This fixes the overpolling of USB keyboard which
causes slowdown of entier barebox by using periodic
polling occuting once per some milliseconds.
Signed-off-by: Aleksey Kuleshov <rndfax@xxxxxxxxx>
---
drivers/input/usb_kbd.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/drivers/input/usb_kbd.c b/drivers/input/usb_kbd.c
index 6f7a081..bdaf305 100644
--- a/drivers/input/usb_kbd.c
+++ b/drivers/input/usb_kbd.c
@@ -48,7 +48,7 @@ struct usb_kbd_pdata;
struct usb_kbd_pdata {
uint8_t *new;
uint8_t old[USB_KBD_BOOT_REPORT_SIZE];
- struct poller_struct poller;
+ struct poller_async poller;
struct usb_device *usbdev;
int lock;
unsigned long intpipe;
@@ -92,10 +92,9 @@ static const unsigned char usb_kbd_keycode[256] = {
150,158,159,128,136,177,178,176,142,152,173,140
};
-static void usb_kbd_poll(struct poller_struct *poller)
+static void usb_kbd_poll(void *arg)
{
- struct usb_kbd_pdata *data = container_of(poller,
- struct usb_kbd_pdata, poller);
+ struct usb_kbd_pdata *data = arg;
struct usb_device *usbdev = data->usbdev;
int ret, i;
@@ -146,6 +145,7 @@ static void usb_kbd_poll(struct poller_struct *poller)
exit:
data->lock = 0;
+ poller_call_async(&data->poller, data->intinterval * MSECOND, usb_kbd_poll, data);
}
static int usb_kbd_probe(struct usb_device *usbdev,
@@ -201,16 +201,22 @@ static int usb_kbd_probe(struct usb_device *usbdev,
return ret;
}
- data->poller.func = usb_kbd_poll;
+ ret = poller_async_register(&data->poller);
+ if (ret) {
+ dev_err(&usbdev->dev, "can't setup poller\n");
+ return ret;
+ }
+
+ poller_call_async(&data->poller, data->intinterval * MSECOND, usb_kbd_poll, data);
- return poller_register(&data->poller);
+ return 0;
}
static void usb_kbd_disconnect(struct usb_device *usbdev)
{
struct usb_kbd_pdata *data = usbdev->drv_data;
- poller_unregister(&data->poller);
+ poller_async_unregister(&data->poller);
input_device_unregister(&data->input);
dma_free(data->new);
free(data);
--
2.6.2
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