[U-Boot] [PATCH 11/23] dm: gpio: sandbox: Implement the get_function() method

[Simon Glass]

Implement this method so that the 'gpio' command can do its job correctly.
For sandbox we only support input and output states for a gpio.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/gpio/sandbox.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/sandbox.c b/drivers/gpio/sandbox.c
index 75ada5d..7aa8b1f 100644
--- a/drivers/gpio/sandbox.c
+++ b/drivers/gpio/sandbox.c
@@ -203,6 +203,13 @@ static int sb_gpio_get_state(struct udevice *dev, unsigned int offset,
 	return 0;
 }
 
+static int sb_gpio_get_function(struct udevice *dev, unsigned offset)
+{
+	if (get_gpio_flag(dev, offset, GPIOF_OUTPUT))
+		return GPIOF_OUTPUT;
+	return GPIOF_INPUT;
+}
+
 static const struct dm_gpio_ops gpio_sandbox_ops = {
 	.request		= sb_gpio_request,
 	.free			= sb_gpio_free,
@@ -210,7 +217,7 @@ static const struct dm_gpio_ops gpio_sandbox_ops = {
 	.direction_output	= sb_gpio_direction_output,
 	.get_value		= sb_gpio_get_value,
 	.set_value		= sb_gpio_set_value,
-	.get_state		= sb_gpio_get_state,
+	.get_function		= sb_gpio_get_function,
 };
 
 static int sandbox_gpio_ofdata_to_platdata(struct udevice *dev)
-- 
2.1.0.rc2.206.gedb03e5