mfd: t7l66xb: Make use of raw_spinlock variants
authorJulia Cartwright <julia@ni.com>
Tue, 21 Mar 2017 22:43:05 +0000 (17:43 -0500)
committerLee Jones <lee.jones@linaro.org>
Thu, 27 Apr 2017 08:25:05 +0000 (09:25 +0100)
commit9fe8c2dfe165f18873042d25ef430e18c97b1dae
treec8ca5dbfbb12e82ce8f6a8f16d838aa070d00fa8
parent93ad4471912029f7519c23da56538a5d54552124
mfd: t7l66xb: Make use of raw_spinlock variants

The t7l66xb mfd 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: Lee Jones <lee.jones@linaro.org>
drivers/mfd/t7l66xb.c