On Thu, Jun 09, 2016 at 09:53:55AM +0100, Chris Wilson wrote: > Some drivers require use of their i2c adapter long before they can add > the adapter to userspace (i.e. before they establish and expose their > objects in the sysfs kobject tree). Currently i2c_add_adapter() > registers the adapter with userspace, which causes a conflict in the > ordering of the driver's initialisation. Exporting i2c_init_adapter() > allows for the i2c adapter to be used early in the initialisation in > order to detect whether the device the adapter is attached to is even > present. The drivers still need to call i2c_add_adapter() (or > i2c_add_number_adapter()) as per normal to complete their registration. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx> > Cc: linux-i2c@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Do you have a patch for some i2c driver making use of this change?
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