mvebu: backport mainline patches from kernel 3.13

[openwrt.git] / target / linux / mvebu / patches-3.10 / 0182-of-irq-Pass-trigger-type-in-IRQ-resource-flags.patch

diff --git a/target/linux/mvebu/patches-3.10/0182-of-irq-Pass-trigger-type-in-IRQ-resource-flags.patch b/target/linux/mvebu/patches-3.10/0182-of-irq-Pass-trigger-type-in-IRQ-resource-flags.patch
new file mode 100644 (file)
index 0000000..5363b2e
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0182-of-irq-Pass-trigger-type-in-IRQ-resource-flags.patch
@@ -0,0 +1,34 @@
+From 4bd60065fb935a5d390c9a442be3a18d2ea18eee Mon Sep 17 00:00:00 2001
+From: Tomasz Figa <tomasz.figa@gmail.com>
+Date: Thu, 19 Dec 2013 09:30:53 -0300
+Subject: [PATCH 182/203] of/irq: Pass trigger type in IRQ resource flags
+
+Some drivers might rely on availability of trigger flags in IRQ
+resource, for example to configure the hardware for particular interrupt
+type. However current code creating IRQ resources from data in device
+tree does not configure trigger flags in resulting resources.
+
+This patch tries to solve the problem, based on the fact that
+irq_of_parse_and_map() configures the trigger based on DT interrupt
+specifier and IRQD_TRIGGER_* flags are consistent with IORESOURCE_IRQ_*,
+and we can get correct trigger flags by calling irqd_get_trigger_type()
+after mapping the interrupt.
+
+Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
+[grant.likely: Merged the two assignments to r->flags]
+Signed-off-by: Grant Likely <grant.likely@linaro.org>
+---
+ drivers/of/irq.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/of/irq.c
++++ b/drivers/of/irq.c
+@@ -360,7 +360,7 @@ int of_irq_to_resource(struct device_nod
+                                             &name);
+ 
+               r->start = r->end = irq;
+-              r->flags = IORESOURCE_IRQ;
++              r->flags = IORESOURCE_IRQ | irqd_get_trigger_type(irq_get_irq_data(irq));
+               r->name = name ? name : of_node_full_name(dev);
+       }
+