pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler

According to VLI64 Intel Atom E3800 Specification Update (#329901)
concurrent read accesses may result in returning 0xffffffff and write
accesses may be dropped silently.
To workaround all accesses must be protected by locks.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

path: root/include/dt-bindings/clock/ath79-clk.h

/*
 * Copyright (C) 2014, 2016 Antony Pavlov <antonynpavlov@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#ifndef __DT_BINDINGS_ATH79_CLK_H
#define __DT_BINDINGS_ATH79_CLK_H

#define ATH79_CLK_CPU		0
#define ATH79_CLK_DDR		1
#define ATH79_CLK_AHB		2

#define ATH79_CLK_END		3

#endif /* __DT_BINDINGS_ATH79_CLK_H */