From mboxrd@z Thu Jan 1 00:00:00 1970 From: laurent.pinchart@ideasonboard.com (Laurent Pinchart) Date: Thu, 28 Nov 2013 01:46:36 +0100 Subject: [PATCH 03/04] ARM: shmobile: Genmai I2C-over-GPIO support In-Reply-To: References: <20131127082736.20015.21303.sendpatchset@w520> <2757102.StIMV2khe5@avalon> Message-ID: <3492627.E4uF2vqd6n@avalon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Magnus, On Thursday 28 November 2013 09:44:31 Magnus Damm wrote: > On Wed, Nov 27, 2013 at 8:15 PM, Laurent Pinchart wrote: > > On Wednesday 27 November 2013 17:28:05 Magnus Damm wrote: > >> From: Magnus Damm > >> > >> Add support for the Genmai I2C bus hooked up to P1_5 and P1_4 using > >> the i2c-gpio driver. On the bus sits a 24c128 EEPRROM. > > > > Is this a temporary workaround until we get a proper I2C controller > > driver, or is the EEPROM really hooked up to pins that are not wired to a > > hardware I2C controller ? > > This is a stop-gap solution until we have upstream driver support for the > I2C master hardware. OK, no problem. Is there a timeline for that ? > The pins used for the I2C bus can be configured in GPIO mode or a zillion > other pin functions including SCL and SDA. -- Regards, Laurent Pinchart