On Mon, Jan 04, 2016 at 09:17:35AM -0600, Suravee Suthikulpanit wrote: > The current driver uses input clock source frequency to calculate > values for [SS|FS]_[HC|LC] registers. However, when booting ACPI, we do not > currently have a good way to provide the frequency information. > Instead, we can leverage the SSCN and FFCN ACPI methods, which can be used > to directly provide these values. So, the clock information should > no longer be required during probing. > > However, since clk can be invalid, additional checks must be done where > we are making use of it. > > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx> > Tested-by: Loc Ho <lho@xxxxxxx> > --- > > Note: This has been tested on AMD Seattle RevB for both DT and ACPI. > > Changes from V3 (https://lkml.org/lkml/2015/12/22/596): > * Add i2c_dw_plat_prepare_clk() per Andy's suggestion > * Add tested-by Loc Ho. The changes from V3 are big enough that I'd appreciate a new Tested-by tag.
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