From 49ef5aa99b567b6d01428c5f43e55f5808712921 Mon Sep 17 00:00:00 2001 From: Kevin Chiu Date: Wed, 9 Nov 2016 14:23:06 +0800 Subject: 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 Reviewed-on: https://review.coreboot.org/17336 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin Reviewed-by: Paul Menzel --- src/mainboard/google/reef/variants/pyro/devicetree.cb | 1 + 1 file changed, 1 insertion(+) (limited to 'src/mainboard') 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 -- cgit v1.2.3