Louis Yung-Chieh Lo 088b79f285 Use udelay for more stable manual IRQ firing. ...

Original code tests SND bit, but it is not reliable to indicate the
SERIRQ frame has been sent out because the EC always clears it
immediately. Unfortunately the SIRQRIS is always asserted in
continuous mode so that we cannot rely on it.

So, the udelay(4us) method is the best way we can use now.

Note: the quiet mode? Forget it. My EC never sends out further frames
      after the first has been sent.

BUG=none
TEST=on bds board.

Change-Id: Ica79b463f3dbe7435fe75f3db4cef00ad7ad5ec0

2012-02-03 12:38:42 +08:00

..

lm4

Use udelay for more stable manual IRQ firing.

2012-02-03 12:38:42 +08:00

stm32l

stm32l: basic GPIO support

2012-02-03 02:00:27 +00:00