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authorJulia Cartwright <julia@ni.com>2017-03-09 10:22:03 -0600
committerLinus Walleij <linus.walleij@linaro.org>2017-03-16 16:39:14 +0100
commitcb96a66243a84f16590ba0a7658d4257267e50df (patch)
treed514d365dfc15387c0d2380989f24b673ad0de1e /drivers/irqchip
parenta9ee6bd44cc808ab1ec5d9a54899addd777e8342 (diff)
pinctrl: bcm: make use of raw_spinlock variants
The bcm pinctrl drivers currently implement 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/irqchip')
0 files changed, 0 insertions, 0 deletions