Hi, On Sun, Sep 18, 2016 at 05:18:14PM -0700, Lawrence Yu wrote: > Hi. > > I may be doing something wrong, but I noticed on branch sunxi-next after > commit > > [2c89ce4f4b19561218c1acb97172bd7ba1a6ddc2] ARM: sun8i: Convert the A23 and > A33 to the CCU > > the I2C bus on an A33 tablet appears to stop working. > > After the commit i2cget responds as follows (with a long timeout) > > # i2cget 0 0x40 > i2cget: WARNING! This program can confuse your I2C bus > Continue? [y/N] y > [ 110.728256] i2c i2c-0: mv64xxx: I2C bus locked, block: 1, time_left: 0 > i2cget: read failed: Connection timed out > > Before the commit i2cget responds with (returns very quickly) > > # i2cget 0 0x40 > i2cget: WARNING! This program can confuse your I2C bus > Continue? [y/N] y > i2cget: read failed: No such device or address > > I confirmed with logic analyzer attached to I2C bus that prior to the > commit, there was activity on the I2C bus lines with i2cget, but after the > commit, there is no activity on the I2C bus lines. > > Can anyone else confirm?
Could you test with that patch http://code.bulix.org/jc1200-106165 ? Thanks, Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
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