[v1,1/1] pinctrl: iproc: Add 'get_direction' support
diff mbox series

Message ID 1568178685-30738-1-git-send-email-rayagonda.kokatanur@broadcom.com
State New
Headers show
Series
  • [v1,1/1] pinctrl: iproc: Add 'get_direction' support
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Commit Message

Rayagonda Kokatanur Sept. 11, 2019, 5:11 a.m. UTC
Add 'get_direction' support to the iProc GPIO driver.

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
---
 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Linus Walleij Sept. 11, 2019, 9:44 a.m. UTC | #1
On Wed, Sep 11, 2019 at 6:16 AM Rayagonda Kokatanur
<rayagonda.kokatanur@broadcom.com> wrote:

> Add 'get_direction' support to the iProc GPIO driver.
>
> Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>

Patch applied, thanks for doing this!

Yours,
Linus Walleij

Patch
diff mbox series

diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
index b70058c..d782d70 100644
--- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
@@ -355,6 +355,15 @@  static int iproc_gpio_direction_output(struct gpio_chip *gc, unsigned gpio,
 	return 0;
 }
 
+static int iproc_gpio_get_direction(struct gpio_chip *gc, unsigned int gpio)
+{
+	struct iproc_gpio *chip = gpiochip_get_data(gc);
+	unsigned int offset = IPROC_GPIO_REG(gpio, IPROC_GPIO_OUT_EN_OFFSET);
+	unsigned int shift = IPROC_GPIO_SHIFT(gpio);
+
+	return !(readl(chip->base + offset) & BIT(shift));
+}
+
 static void iproc_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
 {
 	struct iproc_gpio *chip = gpiochip_get_data(gc);
@@ -784,6 +793,7 @@  static int iproc_gpio_probe(struct platform_device *pdev)
 	gc->free = iproc_gpio_free;
 	gc->direction_input = iproc_gpio_direction_input;
 	gc->direction_output = iproc_gpio_direction_output;
+	gc->get_direction = iproc_gpio_get_direction;
 	gc->set = iproc_gpio_set;
 	gc->get = iproc_gpio_get;