diff options
| author | Wisley Chen <wisley.chen@quantatw.com> | 2016-11-10 08:54:56 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2016-11-11 16:14:43 +0100 |
| commit | 5ecc41b0c9226486da71d6aa95a505877f0fdaeb (patch) | |
| tree | cf55e96c8cb020564a40207333b5ba7cee9cbbd3 | |
| parent | 232d31899be8d09db1a32052114e87526d00a057 (diff) | |
| download | coreboot-5ecc41b0c9226486da71d6aa95a505877f0fdaeb.tar.xz | |
google/snappy: update timing of sdmode toggling
Maxim98357a speaker amp requires BCLK & SFRM to be active
and stable before it is unmuted. If there is a BLCK and no
SFRM, it results in a pop sound.
sdmode_delay property already exists which facilitates this
configuration. This patch updates "sdmode_delay" to avoid
pop sound.
BUG=chrome-os-partner:59034
BRANCH=master
TEST=emerge-snappy coreboot chromeos-bootimage
Change-Id: Ic9095ae6812ba822c760229e69f5b27c6c244cdf
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/17361
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
| -rw-r--r-- | src/mainboard/google/reef/variants/snappy/devicetree.cb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/snappy/devicetree.cb b/src/mainboard/google/reef/variants/snappy/devicetree.cb index b4c53ea70e..f393019737 100644 --- a/src/mainboard/google/reef/variants/snappy/devicetree.cb +++ b/src/mainboard/google/reef/variants/snappy/devicetree.cb @@ -90,6 +90,7 @@ chip soc/intel/apollolake device pci 0e.0 on # - Audio chip drivers/generic/max98357a register "sdmode_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_76)" + register "sdmode_delay" = "5" device generic 0 on end end end |