From mboxrd@z Thu Jan 1 00:00:00 1970 From: anarsoul@gmail.com (Vasily Khoruzhick) Date: Sun, 28 Oct 2012 18:46:03 +0300 Subject: [PATCH RESEND] ARM: pxa27x_keypad: clear pending interrupts on keypad config Message-ID: <1351439163-9575-1-git-send-email-anarsoul@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Bootloader can leave interrupt bit pending, and it confuses driver. Signed-off-by: Vasily Khoruzhick --- Rebased against v3.7-rc2 drivers/input/keyboard/pxa27x_keypad.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c index 803ff6f..cad9d5d 100644 --- a/drivers/input/keyboard/pxa27x_keypad.c +++ b/drivers/input/keyboard/pxa27x_keypad.c @@ -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; -- 1.7.12.4