brcm2708: remove linux 4.4 support

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.4 / 0005-irq-bcm2836-Prevent-spurious-interrupts-and-trap-the.patch

diff --git a/target/linux/brcm2708/patches-4.4/0005-irq-bcm2836-Prevent-spurious-interrupts-and-trap-the.patch b/target/linux/brcm2708/patches-4.4/0005-irq-bcm2836-Prevent-spurious-interrupts-and-trap-the.patch
deleted file mode 100644 (file)
index 5031f75..0000000
--- a/target/linux/brcm2708/patches-4.4/0005-irq-bcm2836-Prevent-spurious-interrupts-and-trap-the.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-From c384d8900be3c3a0aba65f9538006280545264ba Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Fri, 4 Dec 2015 17:41:50 +0000
-Subject: [PATCH] irq-bcm2836: Prevent spurious interrupts, and trap them early
-
-The old arch-specific IRQ macros included a dsb to ensure the
-write to clear the mailbox interrupt completed before returning
-from the interrupt. The BCM2836 irqchip driver needs the same
-precaution to avoid spurious interrupts.
-
-Spurious interrupts are still possible for other reasons,
-though, so trap them early.
----
- drivers/irqchip/irq-bcm2836.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
---- a/drivers/irqchip/irq-bcm2836.c
-+++ b/drivers/irqchip/irq-bcm2836.c
-@@ -170,9 +170,10 @@ __exception_irq_entry bcm2836_arm_irqchi
-               u32 ipi = ffs(mbox_val) - 1;
- 
-               writel(1 << ipi, mailbox0);
-+              dsb();
-               handle_IPI(ipi, regs);
- #endif
--      } else {
-+      } else if (stat) {
-               u32 hwirq = ffs(stat) - 1;
- 
-               handle_IRQ(irq_linear_revmap(intc.domain, hwirq), regs);