Re: [PATCH 2/2] phy: qcom-mipi-csi2: Add a CSI2 MIPI D-PHY driver

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 7/14/25 5:17 PM, Bryan O'Donoghue wrote:
> On 14/07/2025 15:58, Vladimir Zapolskiy wrote:
>>
>> This proposed device node scheme does not solve the known and already
>> discussed technical issue expectedly, namely there is no given way
>> to describe a combo mode hardware configuration, when two independant
>> sensors are wired to the same CSIPHY. This is an unsolvable problem
>> with this design.
> 
> I think that is genuinely something we should handle in camss-csid.c maybe with some meta-data inside of the ports/endpoints..
> 
>>
>> Sensors are conneced to CSIPHY IP blocks, CSIPHY is connected to CSID.
> My understanding of best practice is data-endpoints go into the consumer not the PHY.

At least in the case of USB, the PHY's of_graph includes signals that go
through said PHY (so HS for HS phys, RXTX for SS PHYs)

Konrad

> 
> These are PHYs with their own SoC pins and voltage rails. They should look like other PHYs in qcom and across DT, IMO.
> 
> ---
> bod
>