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From ce3d4a4111a5f7e6b4e74bceae5faa6ce388e8ec Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 14 Jul 2013 23:08:11 +0200
Subject: [PATCH 05/53] MIPS: use set_mode() to enable/disable the cevt-r4k
irq
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/ralink/Kconfig | 5 +++++
1 file changed, 5 insertions(+)
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -1,11 +1,16 @@
if RALINK
+config CEVT_SYSTICK_QUIRK
+ bool
+ default n
+
config CLKEVT_RT3352
bool
depends on SOC_RT305X || SOC_MT7620
default y
select CLKSRC_OF
select CLKSRC_MMIO
+ select CEVT_SYSTICK_QUIRK
config RALINK_ILL_ACC
bool
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -15,6 +15,26 @@
#include <asm/time.h>
#include <asm/cevt-r4k.h>
+static int mips_state_oneshot(struct clock_event_device *evt)
+{
+ if (!cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 1;
+ setup_irq(evt->irq, &c0_compare_irqaction);
+ }
+
+ return 0;
+}
+
+static int mips_state_shutdown(struct clock_event_device *evt)
+{
+ if (cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 0;
+ remove_irq(evt->irq, &c0_compare_irqaction);
+ }
+
+ return 0;
+}
+
static int mips_next_event(unsigned long delta,
struct clock_event_device *evt)
{
@@ -281,17 +301,21 @@ int r4k_clockevent_init(void)
cd->rating = 300;
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
+ cd->set_state_shutdown = mips_state_shutdown;
+ cd->set_state_oneshot = mips_state_oneshot;
cd->set_next_event = mips_next_event;
cd->event_handler = mips_event_handler;
clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff);
+#ifndef CONFIG_CEVT_SYSTICK_QUIRK
if (cp0_timer_irq_installed)
return 0;
cp0_timer_irq_installed = 1;
setup_irq(irq, &c0_compare_irqaction);
+#endif
return 0;
}
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