linux-kernel - [PATCH 1/1] gpio: max77620: get gpio value based on direction

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Date:	Mon, 27 Jun 2016 16:26:24 +0530
From:	Venkat Reddy Talla <vreddytalla@...dia.com>
To:	<linus.walleij@...aro.org>, <gnurou@...il.com>,
	<linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	<ldewangan@...dia.com>, <vreddytalla@...dia.com>
Subject: [PATCH 1/1] gpio: max77620: get gpio value based on direction

Gpio direction is determined by DIRx bit of GPIO
configuration register, return max77620 gpio value
based on direction in or out.

Signed-off-by: Venkat Reddy Talla <vreddytalla@...dia.com>
---
 drivers/gpio/gpio-max77620.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c
index 8658c32..b46b436 100644
--- a/drivers/gpio/gpio-max77620.c
+++ b/drivers/gpio/gpio-max77620.c
@@ -123,7 +123,10 @@ static int max77620_gpio_get(struct gpio_chip *gc, unsigned int offset)
 		return ret;
 	}
 
-	return !!(val & MAX77620_CNFG_GPIO_INPUT_VAL_MASK);
+	if  (val & MAX77620_CNFG_GPIO_DIR_MASK)
+		return !!(val & MAX77620_CNFG_GPIO_INPUT_VAL_MASK);
+	else
+		return !!(val & MAX77620_CNFG_GPIO_OUTPUT_VAL_MASK);
 }
 
 static int max77620_gpio_dir_output(struct gpio_chip *gc, unsigned int offset,
-- 
2.1.4