From af583852d2efcbc76ce68ac8d65126d4b0c65067 Mon Sep 17 00:00:00 2001 From: Dipen Patel Date: Thu, 12 May 2022 10:50:11 -0700 Subject: dt-bindings: Renamed hte directory to timestamp Renamed hte dt binding directory to timestamp according review comment. Addressed minor comment about having HTE acronym first in the common dt binding document. The change reflects above renaming in MAINTAINERS files too. Signed-off-by: Dipen Patel Reviewed-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Thierry Reding --- .../bindings/timestamp/nvidia,tegra194-hte.yaml | 88 ++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml (limited to 'Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml') diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml new file mode 100644 index 000000000000..69e8402d95e5 --- /dev/null +++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml @@ -0,0 +1,88 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hte/nvidia,tegra194-hte.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Tegra194 on chip generic hardware timestamping engine (HTE) + +maintainers: + - Dipen Patel + +description: + Tegra SoC has two instances of generic hardware timestamping engines (GTE) + known as GTE GPIO and GTE IRQ, which can monitor subset of GPIO and on chip + IRQ lines for the state change respectively, upon detection it will record + timestamp (taken from system counter) in its internal hardware FIFO. It has + a bitmap array arranged in 32bit slices where each bit represent signal/line + to enable or disable for the hardware timestamping. The GTE GPIO monitors + GPIO lines from the AON (always on) GPIO controller. + +properties: + compatible: + enum: + - nvidia,tegra194-gte-aon + - nvidia,tegra194-gte-lic + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + nvidia,int-threshold: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + HTE device generates its interrupt based on this u32 FIFO threshold + value. The recommended value is 1. + minimum: 1 + maximum: 256 + + nvidia,slices: + $ref: /schemas/types.yaml#/definitions/uint32 + 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] + + '#timestamp-cells': + description: + This represents number of line id arguments as specified by the + consumers. For the GTE IRQ, this is IRQ number as mentioned in the + SoC technical reference manual. For the GTE GPIO, its value is same as + mentioned in the nvidia GPIO device tree binding document. + const: 1 + +required: + - compatible + - reg + - interrupts + - nvidia,slices + - "#timestamp-cells" + +additionalProperties: false + +examples: + - | + tegra_hte_aon: timestamp@c1e0000 { + compatible = "nvidia,tegra194-gte-aon"; + reg = <0xc1e0000 0x10000>; + interrupts = <0 13 0x4>; + nvidia,int-threshold = <1>; + nvidia,slices = <3>; + #timestamp-cells = <1>; + }; + + - | + tegra_hte_lic: timestamp@3aa0000 { + compatible = "nvidia,tegra194-gte-lic"; + reg = <0x3aa0000 0x10000>; + interrupts = <0 11 0x4>; + nvidia,int-threshold = <1>; + nvidia,slices = <11>; + #timestamp-cells = <1>; + }; + +... -- cgit v1.2.3 From 5dad4eccd2b4316a84209603a28d34c6346392bb Mon Sep 17 00:00:00 2001 From: Dipen Patel Date: Mon, 23 May 2022 10:25:15 -0700 Subject: dt-bindings: timestamp: Correct id path During the repository renaming from hte to timestamp, $id path was not updated accordingly. This patch corrects $id path. Fixes: af583852d2ef ("dt-bindings: Renamed hte directory to timestamp") Signed-off-by: Dipen Patel Acked-by: Rob Herring Signed-off-by: Thierry Reding --- .../devicetree/bindings/timestamp/hardware-timestamps-common.yaml | 2 +- Documentation/devicetree/bindings/timestamp/hte-consumer.yaml | 2 +- Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml') diff --git a/Documentation/devicetree/bindings/timestamp/hardware-timestamps-common.yaml b/Documentation/devicetree/bindings/timestamp/hardware-timestamps-common.yaml index 4c25ba248a72..fd6a7b51f571 100644 --- a/Documentation/devicetree/bindings/timestamp/hardware-timestamps-common.yaml +++ b/Documentation/devicetree/bindings/timestamp/hardware-timestamps-common.yaml @@ -1,7 +1,7 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- -$id: http://devicetree.org/schemas/hte/hardware-timestamps-common.yaml# +$id: http://devicetree.org/schemas/timestamp/hardware-timestamps-common.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Hardware timestamp providers diff --git a/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml b/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml index 68d764ac040a..6456515c3d26 100644 --- a/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml +++ b/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml @@ -1,7 +1,7 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- -$id: http://devicetree.org/schemas/hte/hte-consumer.yaml# +$id: http://devicetree.org/schemas/timestamp/hte-consumer.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: HTE Consumer Device Tree Bindings diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml index 69e8402d95e5..c31e207d1652 100644 --- a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml +++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml @@ -1,7 +1,7 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- -$id: http://devicetree.org/schemas/hte/nvidia,tegra194-hte.yaml# +$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) -- cgit v1.2.3