linux.git/drivers/video/chipsfb.c, branch v2.6.30

PM: Introduce PM_EVENT_HIBERNATE callback state

2008-02-23T18:40:04+00:00

During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.

But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.

For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate.  Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.

These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Tested-by: Jeff Chua 
Signed-off-by: Linus Torvalds

chipsfb: use correct pm state

2007-07-26T18:35:18+00:00

chipsfb.c shouldn't use PM_SUSPEND_MEM in there, but PM_EVENT_SUSPEND.

Cc: Cedric Le Goater 
Cc: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fix section mismatch in chipsfb

2007-06-28T18:34:54+00:00

WARNING: drivers/built-in.o(.text+0x8742a): Section mismatch: reference to .init.data:chipsfb_fix (between 'chipsfb_pci_init' and 'chipsfb_set_par')
WARNING: drivers/built-in.o(.text+0x87432): Section mismatch: reference to .init.data:chipsfb_fix (between 'chipsfb_pci_init' and 'chipsfb_set_par')
WARNING: drivers/built-in.o(.text+0x87442): Section mismatch: reference to .init.data:chipsfb_var (between 'chipsfb_pci_init' and 'chipsfb_set_par')
WARNING: drivers/built-in.o(.text+0x8744a): Section mismatch: reference to .init.data:chipsfb_var (between 'chipsfb_pci_init' and 'chipsfb_set_par')

init_chips is only called from chipsfb_pci_init
chipsfb_fix and chipsfb_var are only referenced from init_chips

Signed-off-by: Olaf Hering 
Cc: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: Separate backlight properties from backlight ops pointers

2007-02-20T09:26:53+00:00

Per device data such as brightness belongs to the indivdual device
and should therefore be separate from the the backlight operation
function pointers. This patch splits the two types of data and
allows simplifcation of some code.

Signed-off-by: Richard Purdie

backlight: Remove uneeded update_status call from chipsfb.c

2007-02-20T08:38:46+00:00

Remove uneeded update_status call from chipsfb.c since the
backlight core now receives software blanking notifications
too.

Signed-off-by: Richard Purdie

backlight: Fix external uses of backlight internal semaphore

2007-02-20T08:38:45+00:00

backlight_device->sem has a very specific use as documented in the
header file. The external users of this are using it for a different
reason, to serialise access to the update_status() method.

backlight users were supposed to implement their own internal
serialisation of update_status() if needed but everyone is doing
things differently and incorrectly. Therefore add a global mutex to
take care of serialisation for everyone, once and for all.

Locking for get_brightness remains optional since most users don't
need it.

Also update the lcd class in a similar way.

Signed-off-by: Richard Purdie

[PATCH] powermac: Combined fixes for backlight code

2006-07-10T20:24:20+00:00

This patch fixes several problems:
- pmac_backlight_key() is called under interrupt context, and therefore
  can't use mutexes or semaphores, so defer the backlight level for
  later, as it's not critical (original code by Aristeu S. Rozanski F.
  ).
- Add exports for functions that might be called from modules
- Fix Kconfig depdencies on PMAC_BACKLIGHT.
- Fix locking issues on calls from inside the driver (reported by
  Aristeu S. Rozanski F., too)
- Fix wrong calculation of backlight values in some of the drivers
- Replace pmac_backlight_key_up/down by inline functions

[akpm@osdl.org: fix function prototypes]
Signed-off-by: Michael Hanselmann 
Acked-by: Aristeu S. Rozanski F. 
Acked-by: Rene Nussbaumer 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] vt: Remove VT-specific declarations and definitions from tty.h

2006-07-10T20:24:16+00:00

MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a
function of the VT layer than the TTY one.  Moving these to vt.h and vt_kern.h
allows all of the framebuffer and VT console drivers to remove their
dependency on tty.h.

[akpm@osdl.org: fix alpha build]
Signed-off-by: Jon Smirl 
Signed-off-by: Antonino Daplas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk

[PATCH] Rewritten backlight infrastructure for portable Apple computers

2006-06-25T17:00:59+00:00

This patch contains a total rewrite of the backlight infrastructure for
portable Apple computers.  Backward compatibility is retained.  A sysfs
interface allows userland to control the brightness with more steps than
before.  Userland is allowed to upload a brightness curve for different
monitors, similar to Mac OS X.

[akpm@osdl.org: add needed exports]
Signed-off-by: Michael Hanselmann 
Acked-by: Benjamin Herrenschmidt 
Cc: Richard Purdie 
Cc: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds