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remarkable-linux/drivers/pinctrl/sirf
Julia Cartwright 82e529c1c7 pinctrl: sirf: atlas7: make use of raw_spinlock variants
The sirf atlas7 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>
2017-03-16 16:39:15 +01:00
..
Makefile pinctrl: sirf: add sirf atlas7 pinctrl and gpio support 2015-05-19 16:01:30 +02:00
pinctrl-atlas6.c pinctrl: atlas6: Add I2S external clock input pingroup 2014-08-29 08:42:13 +02:00
pinctrl-atlas7.c pinctrl: sirf: atlas7: make use of raw_spinlock variants 2017-03-16 16:39:15 +01:00
pinctrl-prima2.c pinctrl: prima2: add I2S 2ch, 6ch, nodin, mclk groups 2014-09-04 19:07:19 +02:00
pinctrl-sirf.c pinctrl: sirf: make core support explicitly non-modular 2016-08-27 13:16:12 +02:00
pinctrl-sirf.h pinctrl: sirf: drop marco support 2015-01-14 14:21:54 +01:00