1 files changed, 0 insertions, 107 deletions
diff --git a/target/linux/layerscape/patches-5.4/801-audio-0028-MLK-15927-1-ASoC-fsl_sai-Fix-noise-when-using-EDMA.patch b/target/linux/layerscape/patches-5.4/801-audio-0028-MLK-15927-1-ASoC-fsl_sai-Fix-noise-when-using-EDMA.patch
deleted file mode 100644
index 71554d295a..0000000000
--- a/target/linux/layerscape/patches-5.4/801-audio-0028-MLK-15927-1-ASoC-fsl_sai-Fix-noise-when-using-EDMA.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-From 3b671c297cff1ba5f5c3e089ffa82523eca3c598 Mon Sep 17 00:00:00 2001
-From: Mihai Serban <mihai.serban@nxp.com>
-Date: Fri, 7 Jul 2017 15:09:51 +0300
-Subject: [PATCH] MLK-15927-1: ASoC: fsl_sai: Fix noise when using EDMA
-
-EDMA requires the period size to be multiple of maxburst. Otherwise the
-remaining bytes are not transferred and thus noise is produced.
-
-We can handle this issue by adding a constraint on
-SNDRV_PCM_HW_PARAM_PERIOD_SIZE to be multiple of tx/rx maxburst value.
-
-This is based on a similar patch we have for ESAI:
-commit bd3f3eb2a37c
-("MLK-15109-2: ASoC: fsl_esai: add constrain_period_size")
-
-Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
-Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
----
- sound/soc/fsl/fsl_sai.c | 23 +++++++++++++++++++++++
- sound/soc/fsl/fsl_sai.h |  2 ++
- 2 files changed, 25 insertions(+)
-
---- a/sound/soc/fsl/fsl_sai.c
-+++ b/sound/soc/fsl/fsl_sai.c
-@@ -35,6 +35,7 @@ static struct fsl_sai_soc_data fsl_sai_v
- 	.fifos = 1,
- 	.fifo_depth = 32,
- 	.flags = 0,
-+	.constrain_period_size = false,
- };
- 
- static struct fsl_sai_soc_data fsl_sai_imx6sx = {
-@@ -44,6 +45,7 @@ static struct fsl_sai_soc_data fsl_sai_i
- 	.fifo_depth = 32,
- 	.flags = 0,
- 	.reg_offset = 0,
-+	.constrain_period_size = false,
- };
- 
- static struct fsl_sai_soc_data fsl_sai_imx6ul = {
-@@ -53,6 +55,7 @@ static struct fsl_sai_soc_data fsl_sai_i
- 	.fifo_depth = 32,
- 	.flags = 0,
- 	.reg_offset = 0,
-+	.constrain_period_size = false,
- };
- 
- static struct fsl_sai_soc_data fsl_sai_imx7ulp = {
-@@ -62,6 +65,7 @@ static struct fsl_sai_soc_data fsl_sai_i
- 	.fifo_depth = 16,
- 	.flags = SAI_FLAG_PMQOS,
- 	.reg_offset = 0,
-+	.constrain_period_size = false,
- };
- 
- static struct fsl_sai_soc_data fsl_sai_imx8mq = {
-@@ -71,6 +75,17 @@ static struct fsl_sai_soc_data fsl_sai_i
- 	.fifo_depth = 32,
- 	.flags = 0,
- 	.reg_offset = 8,
-+	.constrain_period_size = false,
-+};
-+
-+static struct fsl_sai_soc_data fsl_sai_imx8qm = {
-+	.imx = true,
-+	.dataline = 0x3,
-+	.fifos = 1,
-+	.fifo_depth = 32,
-+	.flags = 0,
-+	.reg_offset = 0,
-+	.constrain_period_size = true,
- };
- 
- static const unsigned int fsl_sai_rates[] = {
-@@ -692,6 +707,13 @@ static int fsl_sai_startup(struct snd_pc
- 			   FSL_SAI_CR3_TRCE_MASK,
- 			   FSL_SAI_CR3_TRCE(sai->dataline[tx]));
- 
-+	/* EDMA engine needs periods of size multiple of tx/rx maxburst */
-+	if (sai->soc->constrain_period_size)
-+		snd_pcm_hw_constraint_step(substream->runtime, 0,
-+					   SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
-+					   tx ? sai->dma_params_tx.maxburst :
-+					   sai->dma_params_rx.maxburst);
-+
- 	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
- 			SNDRV_PCM_HW_PARAM_RATE, &fsl_sai_rate_constraints);
- 
-@@ -914,6 +936,7 @@ static const struct of_device_id fsl_sai
- 	{ .compatible = "fsl,imx6ul-sai", .data = &fsl_sai_imx6ul },
- 	{ .compatible = "fsl,imx7ulp-sai", .data = &fsl_sai_imx7ulp },
- 	{ .compatible = "fsl,imx8mq-sai", .data = &fsl_sai_imx8mq },
-+	{ .compatible = "fsl,imx8qm-sai", .data = &fsl_sai_imx8qm },
- 	{ /* sentinel */ }
- };
- MODULE_DEVICE_TABLE(of, fsl_sai_ids);
---- a/sound/soc/fsl/fsl_sai.h
-+++ b/sound/soc/fsl/fsl_sai.h
-@@ -147,6 +147,8 @@ struct fsl_sai_soc_data {
- 	unsigned int flags;
- 	unsigned char reg_offset;
- 	bool imx;
-+	/* True for EDMA because it needs period size multiple of maxburst */
-+	bool constrain_period_size;
- };
- 
- struct fsl_sai {