On Wednesday 04 July 2007, Sascha Hauer wrote:
I agree 100%. What I would like to have in a new version is that devices only get initialized before they are actually used in U-Boot, and get deiniztialized (shut down completely) after being used (not doing the latter is a continuing PITA in the current code).
My tree already has a device structure containing the usual probe function. This should only make sure that the device is registered and can be used, but actual initialization can be defered. The thing currently missing is a tree structure for devices. They are all in one simple linked list, so you cannot make sure that the devices get de-initialized in the correct order.
btw I know one exception to the only-initialized-when-used rule. We often need to initialize the MAC Address in ethernet devices, even when they are not used.
My crystal ball just told me, that there will be a remark from Wolfgang about this statement. ;-)
Best regards, Stefan
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