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author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2017-04-19 20:13:46 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-06 07:47:40 -0300 |
commit | 427de05cf20f6b3bbcc79a6f3511fa13797fbdbe (patch) | |
tree | 2e2cab5de16f726dad51a6c56b3e4d68473049f1 /Documentation/trace/tracepoint-analysis.txt | |
parent | bb750c7b4cecd6c9d12f41cb71e301141bad8835 (diff) |
[media] au8522: rework setup of audio routing
The original code was based on my reverse engineering of an I2C trace
of the Windows driver. Now that I know what the registers actually do,
restructure the code a bit, removing some unneeded register programming
and fixing the sequencing of operations.
This reduces the time it takes to change inputs from 1300ms down to
600ms (as measured by "time v4l2-ctl -i 0")
Note this does not address outstanding issues related to the management
of the module clocks and power control for the various blocks, which
will be done in a separate patch.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/trace/tracepoint-analysis.txt')
0 files changed, 0 insertions, 0 deletions