On Sun, Jan 20, 2013 at 08:37:02PM +0200, Aaro Koskinen wrote: > Commit 0bdfe0cb803dce699ff337c35d8e97ac355fa417 (i2c: omap: sanitize > exit path) changed the interrupt handler to exit early and complete > the transfer after the draining IRQ is handled. As a result, the ARDY > may not be cleared properly, and it may cause all future I2C transfers > to timeout with "timeout waiting for bus ready". This is reproducible > at least with N900 when twl4030_gpio makes a long write (> FIFO size) > during the probe (http://marc.info/?l=linux-omap&m=135818882610432&w=2). > > The fix is to continue until we get ARDY interrupt that completes the > transfer. Tested with 3.8-rc4 + N900: 20 boots in a row without errors; > without the patch the problem triggers after few reboots. > > Signed-off-by: Aaro Koskinen <[email protected]>
Applied to current and interpreted Felipe's comments as ack. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
