gpio: remove the open_drain API and ops

This patch removes the ops get_open_drain/set_open_drain
and the API dm_gpio_get_open_drain/dm_gpio_set_open_drain.

The ops only provided in one driver (mpc8xxx gpio) and the
associated API is never called in boards.

This patch prepare a more generic set/get_dir_flags ops,
including the open drain property.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

1 files changed, 0 insertions, 34 deletions

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 4064efeb8d..4d5348d8c8 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -253,8 +253,6 @@ struct dm_gpio_ops {
 				int value);
 	int (*get_value)(struct udevice *dev, unsigned offset);
 	int (*set_value)(struct udevice *dev, unsigned offset, int value);
-	int (*get_open_drain)(struct udevice *dev, unsigned offset);
-	int (*set_open_drain)(struct udevice *dev, unsigned offset, int value);
 	/**
 	 * get_function() Get the GPIO function
 	 *
@@ -586,38 +584,6 @@ int dm_gpio_get_value(const struct gpio_desc *desc);
 int dm_gpio_set_value(const struct gpio_desc *desc, int value);
 
 /**
- * dm_gpio_get_open_drain() - Check if open-drain-mode of a GPIO is active
- *
- * This checks if open-drain-mode for a GPIO is enabled or not. This method is
- * optional.
- *
- * @desc:	GPIO description containing device, offset and flags,
- *		previously returned by gpio_request_by_name()
- * @return Value of open drain mode for GPIO (0 for inactive, 1 for active) or
- *	   -ve on error
- */
-int dm_gpio_get_open_drain(struct gpio_desc *desc);
-
-/**
- * dm_gpio_set_open_drain() - Switch open-drain-mode of a GPIO on or off
- *
- * This enables or disables open-drain mode for a GPIO. This method is
- * optional; if the driver does not support it, nothing happens when the method
- * is called.
- *
- * In open-drain mode, instead of actively driving the output (Push-pull
- * output), the GPIO's pin is connected to the collector (for a NPN transistor)
- * or the drain (for a MOSFET) of a transistor, respectively. The pin then
- * either forms an open circuit or a connection to ground, depending on the
- * state of the transistor.
- *
- * @desc:	GPIO description containing device, offset and flags,
- *		previously returned by gpio_request_by_name()
- * @return 0 if OK, -ve on error
- */
-int dm_gpio_set_open_drain(struct gpio_desc *desc, int value);
-
-/**
  * dm_gpio_set_dir() - Set the direction for a GPIO
  *
  * This sets up the direction according tot the provided flags. It will do