1. 10 2月, 2008 1 次提交
  2. 07 2月, 2008 1 次提交
    • D
      atmel_lcdfb: backlight control · a9a84c37
      David Brownell 提交于
      On the sam9 EK boards, the LCD backlight is hooked up to a PWM output from
      the LCD controller.  It's controlled by "contrast" registers though.
      
      This patch lets boards declare that they have that kind of backlight
      control.  The driver can then export this control, letting screenblank and
      other operations actually take effect ...  reducing the typically
      substantial power drain from the backlight.
      
      Note that it's not fully cooked
        - doesn't force backlight off during system suspend
        - the "power" and "blank" events may not be done right
      This should be easily added in the future.
      
      [nicolas.ferre@atmel.com: remove unneeded inline and rename functions]
      Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
      Cc: Andrew Victor <linux@maxim.org.za>
      Cc: Russell King <rmk@arm.linux.org.uk>
      Cc: "Antonino A. Daplas" <adaplas@pol.net>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      a9a84c37
  3. 04 2月, 2008 3 次提交
  4. 02 2月, 2008 1 次提交
    • R
      Suspend: Introduce begin() and end() callbacks · c697eece
      Rafael J. Wysocki 提交于
      On ACPI systems the target state set by acpi_pm_set_target() is
      reset by acpi_pm_finish(), but that need not be called if the
      suspend fails.  All platforms that use the .set_target() global
      suspend callback are affected by analogous issues.
      
      For this reason, we need an additional global suspend callback that
      will reset the target state regardless of whether or not the suspend
      is successful.  Also, it is reasonable to rename the .set_target()
      callback, since it will be used for a different purpose on ACPI
      systems (due to ACPI 1.0x code ordering requirements).
      
      Introduce the global suspend callback .end() to be executed at the
      end of the suspend sequence and rename the .set_target() global
      suspend callback to .begin().
      Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
      Signed-off-by: NLen Brown <len.brown@intel.com>
      c697eece
  5. 28 1月, 2008 1 次提交
  6. 26 1月, 2008 20 次提交
  7. 07 1月, 2008 1 次提交
  8. 27 11月, 2007 3 次提交
  9. 20 10月, 2007 1 次提交
  10. 19 10月, 2007 2 次提交
  11. 13 10月, 2007 6 次提交