diff --git a/target/linux/omap24xx/patches-3.1/252-cbus-retu-tahvo-ack-fix.patch b/target/linux/omap24xx/patches-3.1/252-cbus-retu-tahvo-ack-fix.patch
index 34f9465969d16ab98320be575c8bfc52f84103c9..6793a3c600ba7b89823cb638c193e851fedcbe42 100644
--- a/target/linux/omap24xx/patches-3.1/252-cbus-retu-tahvo-ack-fix.patch
+++ b/target/linux/omap24xx/patches-3.1/252-cbus-retu-tahvo-ack-fix.patch
@@ -1,41 +1,84 @@
Index: linux-3.1.1/drivers/cbus/retu.c
===================================================================
---- linux-3.1.1.orig/drivers/cbus/retu.c 2011-11-17 18:47:59.453004678 +0100
-+++ linux-3.1.1/drivers/cbus/retu.c 2011-11-17 18:49:03.180787673 +0100
-@@ -54,8 +54,6 @@ struct retu {
+--- linux-3.1.1.orig/drivers/cbus/retu.c 2011-11-17 23:23:53.542699149 +0100
++++ linux-3.1.1/drivers/cbus/retu.c 2011-11-17 23:23:55.830689859 +0100
+@@ -53,9 +53,6 @@ struct retu {
+
int irq;
- int ack;
+- int ack;
- bool ack_pending;
-
int mask;
bool mask_pending;
-@@ -238,7 +236,6 @@ static void retu_irq_ack(struct irq_data
- int irq = data->irq;
+@@ -191,9 +188,10 @@ static irqreturn_t retu_irq_handler(int
+ mutex_lock(&retu->mutex);
+ idr = __retu_read_reg(retu, RETU_REG_IDR);
+ imr = __retu_read_reg(retu, RETU_REG_IMR);
++ idr &= ~imr;
++ __retu_write_reg(retu, RETU_REG_IDR, idr);
+ mutex_unlock(&retu->mutex);
+
+- idr &= ~imr;
+ if (!idr) {
+ dev_vdbg(retu->dev, "No IRQ, spurious?\n");
+ return IRQ_NONE;
+@@ -232,15 +230,6 @@ static void retu_irq_unmask(struct irq_d
- retu->ack |= (1 << (irq - retu->irq_base));
-- retu->ack_pending = true;
}
+-static void retu_irq_ack(struct irq_data *data)
+-{
+- struct retu *retu = irq_data_get_irq_chip_data(data);
+- int irq = data->irq;
+-
+- retu->ack |= (1 << (irq - retu->irq_base));
+- retu->ack_pending = true;
+-}
+-
static void retu_bus_lock(struct irq_data *data)
-@@ -257,9 +254,9 @@ static void retu_bus_sync_unlock(struct
+ {
+ struct retu *retu = irq_data_get_irq_chip_data(data);
+@@ -257,11 +246,6 @@ static void retu_bus_sync_unlock(struct
retu->mask_pending = false;
}
- if (retu->ack_pending) {
-+ if (retu->ack) {
- __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
+- __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
- retu->ack_pending = false;
-+ retu->ack = 0;
- }
-
+- }
+-
mutex_unlock(&retu->mutex);
+ }
+
+@@ -271,7 +255,6 @@ static struct irq_chip retu_irq_chip = {
+ .irq_bus_sync_unlock = retu_bus_sync_unlock,
+ .irq_mask = retu_irq_mask,
+ .irq_unmask = retu_irq_unmask,
+- .irq_ack = retu_irq_ack,
+ };
+
+ static inline void retu_irq_setup(int irq)
+@@ -291,8 +274,7 @@ static void retu_irq_init(struct retu *r
+
+ for (irq = base; irq < end; irq++) {
+ irq_set_chip_data(irq, retu);
+- irq_set_chip_and_handler(irq, &retu_irq_chip,
+- handle_simple_irq);
++ irq_set_chip(irq, &retu_irq_chip);
+ irq_set_nested_thread(irq, 1);
+ retu_irq_setup(irq);
+ }
Index: linux-3.1.1/drivers/cbus/tahvo.c
===================================================================
---- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 18:47:59.437004733 +0100
-+++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 18:51:03.708374259 +0100
-@@ -52,7 +52,6 @@ struct tahvo {
+--- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 23:23:54.358695836 +0100
++++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 23:23:55.830689859 +0100
+@@ -48,11 +48,9 @@ struct tahvo {
+ int irq_end;
+ int irq;
+
+- int ack;
int mask;
unsigned int mask_pending:1;
@@ -43,23 +86,61 @@ Index: linux-3.1.1/drivers/cbus/tahvo.c
unsigned int is_betty:1;
};
-@@ -177,9 +176,9 @@ static void tahvo_irq_bus_sync_unlock(st
+@@ -138,9 +136,12 @@ static irqreturn_t tahvo_irq_handler(int
+ u16 id;
+ u16 im;
+
++ mutex_lock(&tahvo->mutex);
+ id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
+ im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
+ id &= ~im;
++ __tahvo_write_reg(tahvo, TAHVO_REG_IDR, id);
++ mutex_unlock(&tahvo->mutex);
+
+ if (!id) {
+ dev_vdbg(tahvo->dev, "No IRQ, spurious ?\n");
+@@ -177,11 +178,6 @@ static void tahvo_irq_bus_sync_unlock(st
tahvo->mask_pending = false;
}
- if (tahvo->ack_pending) {
-+ if (tahvo->ack) {
- __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
+- __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
- tahvo->ack_pending = false;
-+ tahvo->ack = 0;
- }
-
+- }
+-
mutex_unlock(&tahvo->mutex);
-@@ -209,7 +208,6 @@ static void tahvo_irq_ack(struct irq_dat
- int irq = data->irq;
+ }
- tahvo->ack |= (1 << (irq - tahvo->irq_base));
-- tahvo->ack_pending = true;
+@@ -203,22 +199,12 @@ static void tahvo_irq_unmask(struct irq_
+ tahvo->mask_pending = true;
}
+-static void tahvo_irq_ack(struct irq_data *data)
+-{
+- struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
+- int irq = data->irq;
+-
+- tahvo->ack |= (1 << (irq - tahvo->irq_base));
+- tahvo->ack_pending = true;
+-}
+-
static struct irq_chip tahvo_irq_chip = {
+ .name = "tahvo",
+ .irq_bus_lock = tahvo_irq_bus_lock,
+ .irq_bus_sync_unlock = tahvo_irq_bus_sync_unlock,
+ .irq_mask = tahvo_irq_mask,
+ .irq_unmask = tahvo_irq_unmask,
+- .irq_ack = tahvo_irq_ack,
+ };
+
+ static inline void tahvo_irq_setup(int irq)
+@@ -238,8 +224,7 @@ static void tahvo_irq_init(struct tahvo
+
+ for (irq = base; irq < end; irq++) {
+ irq_set_chip_data(irq, tahvo);
+- irq_set_chip_and_handler(irq, &tahvo_irq_chip,
+- handle_simple_irq);
++ irq_set_chip(irq, &tahvo_irq_chip);
+ irq_set_nested_thread(irq, 1);
+ tahvo_irq_setup(irq);
+ }
diff --git a/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch b/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch
deleted file mode 100644
index c27a67c7c90c8bfd09ba853ba28ffc1fb0b15c8a..0000000000000000000000000000000000000000
--- a/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-Index: linux-3.1.1/drivers/cbus/tahvo.c
-===================================================================
---- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 18:51:03.708374259 +0100
-+++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 18:57:17.739067493 +0100
-@@ -137,8 +137,10 @@ static irqreturn_t tahvo_irq_handler(int
- u16 id;
- u16 im;
-
-+ mutex_lock(&tahvo->mutex);
- id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
- im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
-+ mutex_unlock(&tahvo->mutex);
- id &= ~im;
-
- if (!id) {
diff --git a/target/linux/omap24xx/patches-3.1/254-cbus-retu-tahvo-irq-mask-init-fix.patch b/target/linux/omap24xx/patches-3.1/254-cbus-retu-tahvo-irq-mask-init-fix.patch
index 740b275321d6c4be4da8bad90f052604a448ac02..a3802cb2cc3b3605bd2a11dcb76fce3dd4ddb49a 100644
--- a/target/linux/omap24xx/patches-3.1/254-cbus-retu-tahvo-irq-mask-init-fix.patch
+++ b/target/linux/omap24xx/patches-3.1/254-cbus-retu-tahvo-irq-mask-init-fix.patch
@@ -1,8 +1,8 @@
Index: linux-3.1.1/drivers/cbus/retu.c
===================================================================
---- linux-3.1.1.orig/drivers/cbus/retu.c 2011-11-17 21:19:01.758502241 +0100
-+++ linux-3.1.1/drivers/cbus/retu.c 2011-11-17 21:53:32.261883947 +0100
-@@ -466,7 +466,8 @@ static int __devinit retu_probe(struct p
+--- linux-3.1.1.orig/drivers/cbus/retu.c 2011-11-17 23:09:26.498214061 +0100
++++ linux-3.1.1/drivers/cbus/retu.c 2011-11-17 23:15:50.280659655 +0100
+@@ -451,7 +451,8 @@ static int __devinit retu_probe(struct p
(rev >> 4) & 0x07, rev & 0x0f);
/* Mask all RETU interrupts */
@@ -14,9 +14,9 @@ Index: linux-3.1.1/drivers/cbus/retu.c
IRQF_ONESHOT, "retu", retu);
Index: linux-3.1.1/drivers/cbus/tahvo.c
===================================================================
---- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 21:19:01.766502210 +0100
-+++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 21:53:52.213800321 +0100
-@@ -361,7 +361,8 @@ static int __devinit tahvo_probe(struct
+--- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 23:15:46.684674232 +0100
++++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 23:15:50.280659655 +0100
+@@ -346,7 +346,8 @@ static int __devinit tahvo_probe(struct
(rev >> 4) & 0x0f, rev & 0x0f);
/* Mask all TAHVO interrupts */