[PATCH V4 02/10] dt-bindings: timestamp: Add Tegra234 support

Dipen Patel
2023-03-23T01:30:01Z

Added timestamp provider support for the Tegra234 in devicetree
bindings.

Signed-off-by: Dipen Patel <dipenp@nvidia.com>
---
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@nvidia.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