Re: [PATCH] i2c: uniphier-f: fix misdetection of incomplete STOP condition

2016-09-23 Thread Masahiro Yamada
Hi Wolfram, 2016-09-23 21:12 GMT+09:00 Wolfram Sang : > 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 unt

Re: [PATCH] i2c: uniphier-f: fix misdetection of incomplete STOP condition

2016-09-23 Thread Wolfram Sang
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 e

[PATCH] i2c: uniphier-f: fix misdetection of incomplete STOP condition

2016-09-23 Thread Masahiro Yamada
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 fa