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  1. 18 5月, 2009 2 次提交
    • M
      ASoC: Integrate bias management with DAPM power management · 452c5eaa
      由 Mark Brown 提交于 
      Rather than managing the bias level of the system based on if there is
an active audio stream manage it based on there being an active DAPM
widget. This simplifies the code a little, moving the power handling
into one place, and improves audio performance for bypass paths when no
playbacks or captures are active.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      452c5eaa
    • M
      ASoC: Split DAPM power checks from sequencing of power changes · 6d3ddc81
      由 Mark Brown 提交于 
      DAPM has always applied any changes to the power state of widgets as soon
as it has determined that they are required. Instead of doing this store
all the changes that are required on lists of widgets to power up and
down, then iterate over those lists and apply the changes. This changes
the sequence in which changes are implemented, doing all power downs
before power ups and always using the up/down sequences (previously they
were only used when changes were due to DAC/ADC power events). The error
handling is also changed so that we continue attempting to power widgets
if some changes fail.

The main benefit of this is to allow future changes to do optimisations
over the whole power sequence and to reduce the number of walks of the
widget graph required to check the power status of widgets.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      6d3ddc81
  3. 23 4月, 2009 1 次提交
    • M
      ASoC: Add power supply widget to DAPM · 246d0a17
      由 Mark Brown 提交于 
      Many modern CODECs have shared resources on chip which must be enabled
for portions of the chip to work but which can be disabled at other times
in order to achieve power savings. Examples of such resources include
power supplies and some internal clocks.

Since these widgets are dependencies for the audio path but do not carry
audio signals they require slightly different handling to most widgets -
they do not contribute to the audio path and so should not be counted as
either inputs or outputs during path walks.

Cases where one supply provides a supply for another will require
additional work. There is also room for more optimisation of the graph
walking to avoid repeated checks for the same thing.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      246d0a17
  5. 21 4月, 2009 1 次提交
  7. 13 4月, 2009 1 次提交
  9. 01 3月, 2009 1 次提交
  11. 23 1月, 2009 1 次提交
  13. 09 1月, 2009 1 次提交
  15. 08 1月, 2009 2 次提交
  17. 06 1月, 2009 1 次提交
  19. 16 10月, 2008 1 次提交
  21. 13 10月, 2008 1 次提交
  23. 29 7月, 2008 1 次提交
  25. 10 7月, 2008 1 次提交
  27. 26 6月, 2008 1 次提交
  29. 19 5月, 2008 4 次提交
  31. 01 2月, 2008 4 次提交
  33. 09 2月, 2007 1 次提交