Re: [PATCH v23 10/15] media: qcom: camss: vfe: Add support for VFE 1080
From: Nihal Kumar Gupta
Date: Fri Oct 30 2026 - 13:02:22 EST
On 28-10-2026 20:50, Hangxiang Ma wrote:
> Add support for the VFE (Video Front End) 1080 found on Kaanapali SoC.
>
> In the Kaanapali camera subsystem, the front-end blocks are referred to
> as TFEs (Thin Front Ends). This driver continues to use the VFE naming
> in some places to preserve consistency with the existing code and avoid
> unnecessary renaming. Support is currently limited to three output lines,
> matching the constraints of the CAMSS framework.
>
> Kaanapali requires REG_UPDATE and AUP_UPDATE to be issued only after all
> CSID configuration has completed. In addition, the number of AUP_UPDATE
> requests must match the number of buffers queued to the write master
> while it is being enabled.
>
> Although real-time TFE traffic is routed through RT_CAMNOC, both
> camnoc_rt_axi and camnoc_nrt_axi clocks must be enabled. This ensures
> that the PDX_NOC, which sits downstream of both RT and NRT NOCs, exits
> reset in a fully idle state.
>
> Co-developed-by: Atiya Kailany <atiya.kailany@xxxxxxxxxxxxxxxx>
> Signed-off-by: Atiya Kailany <atiya.kailany@xxxxxxxxxxxxxxxx>
> Signed-off-by: Hangxiang Ma <hangxiang.ma@xxxxxxxxxxxxxxxx>
Tested-by: Nihal Kumar Gupta <nihal.gupta@xxxxxxxxxxxxxxxx> #Kaanapali MTP
--
Regards,
Nihal Kumar Gupta