From f87a281f685704cb30c312aa764993dd2007fb8f Mon Sep 17 00:00:00 2001 From: Shuai Li Date: Fri, 15 Mar 2019 16:20:26 +0800 Subject: [PATCH] audio: pull down audio I2S pins [1/1] PD#TV-2362 Problem: A DC voltage is always there about 300ms. And coupled with LRCLK and SCLK which may cause a toggle an DAC side. Solution: Pull down the data pin to clear the DC level. Verify: Local verified. Change-Id: Ib7aff22c44dcec2f653b7ed29495e5e52c16e038 Signed-off-by: Shuai Li --- arch/arm/boot/dts/amlogic/tl1_t962x2_skt.dts | 2 +- arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts | 2 +- arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts | 2 +- arch/arm64/boot/dts/amlogic/tl1_t962x2_t309.dts | 2 +- arch/arm64/boot/dts/amlogic/tl1_t962x2_x301.dts | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/amlogic/tl1_t962x2_skt.dts b/arch/arm/boot/dts/amlogic/tl1_t962x2_skt.dts index 1bd3074..4921204 100644 --- a/arch/arm/boot/dts/amlogic/tl1_t962x2_skt.dts +++ b/arch/arm/boot/dts/amlogic/tl1_t962x2_skt.dts @@ -1496,7 +1496,7 @@ "tdma_dout2_z", "tdma_dout3_z"; function = "tdma_out"; - bias-disable; + bias-pull-down; }; }; diff --git a/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts b/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts index aaa99b4..5e6b26d 100644 --- a/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts +++ b/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts @@ -1497,7 +1497,7 @@ "tdma_fs_z", "tdma_dout0_z"; function = "tdma_out"; - bias-disable; + bias-pull-down; }; }; diff --git a/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts b/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts index 87511db..91ef181 100644 --- a/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts +++ b/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts @@ -1592,7 +1592,7 @@ "tdma_fs_z", "tdma_dout0_z"; function = "tdma_out"; - bias-disable; + bias-pull-down; }; }; diff --git a/arch/arm64/boot/dts/amlogic/tl1_t962x2_t309.dts b/arch/arm64/boot/dts/amlogic/tl1_t962x2_t309.dts index c06f3a3..1a7e65b 100644 --- a/arch/arm64/boot/dts/amlogic/tl1_t962x2_t309.dts +++ b/arch/arm64/boot/dts/amlogic/tl1_t962x2_t309.dts @@ -1494,7 +1494,7 @@ "tdma_fs_z", "tdma_dout0_z"; function = "tdma_out"; - bias-disable; + bias-pull-down; }; }; diff --git a/arch/arm64/boot/dts/amlogic/tl1_t962x2_x301.dts b/arch/arm64/boot/dts/amlogic/tl1_t962x2_x301.dts index 6649d77..71b3875 100644 --- a/arch/arm64/boot/dts/amlogic/tl1_t962x2_x301.dts +++ b/arch/arm64/boot/dts/amlogic/tl1_t962x2_x301.dts @@ -1551,7 +1551,7 @@ "tdma_fs_z", "tdma_dout0_z"; function = "tdma_out"; - bias-disable; + bias-pull-down; }; }; -- 2.7.4