1 files changed, 0 insertions, 89 deletions
diff --git a/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch b/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch
deleted file mode 100644
index 552f811d6b..0000000000
--- a/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch
+++ /dev/null
@@ -1,89 +0,0 @@
-From 8a5087fe59e31efb8641e704058328997c3c8ff1 Mon Sep 17 00:00:00 2001
-From: Maarten ter Huurne <maarten@treewalker.org>
-Date: Wed, 10 Aug 2011 00:25:11 +0200
-Subject: [PATCH 16/21] ASoC: JZ4740: Support buffer size that is not a
- multiple of period size.
-
-This fixes glitches triggered by libao, which sets time-based intervals
-instead of byte-based intervals like SDL does.
-
-Thanks to Paul Cercueil for figuring out that the buffer size was causing
-the glitches and to Lars Clausen for helping me write the fix.
----
- sound/soc/jz4740/jz4740-pcm.c |   21 ++++++++++++++++++---
- 1 files changed, 18 insertions(+), 3 deletions(-)
-
---- a/sound/soc/jz4740/jz4740-pcm.c
-+++ b/sound/soc/jz4740/jz4740-pcm.c
-@@ -31,6 +31,7 @@
- 
- struct jz4740_runtime_data {
- 	unsigned long dma_period;
-+	unsigned long dma_period_left;
- 	dma_addr_t dma_start;
- 	dma_addr_t dma_pos;
- 	dma_addr_t dma_end;
-@@ -67,10 +68,13 @@ static void jz4740_pcm_start_transfer(st
- 	if (prtd->dma_pos == prtd->dma_end)
- 		prtd->dma_pos = prtd->dma_start;
- 
--	if (prtd->dma_pos + prtd->dma_period > prtd->dma_end)
-+	if (prtd->dma_period_left == 0)
-+		prtd->dma_period_left = prtd->dma_period;
-+
-+	if (prtd->dma_pos + prtd->dma_period_left > prtd->dma_end)
- 		count = prtd->dma_end - prtd->dma_pos;
- 	else
--		count = prtd->dma_period;
-+		count = prtd->dma_period_left;
- 
- 	jz4740_dma_disable(prtd->dma);
- 
-@@ -85,6 +89,7 @@ static void jz4740_pcm_start_transfer(st
- 	jz4740_dma_set_transfer_count(prtd->dma, count);
- 
- 	prtd->dma_pos += count;
-+	prtd->dma_period_left -= count;
- 
- 	jz4740_dma_enable(prtd->dma);
- }
-@@ -96,7 +101,8 @@ static void jz4740_pcm_dma_transfer_done
- 	struct snd_pcm_runtime *runtime = substream->runtime;
- 	struct jz4740_runtime_data *prtd = runtime->private_data;
- 
--	snd_pcm_period_elapsed(substream);
-+	if (prtd->dma_period_left == 0)
-+		snd_pcm_period_elapsed(substream);
- 
- 	jz4740_pcm_start_transfer(prtd, substream);
- }
-@@ -133,6 +139,7 @@ static int jz4740_pcm_hw_params(struct s
- 	runtime->dma_bytes = params_buffer_bytes(params);
- 
- 	prtd->dma_period = params_period_bytes(params);
-+	prtd->dma_period_left = 0;
- 	prtd->dma_start = runtime->dma_addr;
- 	prtd->dma_pos = prtd->dma_start;
- 	prtd->dma_end = prtd->dma_start + runtime->dma_bytes;
-@@ -160,6 +167,7 @@ static int jz4740_pcm_prepare(struct snd
- 	if (!prtd->dma)
- 		return -EBUSY;
- 
-+	prtd->dma_period_left = 0;
- 	prtd->dma_pos = prtd->dma_start;
- 
- 	return 0;
-@@ -219,6 +227,13 @@ static int jz4740_pcm_open(struct snd_pc
- 	if (prtd == NULL)
- 		return -ENOMEM;
- 
-+	/* Force period and buffer size to be a multiple of the DMA transfer
-+	 * size, which is 16 bytes. */
-+	snd_pcm_hw_constraint_step(runtime, 0,
-+				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 16);
-+	snd_pcm_hw_constraint_step(runtime, 0,
-+				   SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
-+
- 	snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware);
- 
- 	runtime->private_data = prtd;