Add Apple M1 support to PASemi i2c driver

[Christian Zigotzky]

> On 3. Oct 2021, at 16:36, Sven Peter <sven at svenpeter.dev> wrote:
> 
> Hi,
> 
> 
>> On Fri, Oct 1, 2021, at 06:47, Christian Zigotzky wrote:
>>> On 27 September 2021 at 07:39 am, Sven Peter wrote:
>>> Hi Christian,
>>> 
>>> Thanks already for volunteering to test this!
>>> 
>> Hello Sven,
>> 
>> Damien (Hypex) has successfully tested the RC3 of kernel 5.15 with your 
>> modified i2c driver on his Nemo board yesterday. [1]
> 
> Thanks a lot, that's great to hear!
> If he wants to I can credit him with a Tested-by tag in the commit message,
> see e.g. https://www.kernel.org/doc/html/latest/process/submitting-patches.html#using-reported-by-tested-by-reviewed-by-suggested-by-and-fixes.
> 
> 
> Best,
> 
> 
> Sven

Hi Sven,

Unfortunately Damien has found an issue. [1]

Output of i2cdetect -l with the default RC3 of kernel 5.15 without your modifications:

2c-0	i2c       	Radeon i2c bit bus 0x90         	I2C adapter
i2c-1	i2c       	Radeon i2c bit bus 0x91         	I2C adapter
i2c-2	i2c       	Radeon i2c bit bus 0x92         	I2C adapter
i2c-3	i2c       	Radeon i2c bit bus 0x93         	I2C adapter
i2c-4	i2c       	Radeon i2c bit bus 0x94         	I2C adapter
i2c-5	i2c       	Radeon i2c bit bus 0x95         	I2C adapter
i2c-6	i2c       	Radeon i2c bit bus 0x96         	I2C adapter
i2c-7	i2c       	Radeon i2c bit bus 0x97         	I2C adapter
i2c-8	i2c       	PA Semi SMBus adapter at 0x800200	I2C adapter
i2c-9	i2c       	PA Semi SMBus adapter at 0x800240	I2C adapter
i2c-10	i2c       	PA Semi SMBus adapter at 0x800280	I2C adapter

Output of i2cdetect -l with your modifications:

i2c-0	i2c       	Radeon i2c bit bus 0x90         	I2C adapter
i2c-1	i2c       	Radeon i2c bit bus 0x91         	I2C adapter
i2c-2	i2c       	Radeon i2c bit bus 0x92         	I2C adapter
i2c-3	i2c       	Radeon i2c bit bus 0x93         	I2C adapter
i2c-4	i2c       	Radeon i2c bit bus 0x94         	I2C adapter
i2c-5	i2c       	Radeon i2c bit bus 0x95         	I2C adapter
i2c-6	i2c       	Radeon i2c bit bus 0x96         	I2C adapter
i2c-7	i2c       	Radeon i2c bit bus 0x97         	I2C adapter
i2c-8	i2c       	PA Semi SMBus adapter at 0x(____ptrval____)	I2C adapter
i2c-9	i2c       	PA Semi SMBus adapter at 0x(____ptrval____)	I2C adapter
i2c-10	i2c       	PA Semi SMBus adapter at 0x(____ptrval____)	I2C adapter

Please check the outputs.

Thanks,
Christian

[1] https://forum.hyperion-entertainment.com/viewtopic.php?p=54165#p54165
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