On 06/18/2012 11:19 AM, Roland Stigge wrote:
>> While I agree this is a correct change, it is going to break some
>> existing code - at least sound/soc/tegra/tegra_{wm8903.c,alc5632.c}.
>
> Can you please tell in which way the patch breaks those drivers?
> However, I can see that those drivers solved the same problem in a
> different way (deferring of_get_named_gpio(), via the sound init()). So
> they could be adjusted to take advantage of new -EPROBE_DEFER
>
>> However, have you audited all existing callers (including
>> indirect, e.g. through plain of_get_named_gpio()) for issues this will
>> cause?
>
> Thanks for the hint, I searched the code and found
>
> drivers/spi/spi-pl022.c
>
> to be using -ENODEV as indication to return -EPROBE_DEFER from probe().
> Will send a patch that adjusts to our of_get_named_gpio_flags() patch
> and if it's good, we should join the two.
Turned out that this is a fix for a yet-unapplied patch (to support dt
for pl022). Alexandre will merge my fix into his patch.
So I can't find immediate breakage from the gpiolib-of patch.
Thanks,
Roland
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