eeepc-laptop: support for super hybrid engine (SHE)
authorGrigori Goronzy <greg@chown.ath.cx>
Mon, 27 Apr 2009 07:23:40 +0000 (09:23 +0200)
committerLen Brown <len.brown@intel.com>
Thu, 14 May 2009 15:23:40 +0000 (11:23 -0400)
The older eeepc-acpi driver allowed to control the SHE performance
preset through a ACPI function for just this purpose. SHE underclocks
and undervolts the FSB and undervolts the CPU (at preset 2,
"powersave"), or slightly overclocks the CPU (at preset 0,
"performance"). Preset 1 is the default setting with default clocks and
voltage.

The new eeepc-laptop driver doesn't support it anymore.
The attached patch adds support for it to eeepc-laptop. It's very
straight-forward and almost trivial.

Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/platform/x86/eeepc-laptop.c

index 57f21f0a565590f8c9dda2d8f5fcc0222efd2e50..7aaf5879f666ef6e218b63273c7b6363e9027cc3 100644 (file)
@@ -384,11 +384,13 @@ static ssize_t show_sys_acpi(int cm, char *buf)
 EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA);
 EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER);
 EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH);
+EEEPC_CREATE_DEVICE_ATTR(cpufv, CM_ASL_CPUFV);
 
 static struct attribute *platform_attributes[] = {
        &dev_attr_camera.attr,
        &dev_attr_cardr.attr,
        &dev_attr_disp.attr,
+       &dev_attr_cpufv.attr,
        NULL
 };