Re: [Resend Patch 7/9] I2C/ACPI: Add i2c ACPI operation region support

From: Lan Tianyu
Date: Tue Apr 22 2014 - 22:01:09 EST


Hi Mika:
Thanks a lot for your review.

On 2014å04æ22æ 19:36, Mika Westerberg wrote:
>> > +
>> > + client.adapter = adapter;
>> > + client.addr = sb->slave_address;
>> > + client.flags = 0;
> I'm not sure if this is the correct way to use struct i2c_client
> (allocating it from stack and passing forward to functions that might
> expect a real i2c_client structure). It has ->dev and all.

I check all i2c_smbus_xxx helper functions and they are simple wrappers
of i2c_smbus_xfer(). Only adapter, addr and flags of struct client are
used in these functions.

>
> I'm wondering if you can use i2c_transfer() and i2c_smbus_xfer() here
> instead, passing just the adapter pointer?
>

Yes, I can do that but this needs to copy all codes of i2c_smbus_xxx
helper function in the i2c-core.c here. This seems duplicated?

--
Best regards
Tianyu Lan
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