Re: [PATCH v2] driver: fpga: xilinx-selectmap: add csi and rdwr support

[Heiko Schocher <hs@nabladev.com>]

Hello Yilun,

On 23.07.26 06:42, Xu Yilun wrote:
> On Tue, Jul 21, 2026 at 01:42:52PM +0200, Heiko Schocher wrote:
>> Add csi_b and rdwr pin support for the xilinx,selectmap driver.
>>
>> In current driver the pins are configured from DTS and set to
>> GPIOD_OUT_HIGH. This works in case you have one FPGA.
>>
>> Extend this to really implement csi_b and rdwr pin function in
>> driver, so it works with more than one FPGA.
> 
> Please help specify in changelog: what do csi_b, rdwr pins do? Why they
> now work with one FPGA but not with 2 FPGAs? How do you select which FPGA
> to reprogram? thanks.

I will try to add this. You find some hint here:

Documentation/devicetree/bindings/fpga/xlnx,fpga-selectmap.yaml

Thanks!

bye,
Heiko
> 
> Thanks,
> Yilun
> 

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