mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 09:56:00 +00:00
620abe2877
Fix sparse warning in arch/arm/mach-s3c2410/gpio.c due to missing include of <mach/gpio-fns.h>. Fixes the following warning: warning: symbol 's3c2410_gpio_irqfilter' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben-linux@fluff.org>
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* linux/arch/arm/mach-s3c2410/gpio.c
|
|
*
|
|
* Copyright (c) 2004-2006 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* S3C2410 GPIO support
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/gpio-fns.h>
|
|
#include <asm/irq.h>
|
|
|
|
#include <mach/regs-gpio.h>
|
|
|
|
int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
|
|
unsigned int config)
|
|
{
|
|
void __iomem *reg = S3C24XX_EINFLT0;
|
|
unsigned long flags;
|
|
unsigned long val;
|
|
|
|
if (pin < S3C2410_GPG(8) || pin > S3C2410_GPG(15))
|
|
return -EINVAL;
|
|
|
|
config &= 0xff;
|
|
|
|
pin -= S3C2410_GPG(8);
|
|
reg += pin & ~3;
|
|
|
|
local_irq_save(flags);
|
|
|
|
/* update filter width and clock source */
|
|
|
|
val = __raw_readl(reg);
|
|
val &= ~(0xff << ((pin & 3) * 8));
|
|
val |= config << ((pin & 3) * 8);
|
|
__raw_writel(val, reg);
|
|
|
|
/* update filter enable */
|
|
|
|
val = __raw_readl(S3C24XX_EXTINT2);
|
|
val &= ~(1 << ((pin * 4) + 3));
|
|
val |= on << ((pin * 4) + 3);
|
|
__raw_writel(val, S3C24XX_EXTINT2);
|
|
|
|
local_irq_restore(flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(s3c2410_gpio_irqfilter);
|