1*2eb4d8dcSEmmanuel Vadot# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*2eb4d8dcSEmmanuel Vadot# Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. 3*2eb4d8dcSEmmanuel Vadot 4*2eb4d8dcSEmmanuel Vadot%YAML 1.2 5*2eb4d8dcSEmmanuel Vadot--- 6*2eb4d8dcSEmmanuel Vadot$id: http://devicetree.org/schemas/net/wireless/ieee80211.yaml# 7*2eb4d8dcSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 8*2eb4d8dcSEmmanuel Vadot 9*2eb4d8dcSEmmanuel Vadottitle: Common IEEE 802.11 Binding 10*2eb4d8dcSEmmanuel Vadot 11*2eb4d8dcSEmmanuel Vadotmaintainers: 12*2eb4d8dcSEmmanuel Vadot - Lorenzo Bianconi <lorenzo@kernel.org> 13*2eb4d8dcSEmmanuel Vadot 14*2eb4d8dcSEmmanuel Vadotdescription: | 15*2eb4d8dcSEmmanuel Vadot This provides documentation of common properties that are valid for 16*2eb4d8dcSEmmanuel Vadot all wireless devices 17*2eb4d8dcSEmmanuel Vadot 18*2eb4d8dcSEmmanuel Vadotproperties: 19*2eb4d8dcSEmmanuel Vadot ieee80211-freq-limit: 20*2eb4d8dcSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32-matrix 21*2eb4d8dcSEmmanuel Vadot items: 22*2eb4d8dcSEmmanuel Vadot minItems: 2 23*2eb4d8dcSEmmanuel Vadot maxItems: 2 24*2eb4d8dcSEmmanuel Vadot description: 25*2eb4d8dcSEmmanuel Vadot List of supported frequency ranges in KHz. This can be used for devices 26*2eb4d8dcSEmmanuel Vadot that in a given config support less channels than normally. It may happen 27*2eb4d8dcSEmmanuel Vadot chipset supports a wide wireless band but it is limited to some part of 28*2eb4d8dcSEmmanuel Vadot it due to used antennas or power amplifier. An example case for this 29*2eb4d8dcSEmmanuel Vadot can be tri-band wireless router with two identical chipsets used for two 30*2eb4d8dcSEmmanuel Vadot different 5 GHz subbands. Using them incorrectly could not work or 31*2eb4d8dcSEmmanuel Vadot decrease performance noticeably 32*2eb4d8dcSEmmanuel Vadot 33*2eb4d8dcSEmmanuel VadotadditionalProperties: true 34*2eb4d8dcSEmmanuel Vadot 35*2eb4d8dcSEmmanuel Vadotexamples: 36*2eb4d8dcSEmmanuel Vadot - | 37*2eb4d8dcSEmmanuel Vadot pcie0 { 38*2eb4d8dcSEmmanuel Vadot #address-cells = <3>; 39*2eb4d8dcSEmmanuel Vadot #size-cells = <2>; 40*2eb4d8dcSEmmanuel Vadot wifi@0,0 { 41*2eb4d8dcSEmmanuel Vadot reg = <0x0000 0 0 0 0>; 42*2eb4d8dcSEmmanuel Vadot ieee80211-freq-limit = <2402000 2482000>, 43*2eb4d8dcSEmmanuel Vadot <5170000 5250000>; 44*2eb4d8dcSEmmanuel Vadot }; 45*2eb4d8dcSEmmanuel Vadot }; 46