Commit 001c6bb6 authored by Dom Cobley's avatar Dom Cobley Committed by Greg Kroah-Hartman
Browse files

staging: bcm2835-pcm: Allow up to 8 channels and 192kHz data rate 



The firmware driver can support this, so allow it to be selected
Increase the buffer sizes to handle the higher data rates.

Reviewed-by: default avatarNicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: default avatarDom Cobley <popcornmix@gmail.com>
Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1617373688-8715-1-git-send-email-stefan.wahren@i2se.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9ebd42d8

drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c

+5 −5
Original line number Diff line number Diff line
@@ -14,14 +14,14 @@ static const struct snd_pcm_hardware snd_bcm2835_playback_hw = { 
		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |

		 SNDRV_PCM_INFO_SYNC_APPLPTR | SNDRV_PCM_INFO_BATCH),

	.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,

	.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,

};