MXC: Lets handle IRQ by priority, defined with exported API function

[deliverable/linux.git] / arch / arm / plat-mxc / Kconfig

diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index e14eaad11dd5aec3c330a0ac43d1e9d24b91bb41..b2a7e3fad117f44c97160c191ab8e34eff66dc0a 100644 (file)
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -23,4 +23,15 @@ source "arch/arm/mach-mx3/Kconfig"
 
 endmenu
 
+config MXC_IRQ_PRIOR
+       bool "Use IRQ priority"
+       depends on ARCH_MXC
+       help
+         Select this if you want to use prioritized IRQ handling.
+         This feature prevents higher priority ISR to be interrupted
+         by lower priority IRQ even IRQF_DISABLED flag is not set.
+         This may be useful in embedded applications, where are strong
+         requirements for timing.
+         Say N here, unless you have a specialized requirement.
+
 endif