[PATCH v3 2/2] dt-bindings: net: wireless: mt76: clarify backoff limit format

Ryder Lee ryder.lee at mediatek.com
Tue Feb 10 10:08:56 PST 2026


Clarify the format of path backoff limit properties in mt76 binding.
Add explicit documentation for connac2 (mt7915, mt7981, mt7986) and
connac3 (mt7990, mt7992, mt7996...) devices, including the difference
in beamforming and non-beamforming entries.

Also reformat the description to make is more precise.

Signed-off-by: Allen Ye <allen.ye at mediatek.com>
Co-developed-by: Allen Ye <allen.ye at mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
---
 .../bindings/net/wireless/mediatek,mt76.yaml  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
index ae6b97cdc..4156e1c97 100644
--- a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
@@ -252,6 +252,16 @@ properties:
                       followed by 10 power limit values. The order of the
                       channel resource unit settings is RU26, RU52, RU106,
                       RU242/SU20, RU484/SU40, RU996/SU80 and RU2x996/SU160.
+                      - For connac2
+                        - Beamforming entries for BW20~BW160 and OFDM do not
+                          include 1T1ss.
+                        - When 1T1ss is not used, it should be filled with 0.
+                      - For connac3
+                        - Beamforming entries for BW20~BW160 and RU include
+                          1T1ss, but OFDM does not include 1T1ss.
+                        - 1T1ss is taken into account, so no need to fill with 0.
+                      Non-beamforming and RU entries for both connac2 and
+                      connac3 include 1T1ss.
                     minItems: 1
                     maxItems: 7
                     items:
@@ -270,6 +280,16 @@ properties:
                       followed by 10 power limit values. The order of the
                       channel resource unit settings is RU26, RU52, RU106,
                       RU242/SU20, RU484/SU40, RU996/SU80 and RU2x996/SU160.
+                      - For connac2
+                        - Beamforming entries for BW20~BW160 and OFDM do not
+                          include 1T1ss.
+                        - When 1T1ss is not used, it should be filled with 0.
+                      - For connac3
+                        - Beamforming entries for BW20~BW160 and RU include
+                          1T1ss, but OFDM does not include 1T1ss.
+                        - 1T1ss is taken into account, so no need to fill with 0.
+                      Non-beamforming and RU entries for both connac2 and
+                      connac3 include 1T1ss.
                     minItems: 1
                     maxItems: 7
                     items:
-- 
2.45.2




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