diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch b/target/linux/bcm27xx/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch new file mode 100644 index 0000000000..5b38ca5e31 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch @@ -0,0 +1,40 @@ +From 27417ac1fa4894dc46d71cc34af17fe6a5186f2f Mon Sep 17 00:00:00 2001 +From: Takashi Iwai <tiwai@suse.de> +Date: Tue, 4 Sep 2018 17:58:55 +0200 +Subject: [PATCH] staging: bcm2835-audio: Set + SNDRV_PCM_INFO_SYNC_APPLPTR + +commit b59d6a5f73501f74848d6700101e7736afe3d54a upstream. + +The recent ALSA PCM core supports the SNDRV_PCM_INFO_SYNC_APPLPTR flag +indicating that the driver needs the ack call at each appl_ptr +update. This is requirement for the indirect PCM implementations like +bcm2835-audio driver, too. + +Signed-off-by: Takashi Iwai <tiwai@suse.de> +Tested-by: Stefan Wahren <stefan.wahren@i2se.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c ++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c +@@ -12,7 +12,7 @@ + static const struct snd_pcm_hardware snd_bcm2835_playback_hw = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | +- SNDRV_PCM_INFO_DRAIN_TRIGGER), ++ 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, + .rate_min = 8000, +@@ -29,7 +29,7 @@ static const struct snd_pcm_hardware snd + static const struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | +- SNDRV_PCM_INFO_DRAIN_TRIGGER), ++ 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, |