drm/nvd9/therm: handle another kind of PWM fan

Signed-off-by: Martin Peres <martin.peres@free.fr>
Tested-by: SaveTheRobots <john.rowley08@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c

@@ -40,6 +40,7 @@ pwm_info(struct nouveau_therm *therm, int line)
 		case 0x00: return 2;
 		case 0x19: return 1;
 		case 0x1c: return 0;
+		case 0x1e: return 2;
 		default:
 			break;
 		}