Re: [PATCH 02/11] tpm/tpm_i2c_infineon: switch to i2c_lock_segment

[Jarkko Sakkinen]

On Fri, Jun 15, 2018 at 12:14:57PM +0200, Peter Rosin wrote:
> 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_segment. If the device does not sit behind a mux-locked mux,
> the two locking variants are equivalent.
> 
> Signed-off-by: Peter Rosin <peda@xxxxxxxxxx>

Can you quickly explain (or give a reference) the difference with these
functions? Not an expert in this area. Thanks.

/Jarkko