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authorJulia Cartwright <julia@ni.com>2017-03-09 19:21:55 +0300
committerLinus Walleij <linus.walleij@linaro.org>2017-03-16 23:52:08 +0300
commitf9c56536d50b4c55d42d7fb3396501906f7518fa (patch)
tree1120179a31fe31bbcce287fb85be88f5ad956fce /drivers/gpio/gpio-pl061.c
parenta080ce53eea56407779eb7ccf0ff00af0734bcdf (diff)
downloadlinux-f9c56536d50b4c55d42d7fb3396501906f7518fa.tar.xz
gpio: etraxfs: make use of raw_spinlock variants
The etraxfs gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pl061.c')
0 files changed, 0 insertions, 0 deletions