From: Rob Herring <robh@kernel.org>
To: Luis Oliveira <Luis.Oliveira@synopsys.com>
Cc: wsa@the-dreams.de, mark.rutland@arm.com,
jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com,
mika.westerberg@linux.intel.com, linux-i2c@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Ramiro.Oliveira@synopsys.com, Joao.Pinto@synopsys.com,
CARLOS.PALMINHA@synopsys.com
Subject: Re: [PATCH v4 3/5] i2c: designware: Add slave definitions
Date: Mon, 12 Dec 2016 11:02:14 -0600 [thread overview]
Message-ID: <20161212170214.4cydp256jsp7srar@rob-hp-laptop> (raw)
In-Reply-To: <5173a9456c423025d8f15baafa2499440cbe1b51.1481131072.git.lolivei@synopsys.com>
On Wed, Dec 07, 2016 at 05:55:50PM +0000, Luis Oliveira wrote:
> - Add slave definitions to i2c-designware-core
> - Changes in Kconfig to auto-enable I2C_SLAVE when compiling the modules
> - Add mode property to designware-core.txt that enable the "slave" selection:
> - "mode" is an optional property that could be "slave" or "master"
> - if "mode" is not set the block is considered master by default
>
> Signed-off-by: Luis Oliveira <lolivei@synopsys.com>
> ---
> Changes V3->V4: (Andy Shevchenko)
> - created a common property for modes
> - placed the generic dependency first
>
> .../devicetree/bindings/i2c/i2c-designware.txt | 4 ++++
> drivers/i2c/busses/Kconfig | 1 +
> drivers/i2c/busses/i2c-designware-common.c | 6 +++++
> drivers/i2c/busses/i2c-designware-core.h | 26 ++++++++++++++++++++++
> 4 files changed, 37 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
> index fee26dc3e858..8ed2b532cd54 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
> @@ -20,6 +20,9 @@ Optional properties :
> - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds.
> This value which is by default 300ns is used to compute the tHIGH period.
>
> + - mode : should be either:
> + - "master" to setup the hardware block as a I2C master
> + - "slave" to setup the hardware block as a I2C slave
This should be documented in a common location. Can't it be a boolean to
enable slave mode? Or don't you need to set the slave address? That
could be enough to enable slave mode and there's already one example
doing that.
Rob
next prev parent reply other threads:[~2016-12-12 17:02 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 17:55 [PATCH v4 0/5] i2c: designware: Add slave support Luis Oliveira
2016-12-07 17:55 ` [PATCH v4 1/5] i2c: designware: Refactoring of the i2c-designware Luis Oliveira
2016-12-07 18:58 ` Andy Shevchenko
2016-12-07 17:55 ` [PATCH v4 2/5] i2c: designware: Master mode as separated driver Luis Oliveira
2016-12-07 19:03 ` Andy Shevchenko
2016-12-07 17:55 ` [PATCH v4 3/5] i2c: designware: Add slave definitions Luis Oliveira
2016-12-07 19:11 ` Andy Shevchenko
2016-12-12 17:02 ` Rob Herring [this message]
2016-12-12 18:35 ` Luis de Oliveira
2016-12-12 23:15 ` Rob Herring
2016-12-13 10:50 ` Luis de Oliveira
2016-12-13 14:11 ` Rob Herring
2016-12-22 14:59 ` Luis Oliveira
2016-12-22 15:29 ` Andy Shevchenko
2016-12-07 17:55 ` [PATCH v4 4/5] i2c: designware: Add slave mode as separated driver Luis Oliveira
2016-12-07 19:07 ` Mark Rutland
2016-12-07 19:49 ` Andy Shevchenko
2016-12-08 4:38 ` kbuild test robot
2016-12-10 23:44 ` kbuild test robot
2016-12-07 17:55 ` [PATCH v4 5/5] i2c: designware: Cleaning comments and formatation Luis Oliveira
2016-12-07 19:52 ` Andy Shevchenko
2016-12-13 15:08 ` Jarkko Nikula
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