linux-kernel - Re: Nokia N900: u-SD card in v4.2+

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Date:	Thu, 7 Jan 2016 11:10:27 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	Pavel Machek <pavel@....cz>, <pali.rohar@...il.com>,
	<sre@...ian.org>, <sre@...g0.de>,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <tony@...mide.com>,
	<khilman@...nel.org>, <aaro.koskinen@....fi>,
	<ivo.g.dimitrov.75@...il.com>, <patrikbachan@...il.com>
Subject: Re: Nokia N900: u-SD card in v4.2+

Hi,

On Thursday 07 January 2016 02:16 AM, Pavel Machek wrote:
> Hi!
> 
> In v4.1, both internal MMC and u-SD cards work ok.
> 
> In v4.2, only the internal MMC is detected. In v4.3, not even internal
> MMC works. In v4.4, only the internal MMC is detected.
> 
> Does it work for you? Any patches?

I don't have Nokia N900 to check this, but can you share your config and kernel
logs? Check if CONFIG_REGULATOR_PBIAS is present in your config.
CONFIG_REGULATOR_PBIAS is now mandatory for all omap3+ SoCs to work.

Thanks
Kishon

> 
> (I do have hack in the dts to disable back cover detection...)
> 
> 									Pavel
> 
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