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authorFelix Fietkau <nbd@openwrt.org>2015-01-15 12:19:20 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-01-15 12:19:20 +0000
commitf1c5232f4d5c06b341341304de02596ca3d83c62 (patch)
tree81f5ba590e777ff4b2a45cfe8330570feef84a81 /target/linux/ar71xx
parent4f2fe5d7fabedafe8030e39604751f56171d85f4 (diff)
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ar71xx: fix disable_irq() on chained irq handlers
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 43974
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/patches-3.14/736-MIPS-ath79-fix-chained-irq-disable.patch93
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.14/736-MIPS-ath79-fix-chained-irq-disable.patch b/target/linux/ar71xx/patches-3.14/736-MIPS-ath79-fix-chained-irq-disable.patch
new file mode 100644
index 0000000000..8cb38d3971
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.14/736-MIPS-ath79-fix-chained-irq-disable.patch
@@ -0,0 +1,93 @@
+--- a/arch/mips/ath79/irq.c
++++ b/arch/mips/ath79/irq.c
+@@ -26,6 +26,8 @@
+
+ static void (*ath79_ip2_handler)(void);
+ static void (*ath79_ip3_handler)(void);
++static struct irq_chip ip2_chip;
++static struct irq_chip ip3_chip;
+
+ static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
+ {
+@@ -149,8 +151,7 @@ static void ar934x_ip2_irq_init(void)
+
+ for (i = ATH79_IP2_IRQ_BASE;
+ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++)
+- irq_set_chip_and_handler(i, &dummy_irq_chip,
+- handle_level_irq);
++ irq_set_chip_and_handler(i, &ip2_chip, handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch);
+ }
+@@ -224,15 +225,13 @@ static void qca955x_irq_init(void)
+
+ for (i = ATH79_IP2_IRQ_BASE;
+ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++)
+- irq_set_chip_and_handler(i, &dummy_irq_chip,
+- handle_level_irq);
++ irq_set_chip_and_handler(i, &ip2_chip, handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ(2), qca955x_ip2_irq_dispatch);
+
+ for (i = ATH79_IP3_IRQ_BASE;
+ i < ATH79_IP3_IRQ_BASE + ATH79_IP3_IRQ_COUNT; i++)
+- irq_set_chip_and_handler(i, &dummy_irq_chip,
+- handle_level_irq);
++ irq_set_chip_and_handler(i, &ip3_chip, handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ(3), qca955x_ip3_irq_dispatch);
+ }
+@@ -313,15 +312,13 @@ static void qca956x_irq_init(void)
+
+ for (i = ATH79_IP2_IRQ_BASE;
+ i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++)
+- irq_set_chip_and_handler(i, &dummy_irq_chip,
+- handle_level_irq);
++ irq_set_chip_and_handler(i, &ip2_chip, handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ(2), qca956x_ip2_irq_dispatch);
+
+ for (i = ATH79_IP3_IRQ_BASE;
+ i < ATH79_IP3_IRQ_BASE + ATH79_IP3_IRQ_COUNT; i++)
+- irq_set_chip_and_handler(i, &dummy_irq_chip,
+- handle_level_irq);
++ irq_set_chip_and_handler(i, &ip3_chip, handle_level_irq);
+
+ irq_set_chained_handler(ATH79_CPU_IRQ(3), qca956x_ip3_irq_dispatch);
+
+@@ -430,8 +427,35 @@ static void ar934x_ip3_handler(void)
+ do_IRQ(ATH79_CPU_IRQ(3));
+ }
+
++static void ath79_ip2_disable(struct irq_data *data)
++{
++ disable_irq(ATH79_CPU_IRQ(2));
++}
++
++static void ath79_ip2_enable(struct irq_data *data)
++{
++ enable_irq(ATH79_CPU_IRQ(2));
++}
++
++static void ath79_ip3_disable(struct irq_data *data)
++{
++ disable_irq(ATH79_CPU_IRQ(3));
++}
++
++static void ath79_ip3_enable(struct irq_data *data)
++{
++ enable_irq(ATH79_CPU_IRQ(3));
++}
++
+ void __init arch_init_irq(void)
+ {
++ ip2_chip = dummy_irq_chip;
++ ip3_chip = dummy_irq_chip;
++ ip2_chip.irq_disable = ath79_ip2_disable;
++ ip2_chip.irq_enable = ath79_ip2_enable;
++ ip3_chip.irq_disable = ath79_ip3_disable;
++ ip3_chip.irq_enable = ath79_ip3_enable;
++
+ if (soc_is_ar71xx()) {
+ ath79_ip2_handler = ar71xx_ip2_handler;
+ ath79_ip3_handler = ar71xx_ip3_handler;