1 files changed, 47 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-4.9/0002-gpio-stp-xway-Implement-get-callback.patch b/target/linux/lantiq/patches-4.9/0002-gpio-stp-xway-Implement-get-callback.patch
new file mode 100644
index 0000000..c32b3d6
--- /dev/null
+++ b/target/linux/lantiq/patches-4.9/0002-gpio-stp-xway-Implement-get-callback.patch
@@ -0,0 +1,47 @@
+From 5b9b2b5284f81941972105b13337c58489ea8fca Mon Sep 17 00:00:00 2001
+From: Mathias Kresin <dev@kresin.me>
+Date: Thu, 28 Jun 2018 21:57:40 +0200
+Subject: [PATCH] gpio: stp-xway: Implement get callback
+
+Add an implementation to get the current GPIO state.
+
+The callback is used by the leds-gpio driver for example, in case the
+current LED/GPIO state should be kept during driver load.
+
+Signed-off-by: Mathias Kresin <dev@kresin.me>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/gpio/gpio-stp-xway.c | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+--- a/drivers/gpio/gpio-stp-xway.c
++++ b/drivers/gpio/gpio-stp-xway.c
+@@ -91,6 +91,20 @@ struct xway_stp {
+ };
+ 
+ /**
++ * xway_stp_get() - gpio_chip->get - get gpios.
++ * @gc:     Pointer to gpio_chip device structure.
++ * @gpio:   GPIO signal number.
++ *
++ * Gets the shadow value.
++ */
++static int xway_stp_get(struct gpio_chip *gc, unsigned int gpio)
++{
++	struct xway_stp *chip = gpiochip_get_data(gc);
++
++	return (xway_stp_r32(chip->virt, XWAY_STP_CPU0) & BIT(gpio));
++}
++
++/**
+  * xway_stp_set() - gpio_chip->set - set gpios.
+  * @gc:     Pointer to gpio_chip device structure.
+  * @gpio:   GPIO signal number.
+@@ -215,6 +229,7 @@ static int xway_stp_probe(struct platfor
+ 	chip->gc.parent = &pdev->dev;
+ 	chip->gc.label = "stp-xway";
+ 	chip->gc.direction_output = xway_stp_dir_out;
++	chip->gc.get = xway_stp_get;
+ 	chip->gc.set = xway_stp_set;
+ 	chip->gc.request = xway_stp_request;
+ 	chip->gc.base = -1;