From: ryan@bluewatersys.com (Ryan Mallon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ep93xx: update i2c support
Date: Thu, 01 Oct 2009 10:08:34 +1300 [thread overview]
Message-ID: <4AC3C8D2.5060009@bluewatersys.com> (raw)
In-Reply-To: <BD79186B4FD85F4B8E60E381CAEE190901D42C6B@mi8nycmail19.Mi8.com>
H Hartley Sweeten wrote:
> Update the ep93xx i2c support:
>
> 1) The platform init code passes the configuration data for the
> i2c-gpio driver. This allows any gpio pin do be used for the
> sda and scl pins. It also allows the platform to specify the
> udelay and timeout.
> 2) Program the gpio configuration register to enable/disable the
> open drain drivers. Note that this really only works if the
> sda and scl pins are set to EP93XX_GPIO_LINE_EEDAT and
> EP93XX_GPIO_LINE_EECLK.
Maybe print a warning then if sda/scl_is_open_drain is set and the pin
is not set to EEDAT/EECLK.
~Ryan
--
Bluewater Systems Ltd - ARM Technology Solution Centre
Ryan Mallon 5 Amuri Park, 404 Barbadoes St
ryan at bluewatersys.com PO Box 13 889, Christchurch 8013
http://www.bluewatersys.com New Zealand
Phone: +64 3 3779127 Freecall: Australia 1800 148 751
Fax: +64 3 3779135 USA 1800 261 2934
next prev parent reply other threads:[~2009-09-30 21:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 19:18 [PATCH] ep93xx: update i2c support H Hartley Sweeten
2009-09-18 19:29 ` H Hartley Sweeten
2009-09-30 20:10 ` Ryan Mallon
2009-09-30 20:18 ` H Hartley Sweeten
2009-09-30 21:01 ` H Hartley Sweeten
2009-09-30 21:08 ` Ryan Mallon [this message]
2009-09-30 21:24 ` H Hartley Sweeten
2009-10-01 1:55 ` Ryan Mallon
2009-10-01 21:41 ` H Hartley Sweeten
2009-10-01 22:18 ` H Hartley Sweeten
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