diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0388-Revert-bcm2835-interpolate-audio-delay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0388-Revert-bcm2835-interpolate-audio-delay.patch | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0388-Revert-bcm2835-interpolate-audio-delay.patch b/target/linux/brcm2708/patches-4.19/950-0388-Revert-bcm2835-interpolate-audio-delay.patch deleted file mode 100644 index 9b4f6d741b..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0388-Revert-bcm2835-interpolate-audio-delay.patch +++ /dev/null @@ -1,71 +0,0 @@ -From 83251570f16ec848694dac016cbdb55b1d28496d Mon Sep 17 00:00:00 2001 -From: popcornmix <popcornmix@gmail.com> -Date: Mon, 29 Apr 2019 19:16:14 +0100 -Subject: [PATCH] Revert "bcm2835: interpolate audio delay" - -commit fb4b9f02986fcb5ae751106ef9b027806b5dd750 upstream. - -This reverts commit fb8cc99f05687ca5565dc53a7ee0dd86aefad952. ---- - .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 12 +----------- - .../staging/vc04_services/bcm2835-audio/bcm2835.h | 1 - - 2 files changed, 1 insertion(+), 12 deletions(-) - ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c -@@ -11,7 +11,7 @@ - /* hardware definition */ - 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_BATCH), -+ SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID), - .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, - .rate_min = 8000, -@@ -81,8 +81,6 @@ void bcm2835_playback_fifo(struct bcm283 - alsa_stream->pos %= alsa_stream->buffer_size; - } - -- alsa_stream->interpolate_start = ktime_get_ns(); -- - if (alsa_stream->substream) { - if (new_period) - snd_pcm_period_elapsed(alsa_stream->substream); -@@ -308,7 +306,6 @@ static int snd_bcm2835_pcm_prepare(struc - alsa_stream->buffer_size = snd_pcm_lib_buffer_bytes(substream); - alsa_stream->period_size = snd_pcm_lib_period_bytes(substream); - alsa_stream->pos = 0; -- alsa_stream->interpolate_start = ktime_get_ns(); - - audio_debug("buffer_size=%d, period_size=%d pos=%d frame_bits=%d\n", - alsa_stream->buffer_size, alsa_stream->period_size, -@@ -400,19 +397,12 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_s - { - struct snd_pcm_runtime *runtime = substream->runtime; - struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; -- u64 now = ktime_get_ns(); - - audio_debug("pcm_pointer... (%d) hwptr=%d appl=%d pos=%d\n", 0, - frames_to_bytes(runtime, runtime->status->hw_ptr), - frames_to_bytes(runtime, runtime->control->appl_ptr), - alsa_stream->pos); - -- /* Give userspace better delay reporting by interpolating between GPU -- * notifications, assuming audio speed is close enough to the clock -- * used for ktime */ -- if (alsa_stream->interpolate_start && alsa_stream->interpolate_start < now) -- runtime->delay = -(int)div_u64((now - alsa_stream->interpolate_start) * runtime->rate, 1000000000); -- - return snd_pcm_indirect_playback_pointer(substream, - &alsa_stream->pcm_indirect, - alsa_stream->pos); ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h -@@ -133,7 +133,6 @@ struct bcm2835_alsa_stream { - unsigned int pos; - unsigned int buffer_size; - unsigned int period_size; -- u64 interpolate_start; - - atomic_t retrieved; - struct bcm2835_audio_instance *instance; |