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From b27b8f1bd7d46f1affc9a2bc4142e248411c1afa Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 22 Oct 2012 17:42:48 +0200
Subject: [PATCH 100/113] MIPS: lantiq: external interrupt units not loaded
properly
The code references the wrong device node causing the number of EIU pins to
be wrong.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/lantiq/irq.c | 2 +-
drivers/pinctrl/pinctrl-xway.c | 15 +++++++++++++++
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index f36acd1..8e55622 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -343,7 +343,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu");
if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) {
/* find out how many external irq sources we have */
- const __be32 *count = of_get_property(node,
+ const __be32 *count = of_get_property(eiu_node,
"lantiq,count", NULL);
if (count)
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index b9bcaec..ea5e017 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -14,6 +14,7 @@
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/device.h>
@@ -618,6 +619,19 @@ static void xway_gpio_free(struct gpio_chip *chip, unsigned offset)
pinctrl_free_gpio(gpio);
}
+static int xway_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
+{
+ struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ struct resource res;
+ int i;
+
+ for (i = 0; i < info->num_exin; i++)
+ if (offset == info->exin[i])
+ if (of_irq_to_resource(chip->dev->of_node, i, &res))
+ return res.start;
+ return 0;
+}
+
static struct gpio_chip xway_chip = {
.label = "gpio-xway",
.direction_input = xway_gpio_dir_in,
@@ -626,6 +640,7 @@ static struct gpio_chip xway_chip = {
.set = xway_gpio_set,
.request = xway_gpio_req,
.free = xway_gpio_free,
+ .to_irq = xway_gpio_to_irq,
.base = -1,
};
--
1.7.10.4
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