29.90 fps;
- the settle count reads back 0x1c in all three trio registers, which
  is the computed value.

The same boot also turned up a NULL dereference in the CAMSS TPG test
pattern control, unrelated to this series. I will send a fix for it
separately.

v3 will describe exactly this setup.

Thanks,
George