Charlie Mooney 9c45a309b9 Snow: Make i2c slave work in interrupt context ...

To make software Sync work, they need to be able to call
i2c_send_response() from within host_command_received() while still in
an interrupt context.  This won't work if you're using interrupts to
know when the dma transfer has completed.  This puts a switch in that
will toggle between interrupts and polling the interrupt flag based on
if the program in in an interrupt context or not.

BUG=chrome-os-partner:12688
TEST=Run "battery" "pmu" boot the machine and use the keyboard.  Then
replace the in_interrupt_context() function with "0" to force it to use
polling and repeat the test.  Everything should work in both cases.

Change-Id: Ie989c1a6ad29529a7ec390065b310ad4af8cf0bf
Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/30483
Reviewed-by: Simon Glass <sjg@chromium.org>

2012-08-15 18:11:00 -07:00

..

lm4

Initialize temperature reading buffer to sane values

2012-08-13 23:33:44 -07:00

stm32

Snow: Make i2c slave work in interrupt context

2012-08-15 18:11:00 -07:00