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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/arm/mach-w90x900
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/arm/mach-w90x900')
-rw-r--r--kernel/arch/arm/mach-w90x900/irq.c2
-rw-r--r--kernel/arch/arm/mach-w90x900/time.c51
2 files changed, 29 insertions, 24 deletions
diff --git a/kernel/arch/arm/mach-w90x900/irq.c b/kernel/arch/arm/mach-w90x900/irq.c
index d66d43ae8..491b317da 100644
--- a/kernel/arch/arm/mach-w90x900/irq.c
+++ b/kernel/arch/arm/mach-w90x900/irq.c
@@ -211,6 +211,6 @@ void __init nuc900_init_irq(void)
for (irqno = IRQ_WDT; irqno <= IRQ_ADC; irqno++) {
irq_set_chip_and_handler(irqno, &nuc900_irq_chip,
handle_level_irq);
- set_irq_flags(irqno, IRQF_VALID);
+ irq_clear_status_flags(irqno, IRQ_NOREQUEST);
}
}
diff --git a/kernel/arch/arm/mach-w90x900/time.c b/kernel/arch/arm/mach-w90x900/time.c
index 9230d3725..cd1966ec9 100644
--- a/kernel/arch/arm/mach-w90x900/time.c
+++ b/kernel/arch/arm/mach-w90x900/time.c
@@ -48,31 +48,32 @@
static unsigned int timer0_load;
-static void nuc900_clockevent_setmode(enum clock_event_mode mode,
- struct clock_event_device *clk)
+static int nuc900_clockevent_shutdown(struct clock_event_device *evt)
{
- unsigned int val;
+ unsigned int val = __raw_readl(REG_TCSR0) & ~(0x03 << 27);
- val = __raw_readl(REG_TCSR0);
- val &= ~(0x03 << 27);
+ __raw_writel(val, REG_TCSR0);
+ return 0;
+}
+
+static int nuc900_clockevent_set_oneshot(struct clock_event_device *evt)
+{
+ unsigned int val = __raw_readl(REG_TCSR0) & ~(0x03 << 27);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- __raw_writel(timer0_load, REG_TICR0);
- val |= (PERIOD | COUNTEN | INTEN | PRESCALE);
- break;
+ val |= (ONESHOT | COUNTEN | INTEN | PRESCALE);
- case CLOCK_EVT_MODE_ONESHOT:
- val |= (ONESHOT | COUNTEN | INTEN | PRESCALE);
- break;
+ __raw_writel(val, REG_TCSR0);
+ return 0;
+}
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+static int nuc900_clockevent_set_periodic(struct clock_event_device *evt)
+{
+ unsigned int val = __raw_readl(REG_TCSR0) & ~(0x03 << 27);
+ __raw_writel(timer0_load, REG_TICR0);
+ val |= (PERIOD | COUNTEN | INTEN | PRESCALE);
__raw_writel(val, REG_TCSR0);
+ return 0;
}
static int nuc900_clockevent_setnextevent(unsigned long evt,
@@ -90,11 +91,15 @@ static int nuc900_clockevent_setnextevent(unsigned long evt,
}
static struct clock_event_device nuc900_clockevent_device = {
- .name = "nuc900-timer0",
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_mode = nuc900_clockevent_setmode,
- .set_next_event = nuc900_clockevent_setnextevent,
- .rating = 300,
+ .name = "nuc900-timer0",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .set_state_shutdown = nuc900_clockevent_shutdown,
+ .set_state_periodic = nuc900_clockevent_set_periodic,
+ .set_state_oneshot = nuc900_clockevent_set_oneshot,
+ .tick_resume = nuc900_clockevent_shutdown,
+ .set_next_event = nuc900_clockevent_setnextevent,
+ .rating = 300,
};
/*IRQ handler for the timer*/