[PATCH] dt-bindings: net: wireless: marvell,sd8787: Relax length constraints

[PATCH] dt-bindings: net: wireless: marvell,sd8787: Relax length constraints

[Fabio Estevam]

Commit 31ed9d9d71ec ("ARM: dts: rockchip: Limit WiFi TX power on
rk3288-veyron-jerry") added calibration data for the rk3288-veyron-jerry
platform. The commit message explicitly notes that "the length can vary
between hw versions", as documented in the original text binding.

The current YAML schema enforces fixed maximum lengths for calibration
data arrays, which causes dtbs_check warnings for rk3288-veyron-jerry.dts.

Relax the constraints for the two properties that have
variable-length data in this platform by adding minItems based on the
actual data used in the downstream kernel:

- marvell,caldata-txpwrlimit-2g: 508 bytes (from rk3288-veyron-jerry.dts)
- marvell,caldata-txpwrlimit-5g-sub2: 744 bytes (from 
rk3288-veyron-jerry.dts)

The original maxItems values are preserved as upper bounds to maintain
validation for other platforms while accommodating this specific
hardware variant.

Fixes: 25f855413885 ("dt-bindings: net: wireless: convert marvel-8xxx.txt to yaml format")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
 .../devicetree/bindings/net/wireless/marvell,sd8787.yaml        | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/marvell,sd8787.yaml b/Documentation/devicetree/bindings/net/wireless/marvell,sd8787.yaml
index 930b700b73d0..0d5b4274f151 100644
--- a/Documentation/devicetree/bindings/net/wireless/marvell,sd8787.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/marvell,sd8787.yaml
@@ -37,6 +37,7 @@ properties:
   marvell,caldata-txpwrlimit-2g:
     $ref: /schemas/types.yaml#/definitions/uint8-array
     description: Calibration data for the 2GHz band.
+    minItems: 508
     maxItems: 566
 
   marvell,caldata-txpwrlimit-5g-sub0:
@@ -52,6 +53,7 @@ properties:
   marvell,caldata-txpwrlimit-5g-sub2:
     $ref: /schemas/types.yaml#/definitions/uint8-array
     description: Calibration data for sub-band 2 in the 5GHz band.
+    minItems: 316
     maxItems: 750
 
   marvell,caldata-txpwrlimit-5g-sub3:
-- 
2.43.0

Re: [PATCH] dt-bindings: net: wireless: marvell,sd8787: Relax length constraints

[Rob Herring (Arm)]

On Wed, 11 Mar 2026 16:45:31 -0300, Fabio Estevam wrote:
> Commit 31ed9d9d71ec ("ARM: dts: rockchip: Limit WiFi TX power on
> rk3288-veyron-jerry") added calibration data for the rk3288-veyron-jerry
> platform. The commit message explicitly notes that "the length can vary
> between hw versions", as documented in the original text binding.
> 
> The current YAML schema enforces fixed maximum lengths for calibration
> data arrays, which causes dtbs_check warnings for rk3288-veyron-jerry.dts.
> 
> Relax the constraints for the two properties that have
> variable-length data in this platform by adding minItems based on the
> actual data used in the downstream kernel:
> 
> - marvell,caldata-txpwrlimit-2g: 508 bytes (from rk3288-veyron-jerry.dts)
> - marvell,caldata-txpwrlimit-5g-sub2: 744 bytes (from
> rk3288-veyron-jerry.dts)
> 
> The original maxItems values are preserved as upper bounds to maintain
> validation for other platforms while accommodating this specific
> hardware variant.
> 
> Fixes: 25f855413885 ("dt-bindings: net: wireless: convert marvel-8xxx.txt to yaml format")
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
>  .../devicetree/bindings/net/wireless/marvell,sd8787.yaml        | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh@kernel.org>