linux-kernel - Re: [PATCH 1/2] i2c: Add driver for Cadence I2C controller

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Date:	Fri, 28 Feb 2014 19:06:29 -0800
From:	Sören Brinkmann <soren.brinkmann@...inx.com>
To:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	Michal Simek <michal.simek@...inx.com>,
	Wolfram Sang <wsa@...-dreams.de>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-doc@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-i2c@...r.kernel.org>, Harini Katakam <harinik@...inx.com>,
	Sören Brinkmann <soren.brinkmann@...inx.com>
Subject: Re: [PATCH 1/2] i2c: Add driver for Cadence I2C controller

On Fri, 2014-02-28 at 04:00PM -0800, Soren Brinkmann wrote:
> Add a driver for the Cadence I2C controller. This controller is for
> example found in Xilinx Zynq.
> 
> Signed-off-by: Soren Brinkmann <soren.brinkmann@...inx.com>
> ---
>  .../devicetree/bindings/i2c/i2c-cadence.txt        |  21 +
>  MAINTAINERS                                        |   1 +
>  drivers/i2c/busses/Kconfig                         |   7 +
>  drivers/i2c/busses/Makefile                        |   1 +
>  drivers/i2c/busses/i2c-cadence.c                   | 901 +++++++++++++++++++++
>  5 files changed, 931 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i2c/i2c-cadence.txt
>  create mode 100644 drivers/i2c/busses/i2c-cadence.c
> 
[...]
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index f5ed03164d86..7806c1654068 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -375,6 +375,13 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
>  	help
>  	  The unit of the TWI clock is kHz.
>  
> +config I2C_CADENCE
> +	tristate "Cadence I2C Controller"
> +	depends on ARCH_ZYNQ
This can be reduced to a dependency on COMMON_CLK only, I think.

	Sören


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