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/sound/pci/ctxfi/ctpcm.h

/**
 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
 *
 * This source file is released under GPL v2 license (no other versions).
 * See the COPYING file included in the main directory of this source
 * distribution for the license terms and conditions.
 *
 * @File	ctpcm.h
 *
 * @Brief
 * This file contains the definition of the pcm device functions.
 *
 * @Author	Liu Chun
 * @Date 	Mar 28 2008
 *
 */

#ifndef CTPCM_H
#define CTPCM_H

#include "ctatc.h"

int ct_alsa_pcm_create(struct ct_atc *atc,
		       enum CTALSADEVS device,
		       const char *device_name);

#endif /* CTPCM_H */