hwmon: (hwmon-vid) Add 6-bit vid codes for AMD NPT 0Fh cpus (116d0486) · Commits · 戴 / test

drivers/hwmon/hwmon-vid.c

+8 −10

Original line number	Diff line number	Diff line
		@@ -37,18 +37,14 @@
		* For VRD 10.0 and up, "VRD x.y Design Guide",
		* available at http://developer.intel.com/.
		*
		* AMD NPT 0Fh (Athlon64 & Opteron), AMD Publication 32559,
		* http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32559.pdf
		* Table 71. VID Code Voltages
		* AMD Opteron processors don't follow the Intel specifications.
		* I'm going to "make up" 2.4 as the spec number for the Opterons.
		* No good reason just a mnemonic for the 24x Opteron processor
		* series.
		*
		* Opteron VID encoding is:
		* 00000 = 1.550 V
		* 00001 = 1.525 V
		* . . . .
		* 11110 = 0.800 V
		* 11111 = 0.000 V (off)
		*
		* The 17 specification is in fact Intel Mobile Voltage Positioning -
		* (IMVP-II). You can find more information in the datasheet of Max1718
		* http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2452
		@@ -98,9 +94,11 @@ int vid_from_reg(int val, u8 vrm)
		if (val < 0x02 \|\| val > 0xb2)
		return 0;
		return((1600000 - (val - 2) * 6250 + 500) / 1000);
		case 24: /* Opteron processor */
		val &= 0x1f;
		return(val == 0x1f ? 0 : 1550 - val * 25);

		case 24: /* AMD NPT 0Fh (Athlon64 & Opteron) */
		val &= 0x3f;
		return (val < 32) ? 1550 - 25 * val
		: 775 - (25 * (val - 31)) / 2;

		case 91: /* VRM 9.1 */
		case 90: /* VRM 9.0 */