diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0312-Revert-bcm2835-interpolate-audio-delay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0312-Revert-bcm2835-interpolate-audio-delay.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0312-Revert-bcm2835-interpolate-audio-delay.patch b/target/linux/brcm2708/patches-4.4/0312-Revert-bcm2835-interpolate-audio-delay.patch deleted file mode 100644 index 66e06abd42..0000000000 --- a/target/linux/brcm2708/patches-4.4/0312-Revert-bcm2835-interpolate-audio-delay.patch +++ /dev/null @@ -1,70 +0,0 @@ -From 168e9978c48f0bc90618b6bb1de412a87f97805d Mon Sep 17 00:00:00 2001 -From: popcornmix <popcornmix@gmail.com> -Date: Fri, 29 Apr 2016 17:27:37 +0100 -Subject: [PATCH] Revert "bcm2835: interpolate audio delay" - -This reverts commit 83eca613d0eddd2c8299f114b8fe573ccaffdefc. ---- - sound/arm/bcm2835-pcm.c | 12 +----------- - sound/arm/bcm2835.h | 1 - - 2 files changed, 1 insertion(+), 12 deletions(-) - ---- a/sound/arm/bcm2835-pcm.c -+++ b/sound/arm/bcm2835-pcm.c -@@ -25,7 +25,7 @@ - /* hardware definition */ - static 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, -@@ -99,8 +99,6 @@ static irqreturn_t bcm2835_playback_fifo - 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); -@@ -401,7 +399,6 @@ 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, -@@ -498,7 +495,6 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_s - { - struct snd_pcm_runtime *runtime = substream->runtime; - bcm2835_alsa_stream_t *alsa_stream = runtime->private_data; -- u64 now = ktime_get_ns(); - - audio_info(" .. IN\n"); - -@@ -507,12 +503,6 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_s - 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); -- - audio_info(" .. OUT\n"); - return snd_pcm_indirect_playback_pointer(substream, - &alsa_stream->pcm_indirect, ---- a/sound/arm/bcm2835.h -+++ b/sound/arm/bcm2835.h -@@ -137,7 +137,6 @@ typedef struct bcm2835_alsa_stream { - unsigned int pos; - unsigned int buffer_size; - unsigned int period_size; -- u64 interpolate_start; - - uint32_t enable_fifo_irq; - irq_handler_t fifo_irq_handler; |