[PATCH 1/2] dt-bindings: tegra: pmc: Update aotag as an optional aperture

Jon Hunter
2025-11-14T16:17:59Z

Not all Tegra SoCs or all versions of a particular Tegra SoC may include
the AOTAG aperture. This change makes "aotag" as an optional aperture for
Tegra234 and Tegra264.

Co-developed-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
Admittedly I don't know if there is a better way to handle this,
but if there is please let me know!

.../arm/tegra/nvidia,tegra186-pmc.yaml | 57 ++++++++++++-------
1 file changed, 38 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
index be70819020c5..defd9000eed2 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
@@ -19,17 +19,12 @@ properties:
- nvidia,tegra264-pmc

reg:
- minItems: 4
+ minItems: 3
maxItems: 5

reg-names:
- minItems: 4
- items:
- - const: pmc
- - const: wake
- - const: aotag
- - enum: [ scratch, misc ]
- - const: misc
+ minItems: 3
+ maxItems: 5

interrupt-controller: true

@@ -50,12 +45,12 @@ allOf:
const: nvidia,tegra186-pmc
then:
properties:
- reg:
- maxItems: 4
reg-names:
- maxItems: 4
- contains:
- const: scratch
+ items:
+ - const: pmc
+ - const: wake
+ - const: aotag
+ - const: scratch

- if:
properties:
@@ -64,21 +59,45 @@ allOf:
const: nvidia,tegra194-pmc
then:
properties:
- reg:
- minItems: 5
reg-names:
- minItems: 5
+ items:
+ - const: pmc
+ - const: wake
+ - const: aotag
+ - const: scratch
+ - const: misc

- if:
properties:
compatible:
contains:
- const: nvidia,tegra234-pmc
+ enum:
+ - nvidia,tegra234-pmc
+ - nvidia,tegra264-pmc
then:
properties:
reg-names:
- contains:
- const: misc
+ oneOf:
+ - items:
+ - const: pmc
+ - const: wake
+ - const: aotag
+ - const: scratch
+ - const: misc
+ - items:
+ - const: pmc
+ - const: wake
+ - const: aotag
+ - const: misc
+ - items:
+ - const: pmc
+ - const: wake
+ - const: scratch
+ - const: misc
+ - items:
+ - const: pmc
+ - const: wake
+ - const: misc

patternProperties:
"^[a-z0-9]+-[a-z0-9]+$":
--
2.43.0