linux-kernel - Re: [PATCH v2] i2c: axxia: Add I2C driver for AXM55xx

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Date:	Fri, 3 Oct 2014 12:36:30 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Anders Berg <anders.berg@...gotech.com>
Cc:	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org
Subject: Re: [PATCH v2] i2c: axxia: Add I2C driver for AXM55xx

> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index 2ac87fa..8983474 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -77,6 +77,17 @@ config I2C_AMD8111
>  	  This driver can also be built as a module.  If so, the module
>  	  will be called i2c-amd8111.
>  
> +config I2C_AXXIA
> +	tristate "Axxia I2C controller"
> +	depends on ARCH_AXXIA || COMPILE_TEST
> +	default ARCH_AXXIA
> +	help
> +	  Say yes if you want to support the I2C bus on Axxia platforms.
> +
> +	  Please note that this controller is limited to transfers of maximum
> +	  255 bytes in length. Any attempt to to a larger transfer will return
> +	  an error.
> +
>  config I2C_I801
>  	tristate "Intel 82801 (ICH/PCH)"
>  	depends on PCI
> diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
> index 49bf07e..5899edb 100644
> --- a/drivers/i2c/busses/Makefile
> +++ b/drivers/i2c/busses/Makefile
> @@ -12,6 +12,7 @@ obj-$(CONFIG_I2C_ALI15X3)	+= i2c-ali15x3.o
>  obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
>  obj-$(CONFIG_I2C_AMD756_S4882)	+= i2c-amd756-s4882.o
>  obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
> +obj-$(CONFIG_I2C_AXXIA)		+= i2c-axxia.o
>  obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
>  obj-$(CONFIG_I2C_ISCH)		+= i2c-isch.o
>  obj-$(CONFIG_I2C_ISMT)		+= i2c-ismt.o

Please put it to the embedded section.

...

> +	idev->adapter.class = I2C_CLASS_HWMON;

Being a DT driver, you most probably don't need this.


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