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  1. 13 1月, 2014 1 次提交
  3. 11 1月, 2014 2 次提交
  5. 10 1月, 2014 1 次提交
    • S
      ALSA: ctxfi - Work around emu20k1 glitch to prevent buffered sound data loss · e240a469
      由 Sarah Bessmer 提交于 
      Occasionally, on playback stream ringbuffer wraparound, the EMU20K1
hardware will momentarily return 0 instead of the proper current(loop)
address. This patch handles that case, fixing the problem of playback
position corruption and subsequent loss of buffered sound data, that
occurs with some common buffering layout patterns(e.g. multiple
simultaneous output streams with differently-sized or
non-power-of-2-sized buffers).

An alternate means of fixing the problem would be to read the ca
register continuously, until two sequential reads return the same
value; however, that would be a more invasive change, has performance
implications, and isn't necessary unless there are also issues with the
value not being updated atomically in regards to individual bits or
something similar(which I have not encountered through light testing).

I have no EMU20K2 hardware to confirm if the issue is present there,
but even if it's not, this change shouldn't break anything that's not
already broken.
Signed-off-by: NSarah Bessmer <aotos@fastmail.fm>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      e240a469
  7. 09 1月, 2014 7 次提交
  9. 08 1月, 2014 8 次提交
  11. 05 1月, 2014 8 次提交
  13. 02 1月, 2014 8 次提交
  15. 01 1月, 2014 3 次提交
    • X
      ASoC: simple-card: Add device's module clock selection. · 71467e46
      由 Xiubo Li 提交于 
      Try to get the device's module clock if the dt has no clocks and
system-clock-frequency properties.
Signed-off-by: NXiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: NMark Brown <broonie@linaro.org>
      71467e46
    • N
      ASoC: imx-spdif: Use snd-soc-dummy CODEC driver to link card · 14c3aa98
      由 Nicolin Chen 提交于 
      This is a quick fix for the below two issues when building spdif as modules.

1) If modprobing modules in order: (Step 1) snd-soc-fsl-spdif -> (Step 2)
snd-soc-imx-spdif -> (Step 3) snd-soc-spdif-tx/rx, we will fail to create
imx-spdif card and dai link unless we rmmod snd-soc-imx-spdif and modprobe
it again due to the execution platform_driver_unregister() in probe() when
meeting -EPROBE_DEFER at Step 2.

2) After "imx-spdif sound-spdif.17: dit-hifi <-> 2004000.spdif mapping ok",
'rmmod snd-soc-imx-spdif' would cause kernel dump with warning:
WARNING: CPU: 0 PID: 1301 at /home/rmk/git/linux-rmk/fs/sysfs/dir.c:915 sysfs_hash_and_remove+0x84/0x90()
sysfs: can not remove 'dapm_widget', no directory
This should be caused by disordered resourse releasing of the whole link.
And trying to unregister the card and then CODEC dev can't fix this issue.

Thus this patch just provides a simple fix to these two bugs by using the
snd-soc-dummy in the core instead of seperate snd-soc-spdif-tx/rx so that
there's no need to handle the registering and unregistering of CODEC or
CODEC dai any more.
Signed-off-by: NNicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: NMark Brown <broonie@linaro.org>
      14c3aa98
    • X
      ASoC: core: Fix the DAI name getting. · e41975ed
      由 Xiubo Li 提交于 
      From "ASoC: make snd_soc_dai_link more symmetrical", can we see that
the name of CPU DAI maybe omitted. If the DAI name is omitted, try to
use the component name instead.
Signed-off-by: NXiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: NMark Brown <broonie@linaro.org>
      e41975ed
  17. 31 12月, 2013 2 次提交