From: Luotao Fu <l.fu@pengutronix.de>
Date: Fri, 13 Nov 2009 09:41:17 +0000 (+0100)
Subject: mpc52xx_spi: add gpio chipselect
X-Git-Tag: v2.6.33-rc1~279^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8d4e2ce60b63294e3408d1c5211b8a8dc4af095;p=pandora-kernel.git

mpc52xx_spi: add gpio chipselect

This one enables the mpc52xx_spi driver for usage of user defined gpio lines
as chipselect. This way we can control some more spi devices than only one

V2 Changes:
* preinitialize the gpio as output in probe function and call gpio_set_value in
  the chip select function instead of calling direction_output every time.
* initialize the gpio line with output high, since we don't support CS_HIGH
  in the driver currently any way. change gpio value setting to default active
  low in chip select call.
* free the gpio array while error or removing.

Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

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