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From a1f29e15505226c6bc3a714daf91edccfc3a9e13 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 14 Jul 2013 23:08:11 +0200
Subject: [PATCH 01/33] MIPS: use set_mode() to enable/disable the cevt-r4k
irq
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/kernel/cevt-r4k.c | 39 ++++++++++++++++++++++++++-------------
1 file changed, 26 insertions(+), 13 deletions(-)
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -38,12 +38,6 @@ static int mips_next_event(unsigned long
#endif /* CONFIG_MIPS_MT_SMTC */
-void mips_set_clock_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- /* Nothing to do ... */
-}
-
DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
int cp0_timer_irq_installed;
@@ -90,6 +84,32 @@ struct irqaction c0_compare_irqaction =
.name = "timer",
};
+void mips_set_clock_mode(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ switch (mode) {
+ case CLOCK_EVT_MODE_ONESHOT:
+ if (cp0_timer_irq_installed)
+ break;
+
+ cp0_timer_irq_installed = 1;
+
+ setup_irq(evt->irq, &c0_compare_irqaction);
+ break;
+
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ if (!cp0_timer_irq_installed)
+ break;
+
+ cp0_timer_irq_installed = 0;
+ free_irq(evt->irq, &c0_compare_irqaction);
+ break;
+
+ default:
+ pr_err("Unhandeled mips clock_mode\n");
+ break;
+ }
+}
void mips_event_handler(struct clock_event_device *dev)
{
@@ -215,13 +235,6 @@ int __cpuinit r4k_clockevent_init(void)
#endif
clockevents_register_device(cd);
- if (cp0_timer_irq_installed)
- return 0;
-
- cp0_timer_irq_installed = 1;
-
- setup_irq(irq, &c0_compare_irqaction);
-
return 0;
}
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