[ALSA] Remove PCM sleep_min and tick

The 'tick' in PCM is set (again) via sw_params.  And, nobody uses
this feature at all except for a command line option of aplay.
(This is literally 'nobody', as I checked alsa-lib API calls in all
 programs in major distros.)
Above all, if we need finer wake-ups for the position update, it's
basically an issue that the driver should solve, not tuned by each
application.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 0 insertions, 11 deletions

diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 97cb681502a..cf3af39c351 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -359,7 +359,6 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
         snd_iprintf(buffer, "rate: %u (%u/%u)\n", runtime->rate, runtime->rate_num, runtime->rate_den); 
         snd_iprintf(buffer, "period_size: %lu\n", runtime->period_size);        
         snd_iprintf(buffer, "buffer_size: %lu\n", runtime->buffer_size);        
-        snd_iprintf(buffer, "tick_time: %u\n", runtime->tick_time);
 #if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
         if (substream->oss.oss) {
                 snd_iprintf(buffer, "OSS format: %s\n", snd_pcm_oss_format_name(runtime->oss.format));
@@ -387,7 +386,6 @@ static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry,
         }
         snd_iprintf(buffer, "tstamp_mode: %s\n", snd_pcm_tstamp_mode_name(runtime->tstamp_mode));
         snd_iprintf(buffer, "period_step: %u\n", runtime->period_step);
-        snd_iprintf(buffer, "sleep_min: %u\n", runtime->sleep_min);
         snd_iprintf(buffer, "avail_min: %lu\n", runtime->control->avail_min);
         snd_iprintf(buffer, "start_threshold: %lu\n", runtime->start_threshold);
         snd_iprintf(buffer, "stop_threshold: %lu\n", runtime->stop_threshold);
@@ -764,12 +762,6 @@ static int snd_pcm_dev_free(struct snd_device *device)
         return snd_pcm_free(pcm);
 }
 
-static void snd_pcm_tick_timer_func(unsigned long data)
-{
-        struct snd_pcm_substream *substream = (struct snd_pcm_substream *) data;
-        snd_pcm_tick_elapsed(substream);
-}
-
 int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
                              struct file *file,
                              struct snd_pcm_substream **rsubstream)
@@ -876,9 +868,6 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream,
         memset((void*)runtime->control, 0, size);
 
         init_waitqueue_head(&runtime->sleep);
-        init_timer(&runtime->tick_timer);
-        runtime->tick_timer.function = snd_pcm_tick_timer_func;
-        runtime->tick_timer.data = (unsigned long) substream;
 
         runtime->status->state = SNDRV_PCM_STATE_OPEN;