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Message-ID: <20230406171837.11206-3-dipenp@nvidia.com>
Date:   Thu, 6 Apr 2023 10:18:29 -0700
From:   Dipen Patel <dipenp@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>, <linus.walleij@...aro.org>,
        <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <robh+dt@...nel.org>, <timestamp@...ts.linux.dev>,
        <krzysztof.kozlowski+dt@...aro.org>, <brgl@...ev.pl>,
        <corbet@....net>, <gregkh@...uxfoundation.org>
CC:     Dipen Patel <dipenp@...dia.com>
Subject: [V5 02/10] dt-bindings: timestamp: Add Tegra234 support

Added timestamp provider support for the Tegra234 in devicetree
bindings.

Signed-off-by: Dipen Patel <dipenp@...dia.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
v2:
- Removed nvidia,slices property
- Added nvidia,gpio-controller based on review comments from Thierry,
  this will help simplify the  hte provider driver.

v3:
- Explained changes in detail in commit message
- Added allOf section per review comment

v4:
- Logically divide the v3 patch as follows
- Created Tegra234 support patch
- Created depracate nvidia,slices property patch
- Created addition of the nvidia,gpio-controller property patch

 .../timestamp/nvidia,tegra194-hte.yaml        | 44 +++++++++++++++++--
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
index c31e207d1652..158dbe58c49f 100644
--- a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
+++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/timestamp/nvidia,tegra194-hte.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Tegra194 on chip generic hardware timestamping engine (HTE)
+title: Tegra on chip generic hardware timestamping engine (HTE) provider
 
 maintainers:
   - Dipen Patel <dipenp@...dia.com>
@@ -23,6 +23,8 @@ properties:
     enum:
       - nvidia,tegra194-gte-aon
       - nvidia,tegra194-gte-lic
+      - nvidia,tegra234-gte-aon
+      - nvidia,tegra234-gte-lic
 
   reg:
     maxItems: 1
@@ -43,9 +45,8 @@ properties:
     description:
       HTE lines are arranged in 32 bit slice where each bit represents different
       line/signal that it can enable/configure for the timestamp. It is u32
-      property and depends on the HTE instance in the chip. The value 3 is for
-      GPIO GTE and 11 for IRQ GTE.
-    enum: [3, 11]
+      property and the value depends on the HTE instance in the chip.
+    enum: [3, 11, 17]
 
   '#timestamp-cells':
     description:
@@ -55,6 +56,41 @@ properties:
       mentioned in the nvidia GPIO device tree binding document.
     const: 1
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra194-gte-aon
+              - nvidia,tegra234-gte-aon
+    then:
+      properties:
+        nvidia,slices:
+          const: 3
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra194-gte-lic
+    then:
+      properties:
+        nvidia,slices:
+          const: 11
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra234-gte-lic
+    then:
+      properties:
+        nvidia,slices:
+          const: 17
+
 required:
   - compatible
   - reg
-- 
2.17.1

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