forked from Minki/linux
64e84305cb
Baytrail-CR devices usually expose information in the DSDT
which can be used to auto-detect AIF1/AIF2 connections.
The CHAN package contains two integers, the first one describes
the AIF number (1: AIF1, 2: AIF2) and the second the MCLK
value (ignored in this patch)
For example the following information is found in Lenovo 100s:
Device (RTEK) {
[...]
Name (CHAN, Package (0x02)
{
One,
0x017D7840
})
While on Asus T100TAF the package values are:
Name (CHAN, Package (0x02)
{
0x02,
0x017D7840
})
This patch relies on the new common routine to extract
a package exposed by a device indexed with the HID value.
The CHAN package contents are queried from the machine driver
and stored in a structure.
If this auto-detection fails (missing or bad package in the
BIOS), the routing falls back to SSP0-AIF2.
Note that quirks may still be needed to support mono speakers
or microphone, but this should reduce the number of issues with
Baytrail significantly.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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| .. | ||
| atom | ||
| baytrail | ||
| boards | ||
| common | ||
| haswell | ||
| skylake | ||
| Kconfig | ||
| Makefile | ||