mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-04 18:53:05 +00:00
52e405eaa9
The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
|
|
* arch/arm/mach-netx/time.c
|
|
*
|
|
* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* 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.
|
|
*
|
|
* 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/init.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/io.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/arch/netx-regs.h>
|
|
|
|
/*
|
|
* Returns number of us since last clock interrupt. Note that interrupts
|
|
* will have been disabled by do_gettimeoffset()
|
|
*/
|
|
static unsigned long netx_gettimeoffset(void)
|
|
{
|
|
return readl(NETX_GPIO_COUNTER_CURRENT(0)) / 100;
|
|
}
|
|
|
|
/*
|
|
* IRQ handler for the timer
|
|
*/
|
|
static irqreturn_t
|
|
netx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|
{
|
|
write_seqlock(&xtime_lock);
|
|
|
|
timer_tick(regs);
|
|
write_sequnlock(&xtime_lock);
|
|
|
|
/* acknowledge interrupt */
|
|
writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
static struct irqaction netx_timer_irq = {
|
|
.name = "NetX Timer Tick",
|
|
.flags = IRQF_DISABLED | IRQF_TIMER,
|
|
.handler = netx_timer_interrupt,
|
|
};
|
|
|
|
/*
|
|
* Set up timer interrupt
|
|
*/
|
|
static void __init netx_timer_init(void)
|
|
{
|
|
/* disable timer initially */
|
|
writel(0, NETX_GPIO_COUNTER_CTRL(0));
|
|
|
|
/* Reset the timer value to zero */
|
|
writel(0, NETX_GPIO_COUNTER_CURRENT(0));
|
|
|
|
writel(LATCH, NETX_GPIO_COUNTER_MAX(0));
|
|
|
|
/* acknowledge interrupt */
|
|
writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
|
|
|
|
/* Enable the interrupt in the specific timer register and start timer */
|
|
writel(COUNTER_BIT(0), NETX_GPIO_IRQ_ENABLE);
|
|
writel(NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN,
|
|
NETX_GPIO_COUNTER_CTRL(0));
|
|
|
|
setup_irq(NETX_IRQ_TIMER0, &netx_timer_irq);
|
|
}
|
|
|
|
struct sys_timer netx_timer = {
|
|
.init = netx_timer_init,
|
|
.offset = netx_gettimeoffset,
|
|
};
|