Input: pxa27x_keypad - clear pending interrupts on keypad config
Bootloader can leave interrupt bit pending, and it confuses driver. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
parent
b216e12d06
commit
904adede08
|
@ -368,6 +368,9 @@ static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
|
|||
unsigned int mask = 0, direct_key_num = 0;
|
||||
unsigned long kpc = 0;
|
||||
|
||||
/* clear pending interrupt bit */
|
||||
keypad_readl(KPC);
|
||||
|
||||
/* enable matrix keys with automatic scan */
|
||||
if (pdata->matrix_key_rows && pdata->matrix_key_cols) {
|
||||
kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL;
|
||||
|
|
Loading…
Reference in a new issue