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| author |   Narayanan G <narayanan.gopalakrishnan@stericsson.com> | 2012-02-09 12:41:37 +0530 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@linux.intel.com> | 2012-04-23 17:56:17 +0530 |
| commit | 1bdae6f49c52af3a58998cdb051dbd5b942f9273 (patch) | |
| tree | 4b3ad9b496be8755fb3571593286b3144d364c7b /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | dmaengine: at_hdmac: remove clear-on-read in atc_dostart() (diff) | |
| download | wireguard-linux-1bdae6f49c52af3a58998cdb051dbd5b942f9273.tar.xz wireguard-linux-1bdae6f49c52af3a58998cdb051dbd5b942f9273.zip | |
dma40: Improve the logic of stopping logical chan
can be directly stopped by issuing a SUSPEND_REQ on the EE
bits. There is no need to suspend the physical channel and
restart it.
Also, the support for pre-V2 hw is discontinued.
EE bits for writing:
00: disable only if AS=11 or AS=00
01: enable
10: suspend_req only if AS=01 & EE=01 or EE=11
11: round / no change for writing
Signed-off-by: Narayanan G <narayanan.gopalakrishnan@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions