This series (on top of current char-misc-next) implements "external
mode" (ie, support for FSI debug devices) for the GPIO-based FSI master

We implement this control in the GPIO master driver, as it has the
mapping of raw GPIO pins to fsi control signals, and provides a
mechanism for the kernel to retain exclusive access to those GPIOs.



Jeremy Kerr (3):
  fsi: Add fsi_master_rescan()
  fsi/master-gpio: Add locking around gpio operations during break &
    link enable
  fsi/master-gpio: Add external mode

 .../ABI/testing/sysfs-driver-fsi-master-gpio       | 10 +++
 drivers/fsi/fsi-core.c                             |  9 ++-
 drivers/fsi/fsi-master-gpio.c                      | 85 +++++++++++++++++++++-
 drivers/fsi/fsi-master.h                           |  2 +
 4 files changed, 102 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-fsi-master-gpio


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