From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ezequiel Garcia Subject: Re: [PATCH v2 1/2] i2c: Add Imagination Technologies I2C SCB driver Date: Wed, 5 Nov 2014 09:04:07 -0300 Message-ID: <545A1237.4010207@imgtec.com> References: <1415133430-25355-1-git-send-email-ezequiel.garcia@imgtec.com> <1415133430-25355-2-git-send-email-ezequiel.garcia@imgtec.com> <5459D3CB.9060204@mentor.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5459D3CB.9060204-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Vladimir Zapolskiy , James Hogan , Andrew Bresticker Cc: Wolfram Sang , James Hartley , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org On 11/05/2014 04:37 AM, Vladimir Zapolskiy wrote: > Hi Ezequiel, > > On 04.11.2014 22:37, Ezequiel Garcia wrote: >> From: James Hogan >> >> Add support for the IMG I2C Serial Control Bus (SCB) found on the >> Pistachio and TZ1090 SoCs. >> >> Signed-off-by: James Hogan >> [Ezequiel: code cleaning and rebasing] >> Signed-off-by: Ezequiel Garcia >> --- >> drivers/i2c/busses/Kconfig | 10 + >> drivers/i2c/busses/Makefile | 1 + >> drivers/i2c/busses/i2c-img-scb.c | 1410 ++++++++++++++++++++++++++++++++++++++ >> 3 files changed, 1421 insertions(+) >> create mode 100644 drivers/i2c/busses/i2c-img-scb.c >> >> diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c >> new file mode 100644 >> index 0000000..79ad85e >> --- /dev/null >> +++ b/drivers/i2c/busses/i2c-img-scb.c >> @@ -0,0 +1,1410 @@ >> +/* >> + * I2C adapter for the IMG Serial Control Bus (SCB) IP block. >> + * > > [snip] > >> + /* >> + * Get the bus number from the devicetree. Other I2C adapters may be >> + * reserved for non-Linux core. Instead of letting Linux pick any >> + * number, it's useful to fix the bus number so users get a consistent >> + * view. >> + */ >> + ret = of_property_read_u32(node, "linux,i2c-index", &val); >> + if (!ret) >> + i2c->adap.nr = val; >> + else >> + i2c->adap.nr = pdev->id; >> + > > if I'm not mistaken "linux,i2c-index" property is redundant, talking > about Linux you can set up an arbitrary bus number by specifying a DTS > alias. > > Most probably just > > i2c->adap.nr = pdev->id; > > may serve your purposes. > Argh, forgot to remove this one. Thanks, -- Ezequiel