Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Lorenzo Bianconi <lorenzo@kernel.org>
To:     nbd@nbd.name
Cc:     linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com,
        sean.wang@mediatek.com, ryder.lee@mediatek.com,
        shayne.chen@mediatek.com, devicetree@vger.kernel.org,
        robh@kernel.org
Subject: [PATCH 2/8] dt-bindings:net:wireless:mediatek,mt76: introduce power-limits node
Date:   Mon,  5 Apr 2021 14:40:26 +0200
Message-Id: <eb6998d12c7f60a28c7f3eab455d4339656f76e2.1617625912.git.lorenzo@kernel.org>
In-Reply-To: <cover.1617625912.git.lorenzo@kernel.org>
References: <cover.1617625912.git.lorenzo@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Introduce power-limits node in mt76 binding in order to specify
per-rate power limit values for each 802.11n/802.11ac rate

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 .../bindings/net/wireless/mediatek,mt76.yaml  | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
index d6f835d17d66..6ede331e3e52 100644
--- a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
@@ -72,6 +72,62 @@ properties:
       led-sources:
         maxItems: 1
 
+  power-limits:
+    type: object
+    properties:
+      regdomain: true
+
+    patternProperties:
+      "^r[0-9]+":
+        type: object
+        patternProperties:
+          "^txpower-[256]g$":
+            type: object
+            patternProperties:
+              "^b[0-9]+$":
+                type: object
+                properties:
+                  channels:
+                    $ref: /schemas/types.yaml#/definitions/uint32-array
+                    minItems: 2
+                    maxItems: 2
+                    description:
+                      Pairs of first and last channel number of the selected
+                      band
+
+                  cck:
+                    $ref: /schemas/types.yaml#/definitions/uint32-array
+                    minItems: 4
+                    maxItems: 4
+                    description:
+                      4 half-dBm per-rate power limit values
+
+                  mcs:
+                    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+                    description:
+                      Sets of per-rate power limit values for 802.11n/802.11ac
+                      rates for multiple channel bandwidth settings.
+                      Each set starts with the number of channel bandwidth
+                      settings for which the rate set applies, followed by
+                      either 8 or 10 power limit values. The order of the
+                      channel bandwidth settings is 20, 40, 80 and 160 MHz.
+
+                  ru:
+                    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+                    description:
+                      Sets of per-rate power limit values for 802.11ax rates
+                      for multiple channel bandwidth or resource unit settings.
+                      Each set starts with the number of channel bandwidth or
+                      resource unit settings for which the rate set applies,
+                      followed by 12 power limit values. The order of the
+                      channel resource unit settings is RU26, RU52, RU106,
+                      RU242/SU20, RU484/SU40, RU996/SU80 and RU2x996/SU160.
+
+                  txs-delta:
+                    $ref: /schemas/types.yaml#/definitions/uint32-array
+                    description:
+                      Half-dBm power delta for different numbers of antennas
+
 required:
   - compatible
   - reg
@@ -93,6 +149,29 @@ examples:
         led {
           led-sources = <2>;
         };
+
+        power-limits {
+          r0 {
+            txpower-5g {
+               regdomain = "FCC";
+               b0 {
+                   channels = <36 48>;
+                   ofdm = <23 23 23 23 23 23 23 23>;
+                   mcs = <1 23 23 23 23 23 23 23 23 23 23>,
+                         <3 22 22 22 22 22 22 22 22 22 22>;
+                   ru = <3 22 22 22 22 22 22 22 22 22 22 22 22>,
+                        <4 20 20 20 20 20 20 20 20 20 20 20 20>;
+               };
+               b1 {
+                   channels = <100 181>;
+                   ofdm = <14 14 14 14 14 14 14 14>;
+                   mcs = <4 14 14 14 14 14 14 14 14 14 14>;
+                   txs-delta = <12 9 6>;
+                   ru = <7 14 14 14 14 14 14 14 14 14 14 14 14>;
+               };
+             };
+          };
+        };
       };
     };
 
-- 
2.30.2