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sony-laptop: do not scribble keyboard backlight registers on resume

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Follow-up to commit 294d31e822 ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume.  Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers.  This fix is also
required in 3.12

Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mattia Dongili 2013-11-26 07:43:50 +09:00 committed by Linus Torvalds
parent 8e45099e02
commit b975dc3689
1 changed files with 0 additions and 27 deletions
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27
drivers/platform/x86/sony-laptop.c
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@ -140,7 +140,6 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
"on the model (default: no change from current value)");
#ifdef CONFIG_PM_SLEEP
static void sony_nc_kbd_backlight_resume(void);
static void sony_nc_thermal_resume(void);
#endif
static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
@ -1487,13 +1486,6 @@ static void sony_nc_function_resume(void)
case 0x0135:
sony_nc_rfkill_update();
break;
case 0x0137:
case 0x0143:
case 0x014b:
case 0x014c:
case 0x0163:
sony_nc_kbd_backlight_resume();
break;
default:
continue;
}
@ -1899,25 +1891,6 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
}
}
#ifdef CONFIG_PM_SLEEP
static void sony_nc_kbd_backlight_resume(void)
{
int ignore = 0;
if (!kbdbl_ctl)
return;
if (kbdbl_ctl->mode == 0)
sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base,
&ignore);
if (kbdbl_ctl->timeout != 0)
sony_call_snc_handle(kbdbl_ctl->handle,
(kbdbl_ctl->base + 0x200) |
(kbdbl_ctl->timeout << 0x10), &ignore);
}
#endif
struct battery_care_control {
struct device_attribute attrs[2];
unsigned int handle;