linux-toradex.git/drivers/input/misc, branch v2.6.21-rc2

[PATCH] mark struct file_operations const 3

2007-02-12T17:48:45+00:00

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Input: wistron - add support for Fujitsu-Siemens Amilo D88x0

2007-02-10T06:29:42+00:00

Tested on a Amilo D8820.

Signed-off-by: Michael Leun 
Signed-off-by: Dmitry Torokhov

Input: add Atlas button driver

2007-02-10T06:29:00+00:00

This patch adds support for the buttons on the Atlas wallmount
touchscreen.

Signed-off-by: Jaya Kumar 
Acked-by: Len Brown 
Signed-off-by: Dmitry Torokhov

[PATCH] Correct misc_register return code handling in several drivers

2006-12-07T16:39:35+00:00

Clean up several code points in which the return code from misc_register is
not handled properly.

Several modules failed to deregister various hooks when misc_register fails,
and this patch cleans them up.  Also there are a few modules that legitimately
don't care about the failure status of misc register.  These drivers however
unilaterally call misc_deregister on module unload.

Since misc_register doesn't initialize the list_head in the init_routine if it
fails, the deregister operation is at risk for oopsing when list_del is
called.  The initial solution was to manually init the list in the miscdev
structure in each of those modules, but the consensus in this thread was to
consolodate and do that universally inside misc_register.

Signed-off-by: Neil Horman 
Cc: Bjorn Helgaas 
Cc: Kylene Jo Hall 
Cc: Dmitry Torokhov 
Cc: Olaf Hering 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] hp drivers/input stuff: C99 initializers, NULL noise removal, __user annotations

2006-10-15T18:00:58+00:00

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] Use linux/io.h instead of asm/io.h

2006-10-11T18:14:23+00:00

In preparation for moving check_signature, change these users from asm/io.h
to linux/io.h

Signed-off-by: Matthew Wilcox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] m68k/HP300: Enable HIL configuration options

2006-10-09T21:54:45+00:00

Enable HIL configuration options on HP300

Signed-off-by: Kars de Jong 
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Linus Torvalds

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05T14:10:12+00:00

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells 
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

Input: wistron - add support for Acer TravelMate 2424NWXCi

2006-10-02T02:07:14+00:00

The key mappings are the same as the older Acer TravelMate 240.

Signed-off-by: Ashutosh Naik 
Signed-off-by: Andrew Morton 
Signed-off-by: Dmitry Torokhov

Input: wistron - fix setting up special buttons

2006-10-02T01:58:51+00:00

If either wifi or bluetooth button has been detected, the code
would break off the loop. But there are laptops that have both
types of buttons, so the loop has to continue checking.

Signed-off-by: Reiner Herrmann 
Signed-off-by: Dmitry Torokhov