> -----Original Message-----
> From: Zheng, Lv
> Sent: Monday, February 22, 2016 3:57 PM
> To: Chen, Yu C; linux-acpi@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx; rjw@xxxxxxxxxxxxx; lenb@xxxxxxxxxx;
> matthew.garrett@xxxxxxxxxx; andy.shevchenko@xxxxxxxxx; Chen, Yu C
> Subject: RE: [PATCH][v3] ACPI: Do not report _OSI("Darwin") when
> acpi_osi=!Darwin provided
>
> Hi, Yu
>
> > From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-
> > owner@xxxxxxxxxxxxxxx] On Behalf Of Chen Yu
> > Subject: [PATCH][v3] ACPI: Do not report _OSI("Darwin") when
> > acpi_osi=!Darwin provided
> >
> > Commit 7bc5a2bad0b8 ("ACPI: Support _OSI("Darwin") correctly") always
> > reports positive value when Apple hardware queries _OSI("Darwin").
> > But sometimes the users might want to tell the hardware they don't
> > need the Darwin feature, for example, users may leverage the hardware
> > to power off the Thunderbolt, by appending acpi_osi=!Darwin in command
> > line, thus Apple hardware regards it as an incompatible OS X system,
> > hence turns off the Thunderbolt.
> [Lv Zheng]
> Both this patch and the original commit that is from Matthew look wrong to
> me.
> IMO, the feature should be done with an entirely different approach.
> Without test, I'm not sure if my comment is helpful for you.
> So could you let me take over to fix this issue?
>
Yes, sure, thanks.
yu
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