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Needed for the omap timer changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Arnd Bergmann committed Nov 15, 2012
2 parents b770ea5 + d308ba5 commit 8dbd287
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4 changes: 2 additions & 2 deletions Documentation/00-INDEX
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Expand Up @@ -210,6 +210,8 @@ local_ops.txt
- semantics and behavior of local atomic operations.
lockdep-design.txt
- documentation on the runtime locking correctness validator.
lockup-watchdogs.txt
- info on soft and hard lockup detectors (aka nmi_watchdog).
logo.gif
- full colour GIF image of Linux logo (penguin - Tux).
logo.txt
Expand Down Expand Up @@ -240,8 +242,6 @@ netlabel/
- directory with information on the NetLabel subsystem.
networking/
- directory with info on various aspects of networking with Linux.
nmi_watchdog.txt
- info on NMI watchdog for SMP systems.
nommu-mmap.txt
- documentation about no-mmu memory mapping support.
numastat.txt
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2 changes: 1 addition & 1 deletion Documentation/devicetree/bindings/arm/atmel-at91.txt
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Expand Up @@ -8,7 +8,7 @@ PIT Timer required properties:
shared across all System Controller members.

TC/TCLIB Timer required properties:
- compatible: Should be "atmel,<chip>-pit".
- compatible: Should be "atmel,<chip>-tcb".
<chip> can be "at91rm9200" or "at91sam9x5"
- reg: Should contain registers location and length
- interrupts: Should contain all interrupts for the TC block
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15 changes: 15 additions & 0 deletions Documentation/devicetree/bindings/arm/omap/counter.txt
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@@ -0,0 +1,15 @@
OMAP Counter-32K bindings

Required properties:
- compatible: Must be "ti,omap-counter32k" for OMAP controllers
- reg: Contains timer register address range (base address and length)
- ti,hwmods: Name of the hwmod associated to the counter, which is typically
"counter_32k"

Example:

counter32k: counter@4a304000 {
compatible = "ti,omap-counter32k";
reg = <0x4a304000 0x20>;
ti,hwmods = "counter_32k";
};
31 changes: 31 additions & 0 deletions Documentation/devicetree/bindings/arm/omap/timer.txt
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OMAP Timer bindings

Required properties:
- compatible: Must be "ti,omap2-timer" for OMAP2+ controllers.
- reg: Contains timer register address range (base address and
length).
- interrupts: Contains the interrupt information for the timer. The
format is being dependent on which interrupt controller
the OMAP device uses.
- ti,hwmods: Name of the hwmod associated to the timer, "timer<X>",
where <X> is the instance number of the timer from the
HW spec.

Optional properties:
- ti,timer-alwon: Indicates the timer is in an alway-on power domain.
- ti,timer-dsp: Indicates the timer can interrupt the on-chip DSP in
addition to the ARM CPU.
- ti,timer-pwm: Indicates the timer can generate a PWM output.
- ti,timer-secure: Indicates the timer is reserved on a secure OMAP device
and therefore cannot be used by the kernel.

Example:

timer12: timer@48304000 {
compatible = "ti,omap2-timer";
reg = <0x48304000 0x400>;
interrupts = <95>;
ti,hwmods = "timer12"
ti,timer-alwon;
ti,timer-secure;
};
18 changes: 18 additions & 0 deletions Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
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Expand Up @@ -2,9 +2,27 @@

properties:
- compatible : Should be "ti,omap-ocp2scp"
- reg : Address and length of the register set for the device
- #address-cells, #size-cells : Must be present if the device has sub-nodes
- ranges : the child address space are mapped 1:1 onto the parent address space
- ti,hwmods : must be "ocp2scp_usb_phy"

Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp

ocp2scp@4a0ad000 {
compatible = "ti,omap-ocp2scp";
reg = <0x4a0ad000 0x1f>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";

subnode1 {
...
};

subnode2 {
...
};
};
2 changes: 2 additions & 0 deletions Documentation/devicetree/bindings/i2c/trivial-devices.txt
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Expand Up @@ -55,5 +55,7 @@ st-micro,24c256 i2c serial eeprom (24cxx)
stm,m41t00 Serial Access TIMEKEEPER
stm,m41t62 Serial real-time clock (RTC) with alarm
stm,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS
taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface
ti,tsc2003 I2C Touch-Screen Controller
ti,tmp102 Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
ti,tmp275 Digital Temperature Sensor
19 changes: 19 additions & 0 deletions Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt
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* EETI eGalax Multiple Touch Controller

Required properties:
- compatible: must be "eeti,egalax_ts"
- reg: i2c slave address
- interrupt-parent: the phandle for the interrupt controller
- interrupts: touch controller interrupt
- wakeup-gpios: the gpio pin to be used for waking up the controller
as well as uased as irq pin

Example:

egalax_ts@04 {
compatible = "eeti,egalax_ts";
reg = <0x04>;
interrupt-parent = <&gpio1>;
interrupts = <9 2>;
wakeup-gpios = <&gpio1 9 0>;
};
Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,7 @@ Valid values for pin and group names are:

With some exceptions, these support nvidia,high-speed-mode,
nvidia,schmitt, nvidia,low-power-mode, nvidia,pull-down-strength,
nvidia,pull-up-strength, nvidia,slew_rate-rising, nvidia,slew_rate-falling.
nvidia,pull-up-strength, nvidia,slew-rate-rising, nvidia,slew-rate-falling.

drive_ao1, drive_ao2, drive_at1, drive_at2, drive_cdev1, drive_cdev2,
drive_csus, drive_dap1, drive_dap2, drive_dap3, drive_dap4, drive_dbg,
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Expand Up @@ -83,7 +83,7 @@ Valid values for pin and group names are:
drive groups:

These all support nvidia,pull-down-strength, nvidia,pull-up-strength,
nvidia,slew_rate-rising, nvidia,slew_rate-falling. Most but not all
nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all
support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode.

ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, cec, crt, csus, dap1,
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21 changes: 21 additions & 0 deletions Documentation/devicetree/bindings/usb/am33xx-usb.txt
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@@ -1,5 +1,7 @@
AM33XX MUSB GLUE
- compatible : Should be "ti,musb-am33xx"
- reg : offset and length of register sets, first usbss, then for musb instances
- interrupts : usbss, musb instance interrupts in order
- ti,hwmods : must be "usb_otg_hs"
- multipoint : Should be "1" indicating the musb controller supports
multipoint. This is a MUSB configuration-specific setting.
Expand All @@ -12,3 +14,22 @@ AM33XX MUSB GLUE
represents PERIPHERAL.
- power : Should be "250". This signifies the controller can supply upto
500mA when operating in host mode.

Example:

usb@47400000 {
compatible = "ti,musb-am33xx";
reg = <0x47400000 0x1000 /* usbss */
0x47401000 0x800 /* musb instance 0 */
0x47401800 0x800>; /* musb instance 1 */
interrupts = <17 /* usbss */
18 /* musb instance 0 */
19>; /* musb instance 1 */
multipoint = <1>;
num-eps = <16>;
ram-bits = <12>;
port0-mode = <3>;
port1-mode = <3>;
power = <250>;
ti,hwmods = "usb_otg_hs";
};
26 changes: 17 additions & 9 deletions Documentation/firmware_class/README
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Expand Up @@ -18,32 +18,40 @@
High level behavior (mixed):
============================

kernel(driver): calls request_firmware(&fw_entry, $FIRMWARE, device)

userspace:
1), kernel(driver):
- calls request_firmware(&fw_entry, $FIRMWARE, device)
- kernel searchs the fimware image with name $FIRMWARE directly
in the below search path of root filesystem:
"/lib/firmware/updates/" UTS_RELEASE,
"/lib/firmware/updates",
"/lib/firmware/" UTS_RELEASE,
"/lib/firmware"
- If found, goto 7), else goto 2)

2), userspace:
- /sys/class/firmware/xxx/{loading,data} appear.
- hotplug gets called with a firmware identifier in $FIRMWARE
and the usual hotplug environment.
- hotplug: echo 1 > /sys/class/firmware/xxx/loading

kernel: Discard any previous partial load.
3), kernel: Discard any previous partial load.

userspace:
4), userspace:
- hotplug: cat appropriate_firmware_image > \
/sys/class/firmware/xxx/data

kernel: grows a buffer in PAGE_SIZE increments to hold the image as it
5), kernel: grows a buffer in PAGE_SIZE increments to hold the image as it
comes in.

userspace:
6), userspace:
- hotplug: echo 0 > /sys/class/firmware/xxx/loading

kernel: request_firmware() returns and the driver has the firmware
7), kernel: request_firmware() returns and the driver has the firmware
image in fw_entry->{data,size}. If something went wrong
request_firmware() returns non-zero and fw_entry is set to
NULL.

kernel(driver): Driver code calls release_firmware(fw_entry) releasing
8), kernel(driver): Driver code calls release_firmware(fw_entry) releasing
the firmware image and any related resource.

High level behavior (driver code):
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2 changes: 1 addition & 1 deletion Documentation/hwmon/fam15h_power
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Expand Up @@ -10,7 +10,7 @@ Supported chips:
BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
(not yet published)

Author: Andreas Herrmann <andreas.herrmann3@amd.com>
Author: Andreas Herrmann <herrmann.der.user@googlemail.com>

Description
-----------
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39 changes: 39 additions & 0 deletions Documentation/zh_CN/IRQ.txt
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Chinese translated version of Documentation/IRQ.txt

If you have any comment or update to the content, please contact the
original document maintainer directly. However, if you have a problem
communicating in English you can also ask the Chinese maintainer for
help. Contact the Chinese maintainer if this translation is outdated
or if there is a problem with the translation.

Maintainer: Eric W. Biederman <ebiederman@xmission.com>
Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
---------------------------------------------------------------------
Documentation/IRQ.txt 的中文翻译

如果想评论或更新本文的内容,请直接联系原文档的维护者。如果你使用英文
交流有困难的话,也可以向中文版维护者求助。如果本翻译更新不及时或者翻
译存在问题,请联系中文版维护者。
英文版维护者: Eric W. Biederman <ebiederman@xmission.com>
中文版维护者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
中文版翻译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
中文版校译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>


以下为正文
---------------------------------------------------------------------
何为 IRQ?

一个 IRQ 是来自某个设备的一个中断请求。目前,它们可以来自一个硬件引脚,
或来自一个数据包。多个设备可能连接到同个硬件引脚,从而共享一个 IRQ。

一个 IRQ 编号是用于告知硬件中断源的内核标识。通常情况下,这是一个
全局 irq_desc 数组的索引,但是除了在 linux/interrupt.h 中的实现,
具体的细节是体系结构特定的。

一个 IRQ 编号是设备上某个可能的中断源的枚举。通常情况下,枚举的编号是
该引脚在系统内中断控制器的所有输入引脚中的编号。对于 ISA 总线中的情况,
枚举的是在两个 i8259 中断控制器中 16 个输入引脚。

架构可以对 IRQ 编号指定额外的含义,在硬件涉及任何手工配置的情况下,
是被提倡的。ISA 的 IRQ 是一个分配这类额外含义的典型例子。
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