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41 lines
1.8 KiB
Diff
41 lines
1.8 KiB
Diff
From 27417ac1fa4894dc46d71cc34af17fe6a5186f2f Mon Sep 17 00:00:00 2001
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From: Takashi Iwai <tiwai@suse.de>
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Date: Tue, 4 Sep 2018 17:58:55 +0200
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Subject: [PATCH] staging: bcm2835-audio: Set
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SNDRV_PCM_INFO_SYNC_APPLPTR
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commit b59d6a5f73501f74848d6700101e7736afe3d54a upstream.
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The recent ALSA PCM core supports the SNDRV_PCM_INFO_SYNC_APPLPTR flag
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indicating that the driver needs the ack call at each appl_ptr
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update. This is requirement for the indirect PCM implementations like
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bcm2835-audio driver, too.
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Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
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+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
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@@ -12,7 +12,7 @@
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static const struct snd_pcm_hardware snd_bcm2835_playback_hw = {
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.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
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SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
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- SNDRV_PCM_INFO_DRAIN_TRIGGER),
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+ SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
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.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
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.rate_min = 8000,
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@@ -29,7 +29,7 @@ static const struct snd_pcm_hardware snd
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static const struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = {
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.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
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SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
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- SNDRV_PCM_INFO_DRAIN_TRIGGER),
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+ SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000,
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