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Commit 904adede authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Dmitry Torokhov
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Input: pxa27x_keypad - clear pending interrupts on keypad config 



Bootloader can leave interrupt bit pending, and it confuses driver.

Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Acked-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent b216e12d

drivers/input/keyboard/pxa27x_keypad.c

+3 −0
Original line number Diff line number Diff line
@@ -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;