Merge tag 'u-boot-imx-20190719' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

[platform/kernel/u-boot.git] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index bf230c1..37f71e5 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -1,7 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
  * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef _ASM_GENERIC_GPIO_H_
@@ -349,6 +349,22 @@ const char *gpio_get_bank_info(struct udevice *dev, int *offset_count);
 int dm_gpio_lookup_name(const char *name, struct gpio_desc *desc);
 
 /**
+ * gpio_hog_lookup_name() - Look up a named GPIO and return the gpio descr.
+ *
+ * @name:      Name to look up
+ * @return:    Returns gpio_desc for gpio
+ */
+struct gpio_desc *gpio_hog_lookup_name(const char *name);
+
+/**
+ * gpio_hog_probe_all() - probe all gpio devices with
+ * gpio-hog subnodes.
+ *
+ * @return:    Returns return value from device_probe()
+ */
+int gpio_hog_probe_all(void);
+
+/**
  * gpio_lookup_name - Look up a GPIO name and return its details
  *
  * This is used to convert a named GPIO into a device, offset and GPIO
@@ -504,6 +520,22 @@ int gpio_request_list_by_name_nodev(ofnode node, const char *list_name,
                                    int flags);
 
 /**
+ * gpio_dev_request_index() - request single GPIO from gpio device
+ *
+ * @dev:       GPIO device
+ * @nodename:  Name of node
+ * @list_name: Name of GPIO list (e.g. "board-id-gpios")
+ * @index:     Index number of the GPIO in that list use request (0=first)
+ * @flags:     GPIOD_* flags
+ * @dtflags:   GPIO flags read from DT
+ * @desc:      GPIO descriotor filled from this function
+ * @return:    return value from gpio_request_tail()
+ */
+int gpio_dev_request_index(struct udevice *dev, const char *nodename,
+                          char *list_name, int index, int flags,
+                          int dtflags, struct gpio_desc *desc);
+
+/**
  * dm_gpio_free() - Free a single GPIO
  *
  * This frees a single GPIOs previously returned from gpio_request_by_name().