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| author |   Igor Plyatov <plyatov@gmail.com> | 2015-08-14 20:11:02 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-08-17 14:27:23 -0700 |
| commit | 776829de90c5972895db398993ddfa9417ff8b01 (patch) | |
| tree | 7a04ac57c817c75c666d866527daa35fb4241176 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | Merge tag 'mac80211-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 (diff) | |
| download | wireguard-linux-776829de90c5972895db398993ddfa9417ff8b01.tar.xz wireguard-linux-776829de90c5972895db398993ddfa9417ff8b01.zip | |
net: phy: workaround for buggy cable detection by LAN8700 after cable plugging
* Due to HW bug, LAN8700 sometimes does not detect presence of energy in the
Ethernet cable in Energy Detect Power-Down mode (e.g while EDPWRDOWN bit is
set, the ENERGYON bit does not asserted sometimes). This is a common bug of
LAN87xx family of PHY chips.
* The lan87xx_read_status() was improved to acquire ENERGYON bit. Its previous
algorythm still not reliable on 100 % and sometimes skip cable plugging.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions