On 2016-08-09 06:01:48 +0000, Kuninori Morimoto wrote: > > Hi duclm > > > root@linaro-nano:~# cd /sys/bus/platform/drivers/i2c-rcar; find -type l > > ./e6510000.i2c > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# echo e6510000.i2c > unbind > > [ 30.505950] clk_unregister: unregistering prepared clock: clk_multiplier > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# ls -d e6510000.i2c > > ls: cannot access e6510000.i2c: No such file or directory > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# echo e6510000.i2c > bind > > [ 40.825298] cs2000-cp 2-004f: revision - C1 > > [ 40.829587] i2c-rcar e6510000.i2c: probed > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# ls -d e6510000.i2c > > e6510000.i2c > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# > > root@linaro-nano:/sys/bus/platform/drivers/i2c-rcar# aplay /home/board-lager/FSI/data/test.wav > > Thank you for your report. > This is open (and deep) issue (Oops after "unbind" -> "rebind") > We have similar issue on I2C / ALSA SoC / DMAEngine / V4L2 SoC etc... > and we should care about it, but it is still under discussion I think. > ALSA SoC had started to solve this issue, but it will take over 2 years FWIW the VIN patches for Gen3 which are posted to ML solves the unbind/bind problem for the rcar-vin driver. -- Regards, Niklas Söderlund
