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-rw-r--r--debian/patches-rt/0266-arm-imx6-cpuidle-Use-raw_spinlock_t.patch48
1 files changed, 48 insertions, 0 deletions
diff --git a/debian/patches-rt/0266-arm-imx6-cpuidle-Use-raw_spinlock_t.patch b/debian/patches-rt/0266-arm-imx6-cpuidle-Use-raw_spinlock_t.patch
new file mode 100644
index 000000000..f4ab668e2
--- /dev/null
+++ b/debian/patches-rt/0266-arm-imx6-cpuidle-Use-raw_spinlock_t.patch
@@ -0,0 +1,48 @@
+From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Date: Tue, 14 May 2019 17:07:44 +0200
+Subject: [PATCH 266/342] arm: imx6: cpuidle: Use raw_spinlock_t
+Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=18215a774fb6f25e6044f44d0bb7285b03a1e151
+
+[ Upstream commit 40d0332ec8312e9c090f0a5414d9c90e12b13611 ]
+
+The idle call back is invoked with disabled interrupts and requires
+raw_spinlock_t locks to work.
+
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
+---
+ arch/arm/mach-imx/cpuidle-imx6q.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
+index 326e870d7123..d9ac80aa1eb0 100644
+--- a/arch/arm/mach-imx/cpuidle-imx6q.c
++++ b/arch/arm/mach-imx/cpuidle-imx6q.c
+@@ -17,22 +17,22 @@
+ #include "hardware.h"
+
+ static int num_idle_cpus = 0;
+-static DEFINE_SPINLOCK(cpuidle_lock);
++static DEFINE_RAW_SPINLOCK(cpuidle_lock);
+
+ static int imx6q_enter_wait(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+ {
+- spin_lock(&cpuidle_lock);
++ raw_spin_lock(&cpuidle_lock);
+ if (++num_idle_cpus == num_online_cpus())
+ imx6_set_lpm(WAIT_UNCLOCKED);
+- spin_unlock(&cpuidle_lock);
++ raw_spin_unlock(&cpuidle_lock);
+
+ cpu_do_idle();
+
+- spin_lock(&cpuidle_lock);
++ raw_spin_lock(&cpuidle_lock);
+ if (num_idle_cpus-- == num_online_cpus())
+ imx6_set_lpm(WAIT_CLOCKED);
+- spin_unlock(&cpuidle_lock);
++ raw_spin_unlock(&cpuidle_lock);
+
+ return index;
+ }