diff options
| author | Peter Rosin <peda@axentia.se> | 2018-06-20 07:18:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-26 08:36:39 +0200 |
| commit | 57da414000905913c77a523013d28f32260c6b6c (patch) | |
| tree | e7bc2945e182ea379771ee54fbadbfc33e57b411 /drivers/fpga/fpga-mgr.c | |
| parent | 6dc47c5894c9f26014adc17f0b7ba998d3fc6499 (diff) | |
mfd: 88pm860x-i2c: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
[ Upstream commit 8c8f74f327a76604a499fad8c54c15e1c0ee8051 ]
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: Lee Jones <lee.jones@linaro.org>
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/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions