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(parent: f06c97d) | patch
input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
authorPeter Rosin <peda@axentia.se>
Wed, 20 Jun 2018 05:17:56 +0000 (07:17 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Thu, 12 Jul 2018 22:08:14 +0000 (00:08 +0200)
commit193c2a07cfaacb9249ab0e3d34bce32490879355
treec4ecae1dfb367d863a3d0bc8d55f1b23edee4a25tree | snapshot
parentf06c97dd50870c3ccdea0726617a729bb83f5d30commit | diff
input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)

Locking the root adapter for __i2c_transfer will deadlock if the
device sits behind a mux-locked I2C mux. Switch to the finer-grained
i2c_lock_bus with the I2C_LOCK_SEGMENT flag. If the device does not
sit behind a mux-locked mux, the two locking variants are equivalent.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/input/touchscreen/rohm_bu21023.c diff | blob | history
Domain: System / Kernel;