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//usr/src/linux-headers-5.10.108-0510108/include/linux/hwmon-vid.h
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* hwmon-vid.h - VID/VRM/VRD voltage conversions Originally part of lm_sensors Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> With assistance from Trent Piepho <xyzzy@speakeasy.org> */ #ifndef _LINUX_HWMON_VID_H #define _LINUX_HWMON_VID_H int vid_from_reg(int val, u8 vrm); u8 vid_which_vrm(void); /* vrm is the VRM/VRD document version multiplied by 10. val is in mV to avoid floating point in the kernel. Returned value is the 4-, 5- or 6-bit VID code. Note that only VRM 9.x is supported for now. */ static inline int vid_to_reg(int val, u8 vrm) { switch (vrm) { case 91: /* VRM 9.1 */ case 90: /* VRM 9.0 */ return ((val >= 1100) && (val <= 1850) ? ((18499 - val * 10) / 25 + 5) / 10 : -1); default: return -EINVAL; } } #endif /* _LINUX_HWMON_VID_H */