[PATCH V5 7/9] ARM: dts: tegra: add non-removable and keep-power-in-suspend property for MMC

[Thierry Reding]

On Tue, Apr 02, 2013 at 01:58:41PM -0600, Stephen Warren wrote:
> On 04/02/2013 05:20 AM, Joseph Lo wrote:
> > This patch adds "non-removable" property of MMC host where the eMMC device
> > is for Tegra platform.
> > 
> > And the "keep-power-in-suspend" property was used for the SDIO device that
> > need this to go into suspend mode (e.g. BRCM43xx series).
> 
> >  arch/arm/boot/dts/tegra20-paz00.dts      | 1 +
> >  arch/arm/boot/dts/tegra20-seaboard.dts   | 2 ++
> >  arch/arm/boot/dts/tegra20-ventana.dts    | 2 ++
> >  arch/arm/boot/dts/tegra20-whistler.dts   | 1 +
> >  arch/arm/boot/dts/tegra30-beaver.dts     | 1 +
> >  arch/arm/boot/dts/tegra30-cardhu-a02.dts | 1 +
> >  arch/arm/boot/dts/tegra30-cardhu-a04.dts | 1 +
> >  arch/arm/boot/dts/tegra30-cardhu.dtsi    | 1 +
> 
> I think there are a bunch of other boards that need a similar change,
> right? There are certainly eMMC devices on other boards, and shouldn't
> they be marked with non-removable? In particular, Beaver, Dalmore, and
> Pluto, and likely some/all of the Colibri and Avionic Design boards. I
> think it should be obvious which SDHCI devices need this, since there
> won't be any cd-gpios property and the bus-width will likely be 8.

For Tegra20 Tamonten we don't use eMMC. Ideally we'd be using NAND to
boot from but that doesn't have mainline support. I have a semi-working
patch and will probably spend some more time getting it ready. The MMC
cards are all removable, though I guess since they are the boot device
they still should remain powered in suspend?

Thierry
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