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| author | Kevin Chiu <Kevin.Chiu@quantatw.com> | 2016-11-09 14:23:06 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-11-10 16:48:59 +0100 |
| commit | 49ef5aa99b567b6d01428c5f43e55f5808712921 (patch) | |
| tree | 12ea83f7070b9500ed0d847a5736b600dab30235 /src/mainboard/google/reef | |
| parent | f5fb219f0f0d85cee50f7263d9cac6ed4a3413d6 (diff) | |
| download | coreboot-49ef5aa99b567b6d01428c5f43e55f5808712921.tar.xz | |
google/pyro: 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:58112
BRANCH=master
TEST=emerge-pyro coreboot chromeos-bootimage
Change-Id: I5aee41957c9de7a05f962d3ede74efc6998a78fc
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/17336
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/mainboard/google/reef')
| -rw-r--r-- | src/mainboard/google/reef/variants/pyro/devicetree.cb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/pyro/devicetree.cb b/src/mainboard/google/reef/variants/pyro/devicetree.cb index 60729ef6d9..0e71398d6a 100644 --- a/src/mainboard/google/reef/variants/pyro/devicetree.cb +++ b/src/mainboard/google/reef/variants/pyro/devicetree.cb @@ -85,6 +85,7 @@ 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 |