Input: cobalt_btns - convert to use polldev library

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

2 files changed, 23 insertions, 37 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 696c9609d714..1d0d3e765db6 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -43,6 +43,7 @@ config INPUT_M68K_BEEP
 config INPUT_COBALT_BTNS
         tristate "Cobalt button interface"
         depends on MIPS_COBALT
+        select INPUT_POLLDEV
         help
           Say Y here if you want to support MIPS Cobalt button interface.
 
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index b9b2d7764e73..064b07936019 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -18,19 +18,17 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include <linux/init.h>
-#include <linux/input.h>
+#include <linux/input-polldev.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/jiffies.h>
-#include <linux/timer.h>
 
 #define BUTTONS_POLL_INTERVAL   30      /* msec */
 #define BUTTONS_COUNT_THRESHOLD 3
 #define BUTTONS_STATUS_MASK     0xfe000000
 
 struct buttons_dev {
-        struct input_dev *input;
+        struct input_polled_dev *poll_dev;
         void __iomem *reg;
 };
 
@@ -50,16 +48,14 @@ static struct buttons_map buttons_map[] = {
         { 0x80000000, KEY_SELECT, },
 };
 
-static struct timer_list buttons_timer;
-
-static void handle_buttons(unsigned long data)
+static void handle_buttons(struct input_polled_dev *dev)
 {
         struct buttons_map *button = buttons_map;
-        struct buttons_dev *bdev;
+        struct buttons_dev *bdev = dev->private;
+        struct input_dev *input = dev->input;
         uint32_t status;
         int i;
 
-        bdev = (struct buttons_dev *)data;
         status = readl(bdev->reg);
         status = ~status & BUTTONS_STATUS_MASK;
 
@@ -68,55 +64,45 @@ static void handle_buttons(unsigned long data)
                         button->count++;
                 } else {
                         if (button->count >= BUTTONS_COUNT_THRESHOLD) {
-                                input_report_key(bdev->input, button->keycode, 0);
-                                input_sync(bdev->input);
+                                input_report_key(input, button->keycode, 0);
+                                input_sync(input);
                         }
                         button->count = 0;
                 }
 
                 if (button->count == BUTTONS_COUNT_THRESHOLD) {
-                        input_report_key(bdev->input, button->keycode, 1);
-                        input_sync(bdev->input);
+                        input_report_key(input, button->keycode, 1);
+                        input_sync(input);
                 }
 
                 button++;
         }
-
-        mod_timer(&buttons_timer, jiffies + msecs_to_jiffies(BUTTONS_POLL_INTERVAL));
-}
-
-static int cobalt_buttons_open(struct input_dev *dev)
-{
-        mod_timer(&buttons_timer, jiffies + msecs_to_jiffies(BUTTONS_POLL_INTERVAL));
-
-        return 0;
-}
-
-static void cobalt_buttons_close(struct input_dev *dev)
-{
-        del_timer_sync(&buttons_timer);
 }
 
 static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
 {
         struct buttons_dev *bdev;
+        struct input_polled_dev *poll_dev;
         struct input_dev *input;
         struct resource *res;
         int error, i;
 
         bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
-        input = input_allocate_device();
-        if (!bdev || !input) {
+        poll_dev = input_allocate_polled_device();
+        if (!bdev || !poll_dev) {
                 error = -ENOMEM;
                 goto err_free_mem;
         }
 
+        poll_dev->private = bdev;
+        poll_dev->poll = handle_buttons;
+        poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
+
+        input = poll_dev->input;
         input->name = "Cobalt buttons";
         input->phys = "cobalt/input0";
         input->id.bustype = BUS_HOST;
         input->cdev.dev = &pdev->dev;
-        input->open = cobalt_buttons_open;
-        input->close = cobalt_buttons_close;
 
         input->evbit[0] = BIT(EV_KEY);
         for (i = 0; i < ARRAY_SIZE(buttons_map); i++) {
@@ -130,13 +116,11 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
                 goto err_free_mem;
         }
 
-        bdev->input = input;
+        bdev->poll_dev = poll_dev;
         bdev->reg = ioremap(res->start, res->end - res->start + 1);
         dev_set_drvdata(&pdev->dev, bdev);
 
-        setup_timer(&buttons_timer, handle_buttons, (unsigned long)bdev);
-
-        error = input_register_device(input);
+        error = input_register_polled_device(poll_dev);
         if (error)
                 goto err_iounmap;
 
@@ -145,7 +129,7 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
  err_iounmap:
         iounmap(bdev->reg);
  err_free_mem:
-        input_free_device(input);
+        input_free_polled_device(poll_dev);
         kfree(bdev);
         dev_set_drvdata(&pdev->dev, NULL);
         return error;
@@ -156,7 +140,8 @@ static int __devexit cobalt_buttons_remove(struct platform_device *pdev)
         struct device *dev = &pdev->dev;
         struct buttons_dev *bdev = dev_get_drvdata(dev);
 
-        input_unregister_device(bdev->input);
+        input_unregister_polled_device(bdev->poll_dev);
+        input_free_polled_device(bdev->poll_dev);
         iounmap(bdev->reg);
         kfree(bdev);
         dev_set_drvdata(dev, NULL);