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Merge branch 'linus' into sched/core
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Merge reason: we'll queue up dependent patches.

Signed-off-by: Ingo Molnar <[email protected]>
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Ingo Molnar committed Mar 1, 2012
2 parents de5bdff + 164974a commit 7e4d960
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12 changes: 10 additions & 2 deletions Documentation/DocBook/device-drivers.tmpl
Original file line number Diff line number Diff line change
Expand Up @@ -102,9 +102,12 @@ X!Iinclude/linux/kobject.h
!Iinclude/linux/device.h
</sect1>
<sect1><title>Device Drivers Base</title>
!Idrivers/base/init.c
!Edrivers/base/driver.c
!Edrivers/base/core.c
!Edrivers/base/syscore.c
!Edrivers/base/class.c
!Idrivers/base/node.c
!Edrivers/base/firmware_class.c
!Edrivers/base/transport_class.c
<!-- Cannot be included, because
Expand All @@ -113,13 +116,18 @@ X!Iinclude/linux/kobject.h
exceed allowed 44 characters maximum
X!Edrivers/base/attribute_container.c
-->
!Edrivers/base/sys.c
!Edrivers/base/dd.c
<!--
X!Edrivers/base/interface.c
-->
!Iinclude/linux/platform_device.h
!Edrivers/base/platform.c
!Edrivers/base/bus.c
</sect1>
<sect1><title>Device Drivers DMA Management</title>
!Edrivers/base/dma-buf.c
!Edrivers/base/dma-coherent.c
!Edrivers/base/dma-mapping.c
</sect1>
<sect1><title>Device Drivers Power Management</title>
!Edrivers/base/power/main.c
Expand Down Expand Up @@ -219,7 +227,7 @@ X!Isound/sound_firmware.c
<chapter id="uart16x50">
<title>16x50 UART Driver</title>
!Edrivers/tty/serial/serial_core.c
!Edrivers/tty/serial/8250.c
!Edrivers/tty/serial/8250/8250.c
</chapter>

<chapter id="fbdev">
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4 changes: 4 additions & 0 deletions Documentation/driver-model/devres.txt
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Expand Up @@ -233,6 +233,10 @@ certainly invest a bit more effort into libata core layer).
6. List of managed interfaces
-----------------------------

MEM
devm_kzalloc()
devm_kfree()

IO region
devm_request_region()
devm_request_mem_region()
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14 changes: 14 additions & 0 deletions Documentation/feature-removal-schedule.txt
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Expand Up @@ -510,3 +510,17 @@ Why: The pci_scan_bus_parented() interface creates a new root bus. The
convert to using pci_scan_root_bus() so they can supply a list of
bus resources when the bus is created.
Who: Bjorn Helgaas <[email protected]>

----------------------------

What: The CAP9 SoC family will be removed
When: 3.4
Files: arch/arm/mach-at91/at91cap9.c
arch/arm/mach-at91/at91cap9_devices.c
arch/arm/mach-at91/include/mach/at91cap9.h
arch/arm/mach-at91/include/mach/at91cap9_matrix.h
arch/arm/mach-at91/include/mach/at91cap9_ddrsdr.h
arch/arm/mach-at91/board-cap9adk.c
Why: The code is not actively maintained and platforms are now hard to find.
Who: Nicolas Ferre <[email protected]>
Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
72 changes: 64 additions & 8 deletions Documentation/input/event-codes.txt
Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,11 @@ reports supported by a device are also provided by sysfs in
class/input/event*/device/capabilities/, and the properties of a device are
provided in class/input/event*/device/properties.

Types:
==========
Types are groupings of codes under a logical input construct. Each type has a
set of applicable codes to be used in generating events. See the Codes section
for details on valid codes for each type.
Event types:
===========
Event types are groupings of codes under a logical input construct. Each
type has a set of applicable codes to be used in generating events. See the
Codes section for details on valid codes for each type.

* EV_SYN:
- Used as markers to separate events. Events may be separated in time or in
Expand Down Expand Up @@ -63,9 +63,9 @@ for details on valid codes for each type.
* EV_FF_STATUS:
- Used to receive force feedback device status.

Codes:
==========
Codes define the precise type of event.
Event codes:
===========
Event codes define the precise type of event.

EV_SYN:
----------
Expand Down Expand Up @@ -220,6 +220,56 @@ EV_PWR:
EV_PWR events are a special type of event used specifically for power
mangement. Its usage is not well defined. To be addressed later.

Device properties:
=================
Normally, userspace sets up an input device based on the data it emits,
i.e., the event types. In the case of two devices emitting the same event
types, additional information can be provided in the form of device
properties.

INPUT_PROP_DIRECT + INPUT_PROP_POINTER:
--------------------------------------
The INPUT_PROP_DIRECT property indicates that device coordinates should be
directly mapped to screen coordinates (not taking into account trivial
transformations, such as scaling, flipping and rotating). Non-direct input
devices require non-trivial transformation, such as absolute to relative
transformation for touchpads. Typical direct input devices: touchscreens,
drawing tablets; non-direct devices: touchpads, mice.

The INPUT_PROP_POINTER property indicates that the device is not transposed
on the screen and thus requires use of an on-screen pointer to trace user's
movements. Typical pointer devices: touchpads, tablets, mice; non-pointer
device: touchscreen.

If neither INPUT_PROP_DIRECT or INPUT_PROP_POINTER are set, the property is
considered undefined and the device type should be deduced in the
traditional way, using emitted event types.

INPUT_PROP_BUTTONPAD:
--------------------
For touchpads where the button is placed beneath the surface, such that
pressing down on the pad causes a button click, this property should be
set. Common in clickpad notebooks and macbooks from 2009 and onwards.

Originally, the buttonpad property was coded into the bcm5974 driver
version field under the name integrated button. For backwards
compatibility, both methods need to be checked in userspace.

INPUT_PROP_SEMI_MT:
------------------
Some touchpads, most common between 2008 and 2011, can detect the presence
of multiple contacts without resolving the individual positions; only the
number of contacts and a rectangular shape is known. For such
touchpads, the semi-mt property should be set.

Depending on the device, the rectangle may enclose all touches, like a
bounding box, or just some of them, for instance the two most recent
touches. The diversity makes the rectangle of limited use, but some
gestures can normally be extracted from it.

If INPUT_PROP_SEMI_MT is not set, the device is assumed to be a true MT
device.

Guidelines:
==========
The guidelines below ensure proper single-touch and multi-finger functionality.
Expand All @@ -240,6 +290,8 @@ used to report when a touch is active on the screen.
BTN_{MOUSE,LEFT,MIDDLE,RIGHT} must not be reported as the result of touch
contact. BTN_TOOL_<name> events should be reported where possible.

For new hardware, INPUT_PROP_DIRECT should be set.

Trackpads:
----------
Legacy trackpads that only provide relative position information must report
Expand All @@ -250,6 +302,8 @@ location of the touch. BTN_TOUCH should be used to report when a touch is active
on the trackpad. Where multi-finger support is available, BTN_TOOL_<name> should
be used to report the number of touches active on the trackpad.

For new hardware, INPUT_PROP_POINTER should be set.

Tablets:
----------
BTN_TOOL_<name> events must be reported when a stylus or other tool is active on
Expand All @@ -260,3 +314,5 @@ button may be used for buttons on the tablet except BTN_{MOUSE,LEFT}.
BTN_{0,1,2,etc} are good generic codes for unlabeled buttons. Do not use
meaningful buttons, like BTN_FORWARD, unless the button is labeled for that
purpose on the device.

For new hardware, both INPUT_PROP_DIRECT and INPUT_PROP_POINTER should be set.
17 changes: 8 additions & 9 deletions Documentation/pinctrl.txt
Original file line number Diff line number Diff line change
Expand Up @@ -857,42 +857,41 @@ case), we define a mapping like this:

...
{
.name "2bit"
.name = "2bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
.name = "4bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
.name = "4bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_3_grp",
Expand Down Expand Up @@ -995,7 +994,7 @@ This is enabled by simply setting the .hog_on_boot field in the map to true,
like this:

{
.name "POWERMAP"
.name = "POWERMAP"
.ctrl_dev_name = "pinctrl-foo",
.function = "power_func",
.hog_on_boot = true,
Expand Down Expand Up @@ -1025,7 +1024,7 @@ it, disables and releases it, and muxes it in on the pins defined by group B:

foo_switch()
{
struct pinmux pmx;
struct pinmux *pmx;

/* Enable on position A */
pmx = pinmux_get(&device, "spi0-pos-A");
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3 changes: 2 additions & 1 deletion Documentation/stable_kernel_rules.txt
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,8 @@ Procedure for submitting patches to the -stable tree:

- Send the patch, after verifying that it follows the above rules, to
[email protected]. You must note the upstream commit ID in the
changelog of your submission.
changelog of your submission, as well as the kernel version you wish
it to be applied to.
- To have the patch automatically included in the stable tree, add the tag
Cc: [email protected]
in the sign-off area. Once the patch is merged it will be applied to
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2 changes: 2 additions & 0 deletions Documentation/sysctl/kernel.txt
Original file line number Diff line number Diff line change
Expand Up @@ -601,6 +601,8 @@ can be ORed together:
instead of using the one provided by the hardware.
512 - A kernel warning has occurred.
1024 - A module from drivers/staging was loaded.
2048 - The system is working around a severe firmware bug.
4096 - An out-of-tree module has been loaded.

==============================================================

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2 changes: 0 additions & 2 deletions Documentation/virtual/00-INDEX
Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,6 @@ Virtualization support in the Linux kernel.
- this file.
kvm/
- Kernel Virtual Machine. See also http://linux-kvm.org
lguest/
- Extremely simple hypervisor for experimental/educational use.
uml/
- User Mode Linux, builds/runs Linux kernel as a userspace program.
virtio.txt
Expand Down
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