From: Sekhar Nori <nsekhar@ti.com>
Date: Wed, 21 Oct 2009 15:48:20 +0000 (+0530)
Subject: davinci: DA830/OMAP-L137 EVM: use runtime detection for UI card
X-Git-Tag: v2.6.33-rc1~348^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77316f0575264c56fb0c8f241b946a91e3a00602;p=pandora-kernel.git

davinci: DA830/OMAP-L137 EVM: use runtime detection for UI card

This patch supports runtime detection of DA830 UI card and
eliminates the need for DA830_UI config option. Successful
probe of GPIO expander present on the UI card is used to
detect its presence. For this reason, GPIO_PCF857X is auto-
selected when DA830 EVM is configured. In case the UI card
is absent, the probe fails in reasonable time.

As a side effect this patch also gets rid of the voilation
of Documentation/SubmittingPatches section 2.2 in function
da830_evm_ui_expander_setup()

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---

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