[V2,2/3] dt-bindings: document common IEEE 802.11 frequency limit property

Commit Message

Rafał Miłecki Jan. 2, 2017, 1:27 p.m. UTC

From: Rafał Miłecki <[e-mail]>

This new file should be used for properties that apply to all wireless
devices.

Signed-off-by: Rafał Miłecki <[e-mail]>
---
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.
---
 .../devicetree/bindings/net/wireless/ieee80211.txt     | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/wireless/ieee80211.txt

Comments

Johannes Berg Jan. 2, 2017, 1:49 p.m. UTC | #1

> +pcie@0,0 {
> +	reg = <0x0000 0 0 0 0>;
> +	wifi@0,0 {
> +		reg = <0x0000 0 0 0 0>;
> +		ieee80211-freq-limit = <2402000 2432000>,
> +				       <2432000 2462000>;
> +	};
> +};

Syntactically, that might be a good example, but semantically it
doesn't really make sense to have those ranges that have a common
endpoint?

johannes

Patch

diff --git a/Documentation/devicetree/bindings/net/wireless/ieee80211.txt b/Documentation/devicetree/bindings/net/wireless/ieee80211.txt
new file mode 100644
index 0000000..658c721
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/ieee80211.txt
@@ -0,0 +1,18 @@ 
+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
+
+Example:
+
+pcie@0,0 {
+	reg = <0x0000 0 0 0 0>;
+	wifi@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		ieee80211-freq-limit = <2402000 2432000>,
+				       <2432000 2462000>;
+	};
+};