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freifunkist-firmware/target/linux/brcm2708/patches-4.14/950-0231-ASoC-hifiberry_dac...

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From 05a5419c9e0ec993bc8dafd60e9fbe6c04e9e8c0 Mon Sep 17 00:00:00 2001
From: Matthias Reichl <hias@horus.com>
Date: Thu, 22 Feb 2018 13:09:30 +0100
Subject: [PATCH 231/454] ASoC: hifiberry_dacplus: transmit S24_LE with 64 BCLK
cycles
Signed-off-by: Matthias Reichl <hias@horus.com>
---
sound/soc/bcm/hifiberry_dacplus.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/sound/soc/bcm/hifiberry_dacplus.c
+++ b/sound/soc/bcm/hifiberry_dacplus.c
@@ -221,16 +221,27 @@ static int snd_rpi_hifiberry_dacplus_hw_
{
int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ int channels = params_channels(params);
+ int width = 32;
if (snd_rpi_hifiberry_is_dacpro) {
struct snd_soc_codec *codec = rtd->codec;
+ width = snd_pcm_format_physical_width(params_format(params));
+
snd_rpi_hifiberry_dacplus_set_sclk(codec,
params_rate(params));
ret = snd_rpi_hifiberry_dacplus_update_rate_den(
substream, params);
}
+
+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x03, 0x03,
+ channels, width);
+ if (ret)
+ return ret;
+ ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03,
+ channels, width);
return ret;
}