The current implementation does not allow different devices to use a
common hwspinlock. Offer the possibility to use the same hwspinlock by
several users.
If a device registers to the framework with #hwlock-cells = 2, then
the second parameter of the 'hwlocks' DeviceTree property defines
whether an hwlock is requested for an exclusive or a shared usage.
If a device registers with #hwlock-cells = 1, then all the hwlocks are
for an exclusive usage.
Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Change-Id: Ieda4bc4127033fbe49461f9dc861bd954bab0e7b
67e4b4a4eb