[PATCH V6 1/3] dt-bindings: document common IEEE 802.11 frequency limit property
DORMANTno replies
From: Rafał Miłecki <hidden>
Date: 2017-01-04 17:58:29
Also in:
linux-wireless
Subsystem:
networking drivers (wireless), open firmware and flattened device tree bindings, the rest · Maintainers:
Johannes Berg, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Rafał Miłecki <redacted>
This new file should be used for properties that apply to all wireless
devices.
Signed-off-by: Rafał Miłecki <redacted>
---
V2: Switch to a single ieee80211-freq-limit property that allows specifying
*multiple* ranges. This resolves problem with more complex rules as pointed
by Felx.
Make description implementation agnostic as pointed by Arend.
Rename node to wifi as suggested by Martin.
V3: Use more real-life frequencies in the example.
V5: Describe hardware design as possible use for this property
V6: Even better property description, thanks Rob for your help!
---
.../devicetree/bindings/net/wireless/ieee80211.txt | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/wireless/ieee80211.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/ieee80211.txt b/Documentation/devicetree/bindings/net/wireless/ieee80211.txt
new file mode 100644
index 0000000..f6442b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/ieee80211.txt@@ -0,0 +1,24 @@ +Common IEEE 802.11 properties + +This provides documentation of common properties that are valid for all wireless +devices. + +Optional properties: + - ieee80211-freq-limit : list of supported frequency ranges in KHz. This can be + used for devices that in a given config support less channels than + normally. It may happen chipset supports a wide wireless band but it is + limited to some part of it due to used antennas or power amplifier. + An example case for this can be tri-band wireless router with two + identical chipsets used for two different 5 GHz subbands. Using them + incorrectly could not work or decrease performance noticeably. + +Example: + +pcie@0,0 { + reg = <0x0000 0 0 0 0>; + wifi@0,0 { + reg = <0x0000 0 0 0 0>; + ieee80211-freq-limit = <2402000 2482000>, + <5170000 5250000>; + }; +};
--
2.10.1
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