From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathias Nyman Subject: [PATCH] gpio-lynxpoint: force gpio_get() to return "1" and "0" only Date: Thu, 27 Mar 2014 15:02:08 +0200 Message-ID: <1395925328-6056-1-git-send-email-mathias.nyman@linux.intel.com> Return-path: Received: from mga11.intel.com ([192.55.52.93]:15414 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752124AbaC0MwB (ORCPT ); Thu, 27 Mar 2014 08:52:01 -0400 Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Linus Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Mathias Nyman Don't return the IN_LVL_BIT directly, a high gpio line returned value "1073741824" intestead of "1" because IN_LVL_BIT is BIT(30) Tested-by: Jerome Blin Signed-off-by: Mathias Nyman --- drivers/gpio/gpio-lynxpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c index 66b1853..803ea3c 100644 --- a/drivers/gpio/gpio-lynxpoint.c +++ b/drivers/gpio/gpio-lynxpoint.c @@ -188,7 +188,7 @@ static int lp_irq_type(struct irq_data *d, unsigned type) static int lp_gpio_get(struct gpio_chip *chip, unsigned offset) { unsigned long reg = lp_gpio_reg(chip, offset, LP_CONFIG1); - return inl(reg) & IN_LVL_BIT; + return !!(inl(reg) & IN_LVL_BIT); } static void lp_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- 1.8.3.2