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path: root/target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
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Diffstat (limited to 'target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch')
-rw-r--r--target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch78
1 files changed, 78 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch b/target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
new file mode 100644
index 0000000000..0a6ecc4134
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0052-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
@@ -0,0 +1,78 @@
+From b9afea3f5cf6c2da3b88f2902c4377e9c5b22a6d Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Fri, 3 May 2013 00:04:58 +0200
+Subject: [PATCH 52/79] 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(-)
+
+diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
+index 7532392..afc08e4 100644
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -39,12 +39,6 @@ static int mips_next_event(unsigned long delta,
+
+ #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;
+
+@@ -89,6 +83,32 @@ 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)
+ {
+@@ -208,13 +228,6 @@ int __cpuinit r4k_clockevent_init(void)
+
+ clockevents_register_device(cd);
+
+- if (cp0_timer_irq_installed)
+- return 0;
+-
+- cp0_timer_irq_installed = 1;
+-
+- setup_irq(irq, &c0_compare_irqaction);
+-
+ return 0;
+ }
+
+--
+1.7.10.4
+