Hi Wolfram, 2016-09-23 21:12 GMT+09:00 Wolfram Sang <wsa@xxxxxxxxxxxxx>: > On Fri, Sep 23, 2016 at 09:04:01PM +0900, Masahiro Yamada wrote: >> Currently, the status register FI2C_SR is checked immediately after >> a STOP condition is issued in case of the deferred STOP condition. >> It takes typically 5-10 usec until the corresponding bits in the >> register are set, so the error check for "stop condition was not >> completed" is very likely to be false positive. >> >> Add wait code to relax the status register check. >> >> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> > > Use readl_poll_timeout? > Yes, thanks for your advice! -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html