On 10/31/2013 11:56 PM, Stephen Warren wrote: > On 10/31/2013 01:05 AM, Wei Ni wrote: >> Set full constraints during machine initialisation, so that the >> regulator_get() can get the dummy regulator if the regulator is >> physically present and enabled. >> Discussed this in the link: >> https://lkml.org/lkml/2013/10/8/40 > > Is this needed to fix some bug that'll be in 3.13 or earlier, or does it > just solve a problem that will only be exposed in new code that will > appear in 3.14 or later? Let me explain this patch. I discovered this problem when I worked on lm90 driver. When I appiled my lm90 power control patches (this patch still in review), I found the lm90 will be probed failed on Ventana board, because on this board, the lm90 regulator is physically present and enabled, so the lm90 driver can't use regulator_get() to get regulator, and if we didn't set this full contraints, it can't get the dummy regulator either, then probe failed. So I think it's better to applied this patch earliy, because this solve the compatible issue between Mark's dumy regulator patches, device driver and DT. Thanks. Wei. > > In other words, do I need to apply this for 3.13, or can I hold off > until after the merge window? > > It'd be helpful if the commit description described which > driver/board/DT/commit/... was affected by this. That way, I'd know the > answer to my question just by reading the commit description. > -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
