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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 19:22:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 19:22:48 +0300
commita91ab911df51ac364e594d5950ed508d91091498 (patch)
tree035d64bd871f752b74f9e8128244311e702d95d4 /include/linux/platform_data
parentaf3c8d98508d37541d4bf57f13a984a7f73a328c (diff)
parent837c194a4dfedd69ddbd5a586401380190776f48 (diff)
downloadlinux-a91ab911df51ac364e594d5950ed508d91091498.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina: - open/close tracking improvements from Dmitry Torokhov - battery support improvements in Wacom driver from Jason Gerecke - Win8 support fixes from Benjamin Tissories and Hans de Geode - misc fixes to Intel-ISH driver from Arnd Bergmann - support for quite a few new devices and small assorted fixes here and there * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (35 commits) HID: intel-ish-hid: Enable Gemini Lake ish driver HID: intel-ish-hid: Enable Cannon Lake ish driver HID: wacom: fix mistake in printk HID: multitouch: optimize the sticky fingers timer HID: multitouch: fix rare Win 8 cases when the touch up event gets missing HID: multitouch: use BIT macro HID: Add driver for Retrode2 joypad adapter HID: multitouch: Add support for Google Rose Touchpad HID: multitouch: Support PTP Stick and Touchpad device HID: core: don't use negative operands when shift HID: apple: Use country code to detect ISO keyboards HID: remove no longer used hid->open field greybus: hid: remove custom locking from gb_hid_open/close HID: usbhid: remove custom locking from usbhid_open/close HID: i2c-hid: remove custom locking from i2c_hid_open/close HID: serialize hid_hw_open and hid_hw_close HID: usbhid: do not rely on hid->open when deciding to do IO HID: hiddev: use hid_hw_power instead of usbhid_get/put_power HID: hiddev: use hid_hw_open/close instead of usbhid_open/close HID: asus: Add support for Zen AiO MD-5110 keyboard ...
Diffstat (limited to 'include/linux/platform_data')
-rw-r--r--include/linux/platform_data/i2c-hid.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-hid.h b/include/linux/platform_data/i2c-hid.h
new file mode 100644
index 000000000000..1fb088239d12
--- /dev/null
+++ b/include/linux/platform_data/i2c-hid.h
@@ -0,0 +1,42 @@
+/*
+ * HID over I2C protocol implementation
+ *
+ * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef __LINUX_I2C_HID_H
+#define __LINUX_I2C_HID_H
+
+#include <linux/types.h>
+
+struct regulator;
+
+/**
+ * struct i2chid_platform_data - used by hid over i2c implementation.
+ * @hid_descriptor_address: i2c register where the HID descriptor is stored.
+ * @supply: regulator for powering on the device.
+ * @post_power_delay_ms: delay after powering on before device is usable.
+ *
+ * Note that it is the responsibility of the platform driver (or the acpi 5.0
+ * driver, or the flattened device tree) to setup the irq related to the gpio in
+ * the struct i2c_board_info.
+ * The platform driver should also setup the gpio according to the device:
+ *
+ * A typical example is the following:
+ * irq = gpio_to_irq(intr_gpio);
+ * hkdk4412_i2c_devs5[0].irq = irq; // store the irq in i2c_board_info
+ * gpio_request(intr_gpio, "elan-irq");
+ * s3c_gpio_setpull(intr_gpio, S3C_GPIO_PULL_UP);
+ */
+struct i2c_hid_platform_data {
+ u16 hid_descriptor_address;
+ struct regulator *supply;
+ int post_power_delay_ms;
+};
+
+#endif /* __LINUX_I2C_HID_H */