summaryrefslogtreecommitdiffstats
path: root/drivers/gpio/gpiolib-of.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpio/gpiolib-of.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpio/gpiolib-of.h')
-rw-r--r--drivers/gpio/gpiolib-of.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-of.h b/drivers/gpio/gpiolib-of.h
new file mode 100644
index 000000000..6b3a5347c
--- /dev/null
+++ b/drivers/gpio/gpiolib-of.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef GPIOLIB_OF_H
+#define GPIOLIB_OF_H
+
+#include <linux/err.h>
+#include <linux/types.h>
+
+#include <linux/notifier.h>
+
+struct device;
+
+struct gpio_chip;
+struct gpio_desc;
+struct gpio_device;
+
+#ifdef CONFIG_OF_GPIO
+struct gpio_desc *of_find_gpio(struct device_node *np,
+ const char *con_id,
+ unsigned int idx,
+ unsigned long *lookupflags);
+int of_gpiochip_add(struct gpio_chip *gc);
+void of_gpiochip_remove(struct gpio_chip *gc);
+int of_gpio_get_count(struct device *dev, const char *con_id);
+#else
+static inline struct gpio_desc *of_find_gpio(struct device_node *np,
+ const char *con_id,
+ unsigned int idx,
+ unsigned long *lookupflags)
+{
+ return ERR_PTR(-ENOENT);
+}
+static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
+static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
+static inline int of_gpio_get_count(struct device *dev, const char *con_id)
+{
+ return 0;
+}
+#endif /* CONFIG_OF_GPIO */
+
+extern struct notifier_block gpio_of_notifier;
+
+#endif /* GPIOLIB_OF_H */