Am 2022-07-16 10:20, schrieb Michal Suchánek:
So if DT says there isn't a flash on a specific CS when there is, then
DT should be fixed to describe the flash, and then we can probe it.
You
both seem to be saying the same thing here, and I agree.
The disagreement is about the situation when there is sometimes a flash
chip.
No. The disagreement is what should happen if the DT says there is
a device but there isn't. Which right now is an error and it should
stay that way. Your hardware description says there is a flash
but it cannot be probed, so it is an error. What about a board
which has an actual error and the flash isn't responding? You
trade one use case for another.
Also I've looked at the PHY subsystem and there, if a PHY is described
in the DT but isn't there, the following error will be printed:
dev_err(&mdio->dev, "MDIO device at address %d is missing.\n", addr);
And that is for a bus which can even be automatically be
probed/detected.
-michael
