openwrt/target/linux/brcm2708/patches-4.19/950-0539-bcm2835-pcm.c-Support-multichannel-audio.patch

From 69d7e7d0f958186a0f7667ebeefdb50d1c5c3bd3 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Tue, 30 Apr 2019 19:15:30 +0100
Subject: [PATCH 539/806] bcm2835-pcm.c: Support multichannel audio

---
 .../vc04_services/bcm2835-audio/bcm2835-pcm.c   | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -14,9 +14,9 @@ static const struct snd_pcm_hardware snd
 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
 	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
-	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+	.rates = SNDRV_PCM_RATE_CONTINUOUS |  SNDRV_PCM_RATE_8000_192000,
 	.rate_min = 8000,
-	.rate_max = 48000,
+	.rate_max = 192000,
 	.channels_min = 1,
 	.channels_max = 2,
 	.buffer_bytes_max = 128 * 1024,
@@ -31,15 +31,16 @@ static const struct snd_pcm_hardware snd
 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
-	SNDRV_PCM_RATE_48000,
+	.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,
 	.rate_min = 44100,
-	.rate_max = 48000,
+	.rate_max = 192000,
 	.channels_min = 2,
-	.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,
 };