Re: Use xilinx video drivers in PCIe device

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Frank,

On Tuesday 02 February 2016 17:05:06 Franck Jullien wrote:
> Hi,
> 
> I need to use a Xilinx video infrastructure on a PCIe board.
> As far as I understand it, all Xilinx video drivers make use of the
> device-tree for configuration.

Correct. Those drivers target the Xilinx SoC FPGAs, no standalone FPGAs 
connected to an external CPU.

> However, my idea is to create a MFD device to bind video drivers. That
> would require Xilinx video drivers to check platform_data and continue
> with device tree configuration if it is null or use platform data if
> available.
> 
> Do you think such a change in Xilinx drivers can be considered
> upstream ? Is this the way to go ?

Your use case is certainly valid, so I'm certainly open to supporting it in 
the drivers.

I'm wondering whether your MFD decide driver could create a DT fragment to 
describe the IP cores topology. That way we could reuse the existing DT 
support in individual drivers.

-- 
Regards,

Laurent Pinchart