Re: [PATCH 0/3] omap-gpmc wait pin additions

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On 01/09/2022 15:41, B. Niedermayr wrote:
> From: Benedikt Niedermayr <benedikt.niedermayr@xxxxxxxxxxx>
> 
> There is currently no possibility for the gpmc to set either the
> waitp-pin polarity or use the same wait-pin for different cs-regions.
> 
> While the current implementation may fullfill most usecases, it may not
> be sufficient for more complex setups (e.g. FPGA/ASIC interfaces), where 
> more complex interfacing options where possible.
> 
> For example interfacing an ASIC which offers multiple cs-regions but
> only one waitpin the current driver and dt-bindings are not sufficient.
> 
> While using the same waitpin for different cs-regions worked for older
> kernels (4.14) the omap-gpmc.c driver refused to probe (-EBUSY) with
> newer kernels (>5.10). 

Please base your patches on a recent Linux kernel (judging by CC list
this is something old) - either current RC or linux-next.

Best regards,
Krzysztof



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