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| author | Jeremy Kerr <jk@ozlabs.org> | 2018-05-24 08:14:24 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2018-05-25 08:41:42 +0300 |
| commit | b5e73c18ecdc88378f9c6461c4832fcaf7fc6571 (patch) | |
| tree | 167a685a355ee21e531dc9abf4cb93c9f0103006 /include/linux/fpga/fpga-mgr.h | |
| parent | 3fe360b9ae4a6caea64992eefc0d37e1c8e0ba94 (diff) | |
| download | linux-b5e73c18ecdc88378f9c6461c4832fcaf7fc6571.tar.xz | |
fsi/master-gpio: Replace bit_bit lock with IRQ disable/enable
We currently use a spinlock (bit_lock) around operations that clock bits
out of the FSI bus, and a mutex to protect against simultaneous access
to the master.
This means that bit_lock isn't needed for mutual exlusion, only to
prevent timing issues when clocking bits out.
To reflect this, this change converts bit_lock to just the
local_irq_save/restore operation.
OpenBMC-Staging-Count: 1
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions