diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0117-ASoC-bcm2835-Support-additional-samplerates-up-to-38.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0117-ASoC-bcm2835-Support-additional-samplerates-up-to-38.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0117-ASoC-bcm2835-Support-additional-samplerates-up-to-38.patch b/target/linux/brcm2708/patches-4.14/950-0117-ASoC-bcm2835-Support-additional-samplerates-up-to-38.patch new file mode 100644 index 0000000000..4036fc5d6d --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0117-ASoC-bcm2835-Support-additional-samplerates-up-to-38.patch @@ -0,0 +1,43 @@ +From d72ed21ec11a87f1fdc0d58f7af1dada3361d57b Mon Sep 17 00:00:00 2001 +From: Matthias Reichl <hias@horus.com> +Date: Sun, 7 May 2017 16:19:54 +0200 +Subject: [PATCH 117/454] ASoC: bcm2835: Support additional samplerates up to + 384kHz + +Sample rates are only restricted by the capabilities of the +clock driver, so use SNDRV_PCM_RATE_CONTINUOUS instead of +SNDRV_PCM_RATE_8000_192000. + +Tests (eg with pcm5122) have shown that bcm2835 works fine +in 384kHz/32bit stereo mode, so change the maximum allowed +rate from 192kHz to 384kHz. + +Signed-off-by: Matthias Reichl <hias@horus.com> +--- + sound/soc/bcm/bcm2835-i2s.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +--- a/sound/soc/bcm/bcm2835-i2s.c ++++ b/sound/soc/bcm/bcm2835-i2s.c +@@ -765,7 +765,9 @@ static struct snd_soc_dai_driver bcm2835 + .playback = { + .channels_min = 2, + .channels_max = 2, +- .rates = SNDRV_PCM_RATE_8000_192000, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .rate_min = 8000, ++ .rate_max = 384000, + .formats = SNDRV_PCM_FMTBIT_S16_LE + | SNDRV_PCM_FMTBIT_S24_LE + | SNDRV_PCM_FMTBIT_S32_LE +@@ -773,7 +775,9 @@ static struct snd_soc_dai_driver bcm2835 + .capture = { + .channels_min = 2, + .channels_max = 2, +- .rates = SNDRV_PCM_RATE_8000_192000, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .rate_min = 8000, ++ .rate_max = 384000, + .formats = SNDRV_PCM_FMTBIT_S16_LE + | SNDRV_PCM_FMTBIT_S24_LE + | SNDRV_PCM_FMTBIT_S32_LE |