Messages in this thread | | | From | Masahiro Yamada <> | Date | Fri, 23 Sep 2016 22:33:47 +0900 | Subject | Re: [PATCH] i2c: uniphier-f: fix misdetection of incomplete STOP condition |
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Hi Wolfram,
2016-09-23 21:12 GMT+09:00 Wolfram Sang <wsa@the-dreams.de>: > 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@socionext.com> > > Use readl_poll_timeout? >
Yes, thanks for your advice!
-- Best Regards Masahiro Yamada
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