1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-1007-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch b/target/linux/bcm27xx/patches-5.4/950-1007-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch
new file mode 100644
index 0000000000..a41d16edaf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-1007-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch
@@ -0,0 +1,55 @@
+From 88bddc0f26024c64e1e17562dea77d8a50e1f1d0 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 27 Oct 2020 12:24:14 +0000
+Subject: [PATCH] bcm2835-pcm: Fix up multichannel pcm audio
+
+Fixes: a9c1660ff5f02d048c5f31abf1fd1108ccf9ef87
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 21 +++++++++----------
+ 1 file changed, 10 insertions(+), 11 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+@@ -14,14 +14,14 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_CONTINUOUS |  SNDRV_PCM_RATE_8000_192000,
++	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
+ 	.rate_min = 8000,
+ 	.rate_max = 192000,
+ 	.channels_min = 1,
+-	.channels_max = 2,
+-	.buffer_bytes_max = 128 * 1024,
++	.channels_max = 8,
++	.buffer_bytes_max = 512 * 1024,
+ 	.period_bytes_min = 1 * 1024,
+-	.period_bytes_max = 128 * 1024,
++	.period_bytes_max = 512 * 1024,
+ 	.periods_min = 1,
+ 	.periods_max = 128,
+ };
+@@ -31,16 +31,15 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+-	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+-	SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
++	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
++	SNDRV_PCM_RATE_48000,
+ 	.rate_min = 44100,
+-	.rate_max = 192000,
++	.rate_max = 48000,
+ 	.channels_min = 2,
+-	.channels_max = 8,
+-	.buffer_bytes_max = 512 * 1024,
++	.channels_max = 2,
++	.buffer_bytes_max = 128 * 1024,
+ 	.period_bytes_min = 1 * 1024,
+-	.period_bytes_max = 512 * 1024,
++	.period_bytes_max = 128 * 1024,
+ 	.periods_min = 1,
+ 	.periods_max = 128,
+ };