Re: [PATCH RFC 2/2] media: i2c: imx681: Add C-PHY support

From: George Neacsu

Date: Fri Oct 16 2026 - 18:25:43 EST


Hi Sergey,

On 16/10/2026 22:14, Sergey Lebedev wrote:
> Either way it does not show C-PHY here; your reading on the Snapdragon
> model will tell whether the two differ.

They do not. Read on the Snapdragon model while the sensor streamed
3844x2640 at 30 fps over one C-PHY trio (linux-next with the PHY
series):

0x0016/0x0017 = 0x06 0x81 (model 0x0681)
0x0111 = 0x03 (CSI_SIGNALING_MODE, as written)
0x0114 = 0x00 (CSI_LANE_MODE, as written)
0x1600 = 0xff, 0x1601 = 0x03, 0x1602 = 0x04, 0x1603 = 0x01

So 0x1602 reports D-PHY only even while the part is transmitting C-PHY,
the same values as on the Intel model. The capability block cannot
confirm the mode on this sensor either way, so I will leave it out of
the evidence in the commit message and say why.

Thanks for reading it on your side.

George