diff options
| author | Duncan Laurie <dlaurie@google.com> | 2017-08-29 08:36:55 -0700 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2017-08-30 15:36:59 +0000 |
| commit | f10c8f9cf3930db624955f04cb6434d69e16030e (patch) | |
| tree | 3103cd764fa6f81f7bca07f04850e950eb8e48e7 /src | |
| parent | 1533a3cae8cdeeef8ed397c4965e7deca3c73adc (diff) | |
| download | coreboot-f10c8f9cf3930db624955f04cb6434d69e16030e.tar.xz | |
mb/google/eve: rt5514: Add 16ms delay on dmic init
Add a 16ms delay to DMIC init by the kernel driver in order to
prevent an audible 'pop' noise when starting to record.
BUG=b:63413023
TEST=manual testing to ensure this device property is present in SSDT:
Name (_DSD, Package () {
ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301")
Package () {
Package () {
"realtek,dmic-init-delay",
0x10
}
}
})
Change-Id: If9160ce6992153ba49719029de336595bbf4ae72
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/21271
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/eve/devicetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/eve/devicetree.cb b/src/mainboard/google/eve/devicetree.cb index 2e017f8dcd..37e3b1e4f9 100644 --- a/src/mainboard/google/eve/devicetree.cb +++ b/src/mainboard/google/eve/devicetree.cb @@ -300,6 +300,11 @@ chip soc/intel/skylake register "hid" = ""10EC5514"" register "name" = ""RT54"" register "desc" = ""Realtek RT5514"" + register "property_count" = "1" + # Set the DMIC initial delay to 16ms to avoid pop noise + register "property_list[0].type" = "ACPI_DP_TYPE_INTEGER" + register "property_list[0].name" = ""realtek,dmic-init-delay"" + register "property_list[0].integer" = "16" device i2c 57 on end end end # I2C #4 |