diff options
| author | Stephen Warren <swarren@nvidia.com> | 2012-04-04 15:48:28 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-13 11:29:16 +0100 |
| commit | a42678c4c8b5f6d489829ffc3071fa1f08ee99d1 (patch) | |
| tree | 94d3445cc6e269686d759f319b9bc38a316bb7e4 /drivers/rtc/rtc-dev.c | |
| parent | 26b5e74d318241d95430d440e43ebbdfab3c70d4 (diff) | |
regmap: introduce fast_io busses, and use a spinlock for them
Some bus types have very fast IO. For these, acquiring a mutex for every
IO operation is a significant overhead. Allow busses to indicate their IO
is fast, and enhance regmap to use a spinlock for those busses.
[Currently limited to native endian registers -- broonie]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/rtc/rtc-dev.c')
0 files changed, 0 insertions, 0 deletions