use the new irq_chip added to retu.c.

Signed-off-by: Felipe Balbi <ba...@ti.com>
---
 drivers/cbus/Makefile       |    2 +-
 drivers/cbus/retu-headset.c |   22 ++++++++++++----------
 2 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/cbus/Makefile b/drivers/cbus/Makefile
index 3375b82..841bed5 100644
--- a/drivers/cbus/Makefile
+++ b/drivers/cbus/Makefile
@@ -12,4 +12,4 @@ obj-$(CONFIG_CBUS_TAHVO_USER) += tahvo-user.o
 #obj-$(CONFIG_CBUS_RETU_POWERBUTTON) += retu-pwrbutton.o
 #obj-$(CONFIG_CBUS_RETU_RTC)   += retu-rtc.o
 #obj-$(CONFIG_CBUS_RETU_WDT)   += retu-wdt.o
-#obj-$(CONFIG_CBUS_RETU_HEADSET)       += retu-headset.o
+obj-$(CONFIG_CBUS_RETU_HEADSET)        += retu-headset.o
diff --git a/drivers/cbus/retu-headset.c b/drivers/cbus/retu-headset.c
index f5fb50c..2aa4d30 100644
--- a/drivers/cbus/retu-headset.c
+++ b/drivers/cbus/retu-headset.c
@@ -22,6 +22,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/input.h>
@@ -84,7 +86,6 @@ static void retu_headset_det_enable(struct retu_headset *hs)
        if (!hs->detection_enabled) {
                hs->detection_enabled = 1;
                retu_set_clear_reg_bits(RETU_REG_CC1, (1 << 10) | (1 << 8), 0);
-               retu_enable_irq(RETU_INT_HOOK);
        }
        mutex_unlock(&hs->mutex);
 }
@@ -96,7 +97,6 @@ static void retu_headset_det_disable(struct retu_headset *hs)
        mutex_lock(&hs->mutex);
        if (hs->detection_enabled) {
                hs->detection_enabled = 0;
-               retu_disable_irq(RETU_INT_HOOK);
                del_timer_sync(&hs->enable_timer);
                del_timer_sync(&hs->detect_timer);
                spin_lock_irqsave(&hs->lock, flags);
@@ -177,12 +177,11 @@ static DEVICE_ATTR(enable_det, S_IRUGO | S_IWUSR | 
S_IWGRP,
                   retu_headset_enable_det_show,
                   retu_headset_enable_det_store);
 
-static void retu_headset_hook_interrupt(unsigned long arg)
+static irqreturn_t retu_headset_hook_interrupt(int irq, void *_hs)
 {
-       struct retu_headset *hs = (struct retu_headset *) arg;
-       unsigned long flags;
+       struct retu_headset     *hs = _hs;
+       unsigned long           flags;
 
-       retu_ack_irq(RETU_INT_HOOK);
        spin_lock_irqsave(&hs->lock, flags);
        if (!hs->pressed) {
                /* Headset button was just pressed down. */
@@ -192,6 +191,8 @@ static void retu_headset_hook_interrupt(unsigned long arg)
        spin_unlock_irqrestore(&hs->lock, flags);
        retu_set_clear_reg_bits(RETU_REG_CC1, 0, (1 << 10) | (1 << 8));
        mod_timer(&hs->enable_timer, jiffies + msecs_to_jiffies(50));
+
+       return IRQ_HANDLED;
 }
 
 static void retu_headset_enable_timer(unsigned long arg)
@@ -257,13 +258,13 @@ static int __init retu_headset_probe(struct 
platform_device *pdev)
        setup_timer(&hs->detect_timer, retu_headset_detect_timer,
                    (unsigned long) hs);
 
-       r = retu_request_irq(RETU_INT_HOOK, retu_headset_hook_interrupt,
-                            (unsigned long) hs, "hookdet");
+       r = request_threaded_irq(RETU_INT_HOOK, NULL,
+                       retu_headset_hook_interrupt, 0, "hookdet", hs);
        if (r != 0) {
                dev_err(&pdev->dev, "hookdet IRQ not available\n");
                goto err6;
        }
-       retu_disable_irq(RETU_INT_HOOK);
+
        return 0;
 err6:
        device_remove_file(&pdev->dev, &dev_attr_enable_det);
@@ -289,9 +290,10 @@ static int retu_headset_remove(struct platform_device 
*pdev)
        device_remove_file(&pdev->dev, &dev_attr_enable_det);
        retu_headset_disable(hs);
        retu_headset_det_disable(hs);
-       retu_free_irq(RETU_INT_HOOK);
+       free_irq(RETU_INT_HOOK, hs);
        input_unregister_device(hs->idev);
        input_free_device(hs->idev);
+
        return 0;
 }
 
-- 
1.7.3.4.598.g85356

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