[PATCH 02/10] firmware: firmware-zynqmp: Probe driver before use

[Michal Simek]

Hi,

On 6/20/22 08:40, Stefan Herbrechtsmeier wrote:
> Am 16.06.2022 um 16:22 schrieb Michal Simek:
>> On 6/8/22 18:20, Stefan Herbrechtsmeier wrote:
>>> [CAUTION: External Email]
>>>
>>> From: Stefan Herbrechtsmeier <stefan.herbrechtsmeier at weidmueller.com>
>>>
>>> Probe the driver before use to ensure that the global data are valid.
>>
>> It is not clear what the issue is. And this function is called in SPL or EL3 
>> and likely multiple times.
>> Can you please clarify?
> 
> The driver only works if it is used after u-boot,dm-pre-reloc. This change is 
> needed to support a usage by other drivers like xlnx,zynqmp-firmware.

Can you please describe the case, execution path where it is used before?

Also that calling multiple times is just adding overhead for boot up time. We 
should try to avoid it as much as possible.

M