1 files changed, 0 insertions, 63 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-1176-ASoC-dwc-Fix-full-duplex-mode.patch b/target/linux/bcm27xx/patches-6.1/950-1176-ASoC-dwc-Fix-full-duplex-mode.patch
deleted file mode 100644
index f4b7098fae..0000000000
--- a/target/linux/bcm27xx/patches-6.1/950-1176-ASoC-dwc-Fix-full-duplex-mode.patch
+++ /dev/null
@@ -1,63 +0,0 @@
-From cbc65d9c95088d1437a5a84c7d6628b8d27a86f1 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Tue, 28 Nov 2023 12:14:03 +0000
-Subject: [PATCH] ASoC: dwc: Fix full-duplex mode
-
-Configuration of the DMA register was carelessly zeroing bits that may
-used by a stream in the other direction. Preserve them instead.
-
-See: https://github.com/raspberrypi/linux/issues/5741
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- sound/soc/dwc/dwc-i2s.c | 20 +++++++++++++-------
- 1 file changed, 13 insertions(+), 7 deletions(-)
-
---- a/sound/soc/dwc/dwc-i2s.c
-+++ b/sound/soc/dwc/dwc-i2s.c
-@@ -189,10 +189,17 @@ static void dw_i2s_config(struct dw_i2s_
- {
- 	struct i2s_clk_config_data *config = &dev->config;
- 	u32 ch_reg;
--	u32 dmacr = 0;
-+	u32 dmacr;
- 
- 	i2s_disable_channels(dev, stream);
- 
-+	dmacr = i2s_read_reg(dev->i2s_base, DMACR);
-+
-+	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
-+		dmacr &= ~(DMACR_DMAEN_TXCH0 * 0xf);
-+	else
-+		dmacr &= ~(DMACR_DMAEN_RXCH0 * 0xf);
-+
- 	for (ch_reg = 0; ch_reg < (config->chan_nr / 2); ch_reg++) {
- 		if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- 			i2s_write_reg(dev->i2s_base, TCR(ch_reg),
-@@ -210,10 +217,6 @@ static void dw_i2s_config(struct dw_i2s_
- 			dmacr |= (DMACR_DMAEN_RXCH0 << ch_reg);
- 		}
- 	}
--	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
--		dmacr |= DMACR_DMAEN_TX;
--	else if (stream == SNDRV_PCM_STREAM_CAPTURE)
--		dmacr |= DMACR_DMAEN_RX;
- 
- 	i2s_write_reg(dev->i2s_base, DMACR, dmacr);
- }
-@@ -319,10 +322,13 @@ static int dw_i2s_startup(struct snd_pcm
- 
- 	dw_i2s_config(dev, substream->stream);
- 	dmacr = i2s_read_reg(dev->i2s_base, DMACR);
--	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- 		dma_data = &dev->play_dma_data;
--	else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
-+		dmacr |= DMACR_DMAEN_TX;
-+	} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
- 		dma_data = &dev->capture_dma_data;
-+		dmacr |= DMACR_DMAEN_RX;
-+	}
- 
- 	snd_soc_dai_set_dma_data(cpu_dai, substream, (void *)dma_data);
- 	i2s_write_reg(dev->i2s_base, DMACR, dmacr);