On Wed, Apr 09, 2014 at 04:06:48PM +0530, Sourav Poddar wrote: > I2c core supports defualt probing functionality for devices not registered through > dt/board files. If there are any client driver registered, i2c core will try to > check if there is any device present corresponding to the address supplied by > the client driver. If the device is actually present and not registered, core > will register it, else the device default probe will fail and we get a omap i2c controller > specific timeout messages. > For example, Using multi_v7_config on omap5-uevm, CONFIG_SENSORS_LM90 and CONFIG_ICS932S401 > is the driver which is enabled and gets registered. I2c core tries to find a valid > corresponding device on each of the address supplied by registered driver, > but could not find anyone. Hence, keep dumping the controller timeout speciic message. This is exactly why I2C_CLASS_DEPRECATED was implemented. So, users which are using classes can migrate away. But this needs time. Given that I2C_CLASS_DEPRECATED is new in 3.15, I'd think setting classes to 0 (thus totally disabling them) should not be before 3.17. You don't need to resend, I'll do it for all drivers I added this new class to when I feel it is safe to do. Thanks, Wolfram
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