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| author | Peter Rosin <peda@axentia.se> | 2018-06-20 08:17:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-26 09:38:12 +0300 |
| commit | bb9dcbf97a9be5a144f65c36e3fdd460307e52f4 (patch) | |
| tree | a9115d44cae2e1489b28e89d484e024d0d5e0167 /drivers/gpu/drm/udl | |
| parent | 80784cba90f3e976ac44a18d9dce45d6c706a624 (diff) | |
| download | linux-bb9dcbf97a9be5a144f65c36e3fdd460307e52f4.tar.xz | |
input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
[ Upstream commit 193c2a07cfaacb9249ab0e3d34bce32490879355 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/udl')
0 files changed, 0 insertions, 0 deletions