[PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C controller

Bjorn Andersson bjorn.andersson at sonymobile.com
Mon Feb 24 13:05:54 EST 2014


On Mon 24 Feb 09:40 PST 2014, Josh Cartwright wrote:

> On Mon, Feb 24, 2014 at 12:33:10PM +0200, Ivan T. Ivanov wrote:
> > On Fri, 2014-02-21 at 09:35 -0600, Kumar Gala wrote: 
> > > On Feb 20, 2014, at 6:38 PM, Bjorn Andersson <bjorn.andersson at sonymobile.com> wrote:
> > > 
> > > > This bus driver supports the QUP i2c hardware controller in the Qualcomm SOCs.
> > > > The Qualcomm Universal Peripheral Engine (QUP) is a general purpose data path
> > > > engine with input/output FIFOs and an embedded i2c mini-core. The driver
> > > > supports FIFO mode (for low bandwidth applications) and block mode (interrupt
> > > > generated for each block-size data transfer).
> > > > 
> > > > Cc: Andy Gross <agross at codeaurora.org>
> > > > Cc: Stephen Boyd <sboyd at codeaurora.org>
> > > > Signed-off-by: Ivan T. Ivanov <iivanov at mm-sol.com>
> > > > Signed-off-by: Bjorn Andersson <bjorn.andersson at sonymobile.com>
> > > > ---
> > > > +config I2C_QUP
> > > > +	tristate "Qualcomm QUP based I2C controller"
> > > > +	depends on ARCH_MSM
> > > 
> > > ARCH_QCOM
> > 
> > There is no such symbol, still.
> 
> For what it's worth, the rename/split is in linux-next, and will land in
> 3.15 (as part of arm-soc cleanups).
> 
> Is the (short-term) problem of the lack of the symbol a problem?  Worse
> case, this driver lands before the ARCH_QCOM rename lands, and the
> driver is just not selectable.  Only when both are in place can the
> driver be selected.

As it's best case that this driver lands at the same time as that cleanup I do
agree. I'll "rebase" this ontop of Kumar's series for the next revision.

Regards,
Bjorn



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