u-boot-brain/arch/x86/include/asm/acpi/dptf/fan.asl
Simon Glass 13539ba705 x86: acpi: Add DPTF asl files
Add common DPTF (Intel Dynamic Performance and Thermal Framework) files,
taken from coreboot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25 11:27:12 +08:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2016 Intel Corporation.
*/
Device (TFN1)
{
Name (_HID, "INT3404")
Name (_UID, 0)
Name (_STR, Unicode("Fan Control"))
/* _FIF: Fan Information */
Name (_FIF, Package ()
{
0, // Revision
1, // Fine Grained Control
2, // Step Size
0 // No Low Speed Notification
})
/* Return Fan Performance States defined by mainboard */
Method (_FPS)
{
Return (\_SB.DFPS)
}
Name (TFST, Package ()
{
0, // Revision
0x00, // Control
0x00 // Speed
})
/* _FST: Fan current Status */
Method (_FST, 0, Serialized,,PkgObj)
{
/* Fill in TFST with current control. */
Store (\_SB.PCI0.LPCB.EC0.FAND, Index (TFST, 1))
Return (TFST)
}
/* _FSL: Fan Speed Level */
Method (_FSL, 1, Serialized)
{
Store (Arg0, \_SB.PCI0.LPCB.EC0.FAND)
}
Method (_STA)
{
If (LEqual (\DPTE, One))
{
Return (0xF)
} Else {
Return (0x0)
}
}
}