drm/nouveau: use static vidshift of 2 on volt 0x30 tables (475feffa) · Commits · 戴 / test

drivers/gpu/drm/nouveau/nouveau_volt.c

+9 −1

Original line number	Diff line number	Diff line
		@@ -159,8 +159,16 @@ nouveau_volt_init(struct drm_device *dev)
		headerlen = volt[1];
		recordlen = volt[2];
		entries = volt[3];
		vidshift = hweight8(volt[5]);
		vidmask = volt[4];
		/* no longer certain what volt[5] is, if it's related to
		* the vid shift then it's definitely not a function of
		* how many bits are set.
		*
		* after looking at a number of nva3+ vbios images, they
		* all seem likely to have a static shift of 2.. lets
		* go with that for now until proven otherwise.
		*/
		vidshift = 2;
		break;
		default:
		NV_WARN(dev, "voltage table 0x%02x unknown\n", volt[0]);