[v2,1/2] dt-bindings: mt76: support setting per-band MAC address

Message ID 6e9cfac5758dd06429fadf6c1c70c569c86f3a95.1690512516.git.daniel@makrotopia.org
State New
Headers
Series [v2,1/2] dt-bindings: mt76: support setting per-band MAC address |

Commit Message

Daniel Golle July 28, 2023, 2:50 a.m. UTC
  Introduce support for setting individual per-band MAC addresses using
NVMEM cells by adding a 'bands' object with enumerated child nodes
representing the 2.4 GHz, 5 GHz and 6 GHz bands.

In case it is defined, call of_get_mac_address for the per-band child
node, otherwise try with of_get_mac_address on the main device node and
fall back to a random address like it used to be.

While at it, add MAC address related properties also for the main node
and update example to use EEPROM via nvmem-cells instead of deprecated
mediatek,mtd-eeprom property.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 .../bindings/net/wireless/mediatek,mt76.yaml  | 59 ++++++++++++++++++-
 1 file changed, 58 insertions(+), 1 deletion(-)
  

Comments

Conor Dooley July 29, 2023, 10:10 a.m. UTC | #1
On Fri, Jul 28, 2023 at 03:50:47AM +0100, Daniel Golle wrote:
> Introduce support for setting individual per-band MAC addresses using
> NVMEM cells by adding a 'bands' object with enumerated child nodes
> representing the 2.4 GHz, 5 GHz and 6 GHz bands.
> 
> In case it is defined, call of_get_mac_address for the per-band child
> node, otherwise try with of_get_mac_address on the main device node and
> fall back to a random address like it used to be.
> 
> While at it, add MAC address related properties also for the main node
> and update example to use EEPROM via nvmem-cells instead of deprecated
> mediatek,mtd-eeprom property.

Could you mark that deprecated then please?

> +patternProperties:
> +  '^band@[0-2]+$':
> +    type: object
> +    additionalProperties: false
> +    properties:
> +      reg:
> +        maxItems: 1
> +
> +      address: true
> +      local-mac-address: true
> +      mac-address: true
> +
> +      nvmem-cells:
> +        description: NVMEM cell with the MAC address
> +
> +      nvmem-cell-names:
> +        items:
> +          - const: mac-address

You should not need the items list if you only have one item.

0
  

Patch

diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
index 252207adbc54c..2474f4f7e34b0 100644
--- a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
@@ -37,6 +37,12 @@  properties:
     description:
       MT7986 should contain 3 regions consys, dcm, and sku, in this order.
 
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
   interrupts:
     maxItems: 1
 
@@ -72,13 +78,23 @@  properties:
 
   ieee80211-freq-limit: true
 
+  address: true
+
+  local-mac-address: true
+
+  mac-address: true
+
   nvmem-cells:
+    minItems: 1
     items:
       - description: NVMEM cell with EEPROM
+      - description: NVMEM cell with the MAC address
 
   nvmem-cell-names:
+    minItems: 1
     items:
       - const: eeprom
+      - const: mac-address
 
   mediatek,eeprom-data:
     $ref: /schemas/types.yaml#/definitions/uint32-array
@@ -213,6 +229,30 @@  properties:
                     description:
                       Half-dBm power delta for different numbers of antennas
 
+patternProperties:
+  '^band@[0-2]+$':
+    type: object
+    additionalProperties: false
+    properties:
+      reg:
+        maxItems: 1
+
+      address: true
+      local-mac-address: true
+      mac-address: true
+
+      nvmem-cells:
+        description: NVMEM cell with the MAC address
+
+      nvmem-cell-names:
+        items:
+          - const: mac-address
+
+    required:
+      - reg
+
+    unevaluatedProperties: false
+
 required:
   - compatible
   - reg
@@ -225,10 +265,13 @@  examples:
       #address-cells = <3>;
       #size-cells = <2>;
       wifi@0,0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
         compatible = "mediatek,mt76";
         reg = <0x0000 0 0 0 0>;
         ieee80211-freq-limit = <5000000 6000000>;
-        mediatek,mtd-eeprom = <&factory 0x8000>;
+        nvmem-cells = <&factory_eeprom>;
+        nvmem-cell-names = "eeprom";
         big-endian;
 
         led {
@@ -257,6 +300,20 @@  examples:
              };
           };
         };
+
+        band@0 {
+          /* 2.4 GHz */
+          reg = <0>;
+          nvmem-cells = <&macaddr 0x4>;
+          nvmem-cell-names = "mac-address";
+        };
+
+        band@1 {
+          /* 5 GHz */
+          reg = <1>;
+          nvmem-cells = <&macaddr 0xa>;
+          nvmem-cell-names = "mac-address";
+        };
       };
     };