openwrt/target/linux/bcm27xx/patches-4.19/950-0777-sound-soc-only-first-codec-is-master-in-multicodec-s.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

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Diff

From 4ca89eb8570cb86314a5a7b55a15d15f53ce5757 Mon Sep 17 00:00:00 2001
From: Johannes Krude <johannes@krude.de>
Date: Sat, 16 Nov 2019 12:41:06 +0100
Subject: [PATCH] sound/soc: only first codec is master in multicodec
setup
When using multiple codecs, at most one codec should generate the master
clock. All codecs except the first are therefore configured for slave
mode.
Signed-off-by: Johannes Krude <johannes@krude.de>
---
sound/soc/soc-core.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1688,8 +1688,15 @@ int snd_soc_runtime_set_dai_fmt(struct s
for (i = 0; i < rtd->num_codecs; i++) {
struct snd_soc_dai *codec_dai = codec_dais[i];
+ unsigned int codec_dai_fmt = dai_fmt;
- ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
+ // there can only be one master when using multiple codecs
+ if (i && (codec_dai_fmt & SND_SOC_DAIFMT_MASTER_MASK)) {
+ codec_dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+ codec_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+ }
+
+ ret = snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
if (ret != 0 && ret != -ENOTSUPP) {
dev_warn(codec_dai->dev,
"ASoC: Failed to set DAI format: %d\n", ret);