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Make note of the legacy "probe-the-hardware" drivers, and some APIs that
are mostly unused except by such drivers. We probably can't escape having
legacy drivers for a while (e.g. old ISA drivers), but we can at least
discourage this style code for new drivers, and unless it's unavoidable.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Andres Salomon <dilinger@debian.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix various typos in kernel docs and Kconfigs, 2.6.21-rc4.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Above and below we talk about my_midlayer_create_something, I assume that is
also meant here.
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Found a couple of typos in the Documentation/driver-model/platform.txt
file. This patch fixes both of them.
Signed-off-by: Erik Hovland <erik@hovland.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Implement device resource management, in short, devres. A device
driver can allocate arbirary size of devres data which is associated
with a release function. On driver detach, release function is
invoked on the devres data, then, devres data is freed.
devreses are typed by associated release functions. Some devreses are
better represented by single instance of the type while others need
multiple instances sharing the same release function. Both usages are
supported.
devreses can be grouped using devres group such that a device driver
can easily release acquired resources halfway through initialization
or selectively release resources (e.g. resources for port 1 out of 4
ports).
This patch adds devres core including documentation and the following
managed interfaces.
* alloc/free : devm_kzalloc(), devm_kzfree()
* IO region : devm_request_region(), devm_release_region()
* IRQ : devm_request_irq(), devm_free_irq()
* DMA : dmam_alloc_coherent(), dmam_free_coherent(),
dmam_declare_coherent_memory(), dmam_pool_create(),
dmam_pool_destroy()
* PCI : pcim_enable_device(), pcim_pin_device(), pci_is_managed()
* iomap : devm_ioport_map(), devm_ioport_unmap(), devm_ioremap(),
devm_ioremap_nocache(), devm_iounmap(), pcim_iomap_table(),
pcim_iomap(), pcim_iounmap()
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
Driver core: show drivers in /sys/module/
Documentation/driver-model/platform.txt update/rewrite
Driver core: platform_driver_probe(), can save codespace
driver core: Use klist_remove() in device_move()
driver core: Introduce device_move(): move a device to a new parent.
Driver core: make drivers/base/core.c:setup_parent() static
driver core: Introduce device_find_child().
sysfs: sysfs_write_file() writes zero terminated data
cpu topology: consider sysfs_create_group return value
Driver core: Call platform_notify_remove later
ACPI: Change ACPI to use dev_archdata instead of firmware_data
Driver core: add dev_archdata to struct device
Driver core: convert sound core to use struct device
Driver core: change mem class_devices to be real devices
Driver core: convert fb code to use struct device
Driver core: convert firmware code to use struct device
Driver core: convert mmc code to use struct device
Driver core: convert ppdev code to use struct device
Driver core: convert PPP code to use struct device
Driver core: convert cpuid code to use struct device
...
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This is almost a rewrite of the driver-model/platform.txt documentation;
the previous text was obsolete (for several years), evidently it never
got updated to match the change from being a PC "legacy_bus" to the more
widely used core bus for most embedded systems.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch fixes typos in various Documentation txts. The patch addresses some
misc words.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Remove many duplicated words under Documentation/ and do other small
cleanups.
Examples:
"and and" --> "and"
"in in" --> "in"
"the the" --> "the"
"the the" --> "to the"
...
Signed-off-by: Paolo Ornati <ornati@fastwebnet.it>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'Q'-'R'.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'H'-'M'.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Edits to the driver-model documentation for grammar, clarity and content.
These docs haven't been updated in years, and some of the technical content
and discussion has become stale; this patch updates these. In addition,
some of the language is awkward. Fix this.
(I'm trying to cleanup the other files in this directory also,
patches for these will come a bit later).
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In PM v1, all devices were called at SUSPEND_DISABLE level. Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level. However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.
Since this is obsolete infrastructure which is no longer necessary,
we can remove it. Here's an (untested) patch to do exactly that.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The document porting.txt in Documentation/driver-model says:
When a device is successfully bound to a device
I think it should say:
When a device is successfully bound to a driver
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This updates some driver data documentation:
- removes references to some fields that haven't been there for a
long time now, e.g. pre-kobject or even older;
- giving more information about the probe() method;
- adding an example of how platform_data is used
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I thought I'm done with fixing u32 vs. pm_message_t ... unfortunately
that turned out not to be the case as Russel King pointed out. Here are
fixes for Documentation and common code (mainly system devices).
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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