diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/801-audio-0012-MLK-9974-ASoC-fsl_sai-There-is-underrun-detected-in-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/801-audio-0012-MLK-9974-ASoC-fsl_sai-There-is-underrun-detected-in-.patch | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/target/linux/layerscape/patches-5.4/801-audio-0012-MLK-9974-ASoC-fsl_sai-There-is-underrun-detected-in-.patch b/target/linux/layerscape/patches-5.4/801-audio-0012-MLK-9974-ASoC-fsl_sai-There-is-underrun-detected-in-.patch deleted file mode 100644 index 3b7de3c98b..0000000000 --- a/target/linux/layerscape/patches-5.4/801-audio-0012-MLK-9974-ASoC-fsl_sai-There-is-underrun-detected-in-.patch +++ /dev/null @@ -1,39 +0,0 @@ -From 2a7fa96feddb63d36d64336a994dc4132e8a5cd4 Mon Sep 17 00:00:00 2001 -From: Shengjiu Wang <shengjiu.wang@freescale.com> -Date: Mon, 29 Dec 2014 13:40:08 +0800 -Subject: [PATCH] MLK-9974: ASoC: fsl_sai: There is underrun detected in the - beginning sometimes - -Write initial words to SAI FIFO to reduce underrun error - -Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com> -(cherry picked from commit 7ba8ae883d84540fac5ed4147d124399537bc0b3) -(cherry picked from commit f4435f35aa2a97551d2c4a12ca316c354a880f85) ---- - sound/soc/fsl/fsl_sai.c | 7 +++++++ - 1 file changed, 7 insertions(+) - ---- a/sound/soc/fsl/fsl_sai.c -+++ b/sound/soc/fsl/fsl_sai.c -@@ -506,7 +506,9 @@ static int fsl_sai_trigger(struct snd_pc - { - struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai); - bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; -+ u8 channels = substream->runtime->channels; - u32 xcsr, count = 100; -+ int i; - - /* - * Asynchronous mode: Clear SYNC for both Tx and Rx. -@@ -529,6 +531,11 @@ static int fsl_sai_trigger(struct snd_pc - regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx), - FSL_SAI_CSR_FRDE, FSL_SAI_CSR_FRDE); - -+ for (i = 0; tx && i < channels; i++) -+ regmap_write(sai->regmap, FSL_SAI_TDR, 0x0); -+ if (tx) -+ udelay(10); -+ - regmap_update_bits(sai->regmap, FSL_SAI_RCSR, - FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE); - regmap_update_bits(sai->regmap, FSL_SAI_TCSR, |