From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Luis Oliveira <Luis.Oliveira@synopsys.com>,
Wolfram Sang <wsa@the-dreams.de>,
Ramiro Oliveira <Ramiro.Oliveira@synopsys.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
jarkko.nikula@linux.intel.com, mika.westerberg@linux.intel.com,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
robh+dt@kernel.org, devicetree@vger.kernel.org,
CARLOS.PALMINHA@synopsys.com
Subject: Re: [PATCH v2 3/4] Device bindings documentation updated ACPI-enabled platforms not currently supported
Date: Fri, 21 Oct 2016 13:54:32 +0300 [thread overview]
Message-ID: <1477047272.6423.6.camel@linux.intel.com> (raw)
In-Reply-To: <76ab13e9-9aa5-97c3-2328-928bbcef9877@synopsys.com>
On Fri, 2016-10-21 at 10:56 +0100, Luis Oliveira wrote:
> Since practically 90% of the code is shared between master and slave,
> I was
> thinking if it will be acceptable to use the same driver for both but
> differentiate the master/slave mode by the compatible strings.
It might be possible to split like other drivers do:
1. Core part (i2c-designware-core.c)
2. Master part (i2c-designware-master.c)
3. Slave part (i2c-designware-slave.c)
4. Glue drivers (like: i2c-designware-platdrv.c)
>
> Thanks,
> Luis
>
> On 10/18/2016 16:17, Wolfram Sang wrote:
> > > This is needed because the configuration is different and the i2c-
> > > designware
> > > cannot be master/slave without a reset. To resolve that I added
> > > this property
> > > to bind it as a slave when needed.
> >
> > Aww, pity that the HW can't do that. Do you have details why?
> >
> > If that is really a HW limitation, then I'd suggest having a
> > seperate
> > driver for slave-only mode so we can differentiate by compatible
> > strings.
> >
>
>
--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
next prev parent reply other threads:[~2016-10-21 10:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 16:52 [PATCH v2 0/4] Add slave mode to Synopsys I2C driver Luis.Oliveira
2016-10-14 16:52 ` [PATCH v2 1/4] Factor out _master() parts of code and identify as much as possible all related with MASTER mode Luis.Oliveira
2016-10-21 10:37 ` Andy Shevchenko
2016-10-14 16:52 ` [PATCH v2 2/4] Added I2C_SLAVE as a dependency to I2C_DESIGNWARE_CORE Enable _slave() mode Review of the pm_runtime...() methods and cleaning Luis.Oliveira
2016-10-21 10:52 ` Andy Shevchenko
2016-10-14 16:52 ` [PATCH v2 3/4] Device bindings documentation updated ACPI-enabled platforms not currently supported Luis.Oliveira
2016-10-14 17:30 ` Mark Rutland
2016-10-14 18:20 ` Wolfram Sang
[not found] ` <55cc91af-8d24-8aea-f74f-2ef40cd8ea5a@synopsys.com>
2016-10-18 15:17 ` Wolfram Sang
2016-10-21 9:56 ` Luis Oliveira
2016-10-21 10:54 ` Andy Shevchenko [this message]
2016-11-08 14:18 ` Luis Oliveira
2016-10-18 14:50 ` Ramiro Oliveira
2016-10-18 14:33 ` Rob Herring
2016-10-14 16:52 ` [PATCH v2 4/4] Cleaned the code, no functional changes Luis.Oliveira
2016-10-21 10:55 ` Andy Shevchenko
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