Re: [PATCH] SDHCI: Suspend/Resume needs to save/restore INT_ENABLE on ARM/Tegra2

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Hi,

On Wed, Mar 9, 2011 at 3:11 PM, Andrei Warkentin <andreiw@xxxxxxxxxxxx> wrote:

>> Does kernel.org still need something to deal with state of
>> SDHCI_QUIRK_NO_SDIO_IRQ quirk bit?
>
> I'm confused. I see this quirk added as part of Tegra sdhci support in
> our K36 tree. I suppose with this patch the should be no need for this
> quirk. I'll apply your change today and see what I get.

Next time, feel free to cc me. :)

I removed the quirk during driver cleanup because, based on my
testing, it was no longer needed. I also asked nvidia why the quirk
was ever needed (took a while to get a response):

Turns out it was left over from hardware errata on a previous product
using the same IP block (i.e. Tegra 1), and is no longer required for
Tegra 2 (since the block gap interrupt is enabled).

So, no, it should not be needed in the upstream driver. The patch from
Grant is though.

If it's unappetizing for sdhci-wide consumption, we could add
suspend/resume hooks for sdhci-tegra only and save/restore it there.


-Olof
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