RE: [PATCH v2] sdio: skip initialization on powered resume

[Bing Zhao <bzhao@marvell.com>]

Hi Ohad,

> -----Original Message-----
> From: Ohad Ben-Cohen [mailto:ohad@wizery.com]
> Sent: Saturday, January 22, 2011 2:01 PM
> To: zhangfei gao
> Cc: Nicolas Pitre; Bing Zhao; Sahitya Tummala; linux-mmc@vger.kernel.org; Michal Miroslaw; Chris Ball;
> Andrew Morton; Maxim Levitsky
> Subject: Re: [PATCH v2] sdio: skip initialization on powered resume
> 
> On Fri, Jan 21, 2011 at 11:07 AM, zhangfei gao <zhangfei.gao@gmail.com> wrote:
> > Do you have any updated patch to skip mmc_sdio_init_card in resume back.
> > We need such patch in enable host sleep feature for mrvl8787.
> 
> Is mrvl8787 a removable card ?

It can be either a removable or non-removable card, depending on what platform is used.

> 
> I'm asking because we already skip mmc_sdio_init_card() for
> powered-resumed nonremovable cards (check out commit 3cfc33a "mmc:
> sdio: don't reinitialize nonremovable powered-resumed cards").

Thanks for the info.

> 
> I'm not familiar with marvell's cards, but I do remember a thread
> mentioning they have dedicated reset GPIOs, and that may suggest they
> are nonremovables. If that's the case, simply setting
> MMC_CAP_NONREMOVABLE on the relevant slot should do the trick for you.

I think this approach works for Zhangfei on his embedded platform on which the 8787 card is non-removable.

Regards,

Bing