[PATCH 2/2] bootcount: Add driver model I2C driver

[Philip Oberfichtner]

Hi Heiko,

On Wed, Oct 18, 2023 at 06:31:57AM +0200, Heiko Schocher wrote:
> [...]
> 
> May Philip can use uclass_get_device_by_phandle and try a list of
> possible UCLASS candidates, like UCLASS_RTC, UCLASS_I2C_EEPROM,
> UCLASS_POWER,... and if found, check if parent is UCLASS_I2C...
> 
> may not so expensive ...

Looks more cheap and elegant than the other variants indeed. But I'm not
sure if we can maintain generality using this approach. 

What if the specific I2C driver is not included in the build, because
the devices "actual" functionality is not required? Or what if a driver
for the specific device does not even exist in U-Boot?

Wouldn't the device fail to probe then?

Please correct me if I'm wrong, I'd give it a shot in that case.
Otherwise I'll try it with the aforementioned
device_find_global_by_ofnode() followed by device_bind_driver() using
UCLASS_I2C_GENERIC (I hope that works).

Best regards,
Philip


> 
> bye,
> Heiko
> -- 
> DENX Software Engineering GmbH,      Managing Director: Erika Unter
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