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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> |
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.. | ||
Kconfig | ||
Makefile | ||
pinctrl-bcm281xx.c | ||
pinctrl-bcm2835.c | ||
pinctrl-cygnus-mux.c | ||
pinctrl-iproc-gpio.c | ||
pinctrl-ns2-mux.c | ||
pinctrl-nsp-gpio.c | ||
pinctrl-nsp-mux.c |