From 4e00c62b9bd7b9397ef7babb49cbf7d98eb78165 Mon Sep 17 00:00:00 2001
From: Petlozu Pravareshwar <petlozup@nvidia.com>
Date: Sun, 11 Feb 2024 17:17:26 +0000
Subject: [PATCH 1/2] dt-bindings: tegra: pmc: Update scratch as an optional
 aperture

Scratch address space register is used to store reboot reason. For
some Tegra234 systems, the scratch space is not available to store
the reboot reason. This is because scratch region on these systems
is not accessible by the kernel as restricted by the Hypervisor.
Such systems would delist scratch aperture from PMC DT node.

Accordingly, this change makes "scratch" as an optional aperture for
Tegra234 in PMC dt-binding document.

Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../arm/tegra/nvidia,tegra186-pmc.yaml        | 54 ++++++++++++-------
 1 file changed, 36 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
index 0faa403f68c8..ea4fbf655220 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml
@@ -27,7 +27,7 @@ properties:
       - const: pmc
       - const: wake
       - const: aotag
-      - const: scratch
+      - enum: [ scratch, misc ]
       - const: misc
 
   interrupt-controller: true
@@ -41,25 +41,43 @@ properties:
     description: If present, inverts the PMU interrupt signal.
     $ref: /schemas/types.yaml#/definitions/flag
 
-if:
-  properties:
-    compatible:
-      contains:
-        const: nvidia,tegra186-pmc
-then:
-  properties:
-    reg:
-      maxItems: 4
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra186-pmc
+    then:
+      properties:
+        reg:
+          maxItems: 4
+        reg-names:
+          maxItems: 4
+          contains:
+            const: scratch
 
-    reg-names:
-      maxItems: 4
-else:
-  properties:
-    reg:
-      minItems: 5
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra194-pmc
+    then:
+      properties:
+        reg:
+          minItems: 5
+        reg-names:
+          minItems: 5
 
-    reg-names:
-      minItems: 5
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra234-pmc
+    then:
+      properties:
+        reg-names:
+          contains:
+            const: misc
 
 patternProperties:
   "^[a-z0-9]+-[a-z0-9]+$":

From a82242d802c7cea66aa6630707c60a456657d1c2 Mon Sep 17 00:00:00 2001
From: Maxim Schwalm <maxim.schwalm@gmail.com>
Date: Wed, 14 Feb 2024 11:11:59 +0200
Subject: [PATCH 2/2] dt-bindings: arm: tegra: Add LG Optimus Vu P895 and
 Optimus 4X P880

Add a compatible for the LG Optimus Vu P895 and Optimus 4X P880.

Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 Documentation/devicetree/bindings/arm/tegra.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index fcf956406168..8fb4923517d0 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -64,6 +64,14 @@ properties:
       - items:
           - const: asus,tf700t
           - const: nvidia,tegra30
+      - description: LG Optimus 4X P880
+        items:
+          - const: lg,p880
+          - const: nvidia,tegra30
+      - description: LG Optimus Vu P895
+        items:
+          - const: lg,p895
+          - const: nvidia,tegra30
       - items:
           - const: toradex,apalis_t30-eval
           - const: toradex,apalis_t30