On Mon, Feb 8, 2016 at 12:29 PM, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > On Mon, Feb 08, 2016 at 11:09:43AM +0100, Wolfram Sang wrote: >> On Mon, Nov 30, 2015 at 05:11:42PM +0200, Andy Shevchenko wrote: >> There has been a request to get this into stable: >> >> https://bugzilla.kernel.org/show_bug.cgi?id=108581 >> >> Since we probably don't want to backport the whole device_property >> series, is there a simpler fix to backport for stable? > > Basically all it needs is to have: > > dev->sda_hold_time = 28 > > in dw_i2c_acpi_configure(). However, we cannot just unconditionally set > it as it will break existing non-SKL systems so there should be some way > to check if this is SKL or not. Perhaps we could look for DMI entries of > the affected machines? > > BTW, this is not a regression in a sense as SKL I2C never worked before > this series. I could add that "backporting" something which is drastically different to the original mainstream may probably prevent a smooth backporting the fixes come later if any. Thus, I would try to port as much closer as we can to the existing upstream code. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
