Re: [PATCH v4 2/2] phy: qcom-mipi-csi2: Add a CSI2 MIPI DPHY driver

[Bryan O'Donoghue]

On 19/03/2026 13:08, Vladimir Zapolskiy wrote:
> > Why do you want a media driver? Isn't PHY driver enough?
> As for today CAMSS CSIPHY are already media devices, and a user applies media
> specific properties to them, for instance media bus format, resolution etc.
> Technically this might be removed from CAMSS, but if so, then it should be
> done before this new PHY driver model is applied.
>
> --
> Best wishes,

There's no reason to remove that from CAMSS - it would be an ABI break 
in user-space anyway.

The media entity in CAMSS msm_csiphyX handles format negotiation and 
pipeline routing. The PHY driver handles electrical configuration. They 
don't conflict and there multiple cited examples of this upstream already.

--
bod