On Sun, Feb 16, 2014 at 11:25:37AM +0100, Geert Uytterhoeven wrote: > On Sun, Feb 16, 2014 at 10:46 AM, Wolfram Sang <[email protected]> wrote: > > On Sun, Jan 26, 2014 at 04:05:34PM +0000, Ben Dooks wrote: > >> The i2c-rcar driver currently prints an error message if the master_xfer > >> callback fails. However if the bus is being probed then lots of NAKs > >> will be generated, causing the output of a number of errors printed. > >> > >> To solve this, disable the print if the error is not -EREMOTEIO. > >> > >> An example of running i2cdetect: > > > > So, after this patch i2cdetect runs fine for you? I assume you are > > working with the lager/r8a7790 board? With koelsch/r8a7791, it stalls > > the bus :( > > Do you know at which i2c client device it stalls?
It gives errors when it scans for the first device. The errors are different depending on if I use SMBUS_QUICK or BYTE_READ, but the bus is unusable afterwards. I can read/write the eeprom on that bus before I use i2cdetect, but not afterwards.
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