Re: [PATCH 2/3] i2c: move OF i2c related functions into i2c core

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On Sat, Aug 6, 2011 at 12:15 AM, Rob Herring <robherring2@xxxxxxxxx> wrote:
> Grant,
>
> On 08/05/2011 05:56 PM, Grant Likely wrote:
>> On Fri, Aug 05, 2011 at 04:24:27PM -0500, Rob Herring wrote:
>>> From: Rob Herring <rob.herring@xxxxxxxxxxx>
>>>
>>> This simplifies i2c drivers by removing calls to of_i2c_register_devices
>>> and resolves a module circular dependency between i2c-core and of_i2c.
>>>
>>> Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
>>> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
>>> Cc: Jean Delvare <khali@xxxxxxxxxxxx>
>>> Cc: Ben Dooks <ben-linux@xxxxxxxxx>
>>> Cc: linux-i2c@xxxxxxxxxxxxxxx
>>> ---
>>>  arch/powerpc/platforms/44x/warp.c |    1 -
>>>  drivers/i2c/i2c-core.c            |   85 +++++++++++++++++++++++++++++++-
>>>  drivers/of/Makefile               |    1 -
>>>  drivers/of/of_i2c.c               |   97 -------------------------------------
>>>  include/linux/i2c.h               |    4 ++
>>>  include/linux/of_i2c.h            |   30 -----------
>>>  6 files changed, 87 insertions(+), 131 deletions(-)
>>>  delete mode 100644 drivers/of/of_i2c.c
>>>  delete mode 100644 include/linux/of_i2c.h
>>>
>>> diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
>>> index 8f77139..9327ccf 100644
>>> --- a/arch/powerpc/platforms/44x/warp.c
>>> +++ b/arch/powerpc/platforms/44x/warp.c
>>> @@ -16,7 +16,6 @@
>>>  #include <linux/interrupt.h>
>>>  #include <linux/delay.h>
>>>  #include <linux/of_gpio.h>
>>> -#include <linux/of_i2c.h>
>>>  #include <linux/slab.h>
>>>
>>>  #include <asm/machdep.h>
>>> diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
>>> index 011e195..478c7f2 100644
>>> --- a/drivers/i2c/i2c-core.c
>>> +++ b/drivers/i2c/i2c-core.c
>>> @@ -22,7 +22,10 @@
>>>     SMBus 2.0 support by Mark Studebaker <mdsxyz123@xxxxxxxxx> and
>>>     Jean Delvare <khali@xxxxxxxxxxxx>
>>>     Mux support by Rodolfo Giometti <giometti@xxxxxxxxxxxx> and
>>> -   Michael Lawnick <michael.lawnick.ext@xxxxxxx> */
>>> +   Michael Lawnick <michael.lawnick.ext@xxxxxxx>
>>> +   OF support by Jochen Friedrich <jochen@xxxxxxxx> and
>>> +   Jon Smirl <jonsmirl@xxxxxxxxx>
>>> +   */
>>>
>>>  #include <linux/module.h>
>>>  #include <linux/kernel.h>
>>> @@ -32,7 +35,6 @@
>>>  #include <linux/init.h>
>>>  #include <linux/idr.h>
>>>  #include <linux/mutex.h>
>>> -#include <linux/of_i2c.h>
>>>  #include <linux/of_device.h>
>>>  #include <linux/completion.h>
>>>  #include <linux/hardirq.h>
>>> @@ -790,6 +792,85 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter)
>>>      up_read(&__i2c_board_lock);
>>>  }
>>>
>>> +#ifdef CONFIG_OF_I2C
>>
>> I think this becomes simply "#ifdef CONFIG_OF" since CONFIG_I2C is implied at this point.
>
> I was going to remove CONFIG_OF_I2C altogether, but it depends on !SPARC
> so I thought it should be kept.

Good point.  I keep forgetting that SPARC has different behaviour.

g.
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