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| author |   Peter Chen <peter.chen@freescale.com> | 2013-08-14 12:44:12 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-14 12:37:20 -0700 |
| commit | 22fa84455a2a80566ead8efe4b5e629f2375da60 (patch) | |
| tree | c77615fc9011a7ab64dbe17082f85f0ae1b36c3d /tools/perf/scripts/python/syscall-counts.py | |
| parent | usb: chipidea: add vbus interrupt handler (diff) | |
| download | linux-dev-22fa84455a2a80566ead8efe4b5e629f2375da60.tar.xz linux-dev-22fa84455a2a80566ead8efe4b5e629f2375da60.zip | |
usb: chipidea: add wait vbus lower than OTGSC_BSV before role starts
When the gadget role starts, we need to make sure the vbus is lower
than OTGSC_BSV, or there will be an vbus interrupt since we use
B_SESSION_VALID as vbus interrupt to indicate connect and disconnect.
When the host role starts, it may not be useful to wait vbus to lower
than OTGSC_BSV, but it can indicate some hardware problems like the
vbus is still higher than OTGSC_BSV after we disconnect to host some
time later (5000 milliseconds currently), which is obvious not correct.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions