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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 16:02:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 16:02:13 -0700
commit5d4e2d08e7fdf7339f84a1c670d296a77e02f881 (patch)
tree1c419660defa56191091dfdf50fdb57a72009173 /include/linux/extcon/extcon_gpio.h
parentfb2123fad3b499f0898835b19dbb93b18d27ee98 (diff)
parent94ca629e40eb7e997be21d8065c25e4f3797b03f (diff)
downloadlwn-5d4e2d08e7fdf7339f84a1c670d296a77e02f881.tar.gz
lwn-5d4e2d08e7fdf7339f84a1c670d296a77e02f881.zip
Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman: "Here's the driver core, and other driver subsystems, pull request for the 3.5-rc1 merge window. Outside of a few minor driver core changes, we ended up with the following different subsystem and core changes as well, due to interdependancies on the driver core: - hyperv driver updates - drivers/memory being created and some drivers moved into it - extcon driver subsystem created out of the old Android staging switch driver code - dynamic debug updates - printk rework, and /dev/kmsg changes All of this has been tested in the linux-next releases for a few weeks with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed that a patch to the deleted drivers/misc/max8997-muic.c driver needs to be applied to this one. * tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits) uio_pdrv_genirq: get irq through platform resource if not set otherwise memory: tegra{20,30}-mc: Remove empty *_remove() printk() - isolate KERN_CONT users from ordinary complete lines sysfs: get rid of some lockdep false positives Drivers: hv: util: Properly handle version negotiations. Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp() memory: tegra{20,30}-mc: Use dev_err_ratelimited() driver core: Add dev_*_ratelimited() family Driver Core: don't oops with unregistered driver in driver_find_device() printk() - restore prefix/timestamp printing for multi-newline strings printk: add stub for prepend_timestamp() ARM: tegra30: Make MC optional in Kconfig ARM: tegra20: Make MC optional in Kconfig ARM: tegra30: MC: Remove unnecessary BUG*() ARM: tegra20: MC: Remove unnecessary BUG*() printk: correctly align __log_buf ARM: tegra30: Add Tegra Memory Controller(MC) driver ARM: tegra20: Add Tegra Memory Controller(MC) driver printk() - restore timestamp printing at console output printk() - do not merge continuation lines of different threads ...
Diffstat (limited to 'include/linux/extcon/extcon_gpio.h')
-rw-r--r--include/linux/extcon/extcon_gpio.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/extcon/extcon_gpio.h b/include/linux/extcon/extcon_gpio.h
new file mode 100644
index 000000000000..a2129b73dcb1
--- /dev/null
+++ b/include/linux/extcon/extcon_gpio.h
@@ -0,0 +1,52 @@
+/*
+ * External connector (extcon) class generic GPIO driver
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Author: MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * based on switch class driver
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+*/
+#ifndef __EXTCON_GPIO_H__
+#define __EXTCON_GPIO_H__ __FILE__
+
+#include <linux/extcon.h>
+
+/**
+ * struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device.
+ * @name The name of this GPIO extcon device.
+ * @gpio Corresponding GPIO.
+ * @debounce Debounce time for GPIO IRQ in ms.
+ * @irq_flags IRQ Flags (e.g., IRQF_TRIGGER_LOW).
+ * @state_on print_state is overriden with state_on if attached. If Null,
+ * default method of extcon class is used.
+ * @state_off print_state is overriden with state_on if dettached. If Null,
+ * default method of extcon class is used.
+ *
+ * Note that in order for state_on or state_off to be valid, both state_on
+ * and state_off should be not NULL. If at least one of them is NULL,
+ * the print_state is not overriden.
+ */
+struct gpio_extcon_platform_data {
+ const char *name;
+ unsigned gpio;
+ unsigned long debounce;
+ unsigned long irq_flags;
+
+ /* if NULL, "0" or "1" will be printed */
+ const char *state_on;
+ const char *state_off;
+};
+
+#endif /* __EXTCON_GPIO_H__ */