From 229710fecdd805abb753c480778ea0de47cbb1e2 Mon Sep 17 00:00:00 2001 From: Julia Cartwright Date: Thu, 9 Mar 2017 10:22:04 -0600 Subject: pinctrl: amd: make use of raw_spinlock variants The amd 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 Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-amd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pinctrl/pinctrl-amd.h') diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h index c03f77822069..5b1cb965c767 100644 --- a/drivers/pinctrl/pinctrl-amd.h +++ b/drivers/pinctrl/pinctrl-amd.h @@ -87,7 +87,7 @@ struct amd_function { }; struct amd_gpio { - spinlock_t lock; + raw_spinlock_t lock; void __iomem *base; const struct amd_pingroup *groups; -- cgit v1.2.3