Commit 4dc33b12 authored Apr 23, 2017 by Karol Herbst Committed by Ben Skeggs Jun 16, 2017

drm/nouveau/bios/iccsense: rails for power sensors have a mask of 0xf8 for version 0x10



I only saw those values inside the vbios: 0xff, 0xfd, 0xfc, 0xfa for valid
rails.

No idea what the lower value does, but at least we get power readings on
a lot of Fermi GPUs with that.

v2: add missing parentheses

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

parent c0cd0470

drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -87,7 +87,10 @@ nvbios_iccsense_parse(struct nvkm_bios bios, struct nvbios_iccsense iccsense)

		switch(ver) {
		case 0x10:
		rail->mode = nvbios_rd08(bios, entry + 0x1);
		if ((nvbios_rd08(bios, entry + 0x1) & 0xf8) == 0xf8)
		rail->mode = 1;
		else
		rail->mode = 0;
		rail->extdev_id = nvbios_rd08(bios, entry + 0x2);
		res_start = 0x3;
		break;