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SubjectRe: [PATCH] I2C: Make I2C core able to be module when I2C_ACPI is selected.
On Tue, Aug 12, 2014 at 12:53:21PM +0300, Mika Westerberg wrote:
> On Mon, Aug 11, 2014 at 03:00:55PM +0800, Lan Tianyu wrote:
> > Commit da3c6647(I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI
> > config) adds a new kernel config I2C_ACPI and make I2C core built in
> > when the config is selected. This is wrong because distributions
> > etc generally compile I2C as a module and the commit broken that.
> > This patch is to make I2C core able to be a module when I2C_ACPI is
> > selected. Original issue the commit da3c6647 tried to avoid will
> > be fixed in ACPICA and it's rarely triggered during unloading module.
> >
> > Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
>
> I wonder if we can do
>
> depends on I2C=y
>
> here? If I understand it right, then we only build the ACPI_I2C if I2C
> is compiled into the kernel. That way the problem da3c6647 tried to
> solve doens't re-appear.
>
> We can later on relax this once ACPICA has been fixed. Thoughts?

I had the same idea yet my travel to Chicago interrupted thinking about
it further. Once I get rid of my jetlag, I'll have a closer look. Unless
you already came up with the perfect solution until then, of course ;)

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