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| author | Max Filippov <[email protected]> | 2013-12-25 12:01:30 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2014-01-08 00:15:39 +0000 |
| commit | 8f668fbbd571bbd5187a9a0eae150b768fc388ac (patch) | |
| tree | 3def8b18a00f20ce2ea41acd3f831450ac982ac7 /drivers/usb/core/buffer.c | |
| parent | USB: fix race between hub_disconnect and recursively_mark_NOTATTACHED (diff) | |
| download | kernel-8f668fbbd571bbd5187a9a0eae150b768fc388ac.tar.gz kernel-8f668fbbd571bbd5187a9a0eae150b768fc388ac.zip | |
USB: c67x00: add proper delays to HPI read/write
According to CY7C67300 specification HPI read and write cycle duration
Tcyc must be at least 6T long, where T is 1/48MHz, which is 125ns.
Without this delay fast host processor cannot write to chip registers.
Add proper ndelay to hpi_{read,write}_reg.
Signed-off-by: Max Filippov <[email protected]>
Acked-by: Peter Korsgaard <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/usb/core/buffer.c')
0 files changed, 0 insertions, 0 deletions