[U-Boot] [PATCH] i2c: Instantiate I2C controllers when selected

[Heiko Schocher <hs@denx.de>]

Hello Michal,

Am 28.10.2015 um 08:08 schrieb Michal Simek:
> Hi Heiko,
>
> On 10/28/2015 06:56 AM, Heiko Schocher wrote:
>> Hello Michal,
>>
>> Am 27.10.2015 um 16:02 schrieb Michal Simek:
>>> Do not enable both I2C controllers by default. Enable them only when
>>> they are selected.
>>>
>>> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
>>> ---
>>>
>>>    drivers/i2c/zynq_i2c.c | 4 ++++
>>>    1 file changed, 4 insertions(+)
>>
>> Thanks!
>>
>> I will accept this patch, but it is a fix for the old style
>> I2C driver. I would prefer a patch, which converts this driver
>> to DM ;-)
>
> We will do it soon.

Nice!

>> What do you mean with "enabled"? The old style i2c driver,
>> does not initialize (call zynq_i2c_init()) the i2c driver, until
>> it is used ... nevertheless, you save some bytes, which is always
>> good.
>
> All zynq devices have 2 I2C core inside but not all of them are
> connected to the board from chip. I don't know why but both of them were
> enabled by default. Configuration should be done based on real
> connection on the board. It means only certain I2C controller (or both)
> should be enabled via board file.
> This will be solved by moving driver to DM.

Ok.

>> Reviewed-by: Heiko Schocher <hs@denx.de>
>
> Are you going to queue this? Or do you want me to take it via arm zynq repo?

Applied to u-boot-i2c.git

bye,
Heiko
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