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Date: Tue, 5 May 2020 17:51:27 +0200
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Rob Herring <robh+dt@...nel.org>
Cc: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v2] dt-bindings: timer: renesas: cmt: Convert to json-schema
Convert the Renesas Compare Match Timer (CMT) Device Tree binding
documentation to json-schema.
Document missing properties.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Reviewed-by: Rob Herring <robh@...nel.org>
---
v2:
- Add missing "additionalProperties: false",
- Add Reviewed-by.
---
.../devicetree/bindings/timer/renesas,cmt.txt | 110 -----------
.../bindings/timer/renesas,cmt.yaml | 182 ++++++++++++++++++
2 files changed, 182 insertions(+), 110 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/timer/renesas,cmt.txt
create mode 100644 Documentation/devicetree/bindings/timer/renesas,cmt.yaml
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
deleted file mode 100644
index a747fabab7d3fda4..0000000000000000
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt
+++ /dev/null
@@ -1,110 +0,0 @@
-* Renesas R-Car Compare Match Timer (CMT)
-
-The CMT is a multi-channel 16/32/48-bit timer/counter with configurable clock
-inputs and programmable compare match.
-
-Channels share hardware resources but their counter and compare match value
-are independent. A particular CMT instance can implement only a subset of the
-channels supported by the CMT model. Channel indices represent the hardware
-position of the channel in the CMT and don't match the channel numbers in the
-datasheets.
-
-Required Properties:
-
- - compatible: must contain one or more of the following:
- - "renesas,r8a73a4-cmt0" for the 32-bit CMT0 device included in r8a73a4.
- - "renesas,r8a73a4-cmt1" for the 48-bit CMT1 device included in r8a73a4.
- - "renesas,r8a7740-cmt0" for the 32-bit CMT0 device included in r8a7740.
- - "renesas,r8a7740-cmt1" for the 48-bit CMT1 device included in r8a7740.
- - "renesas,r8a7740-cmt2" for the 32-bit CMT2 device included in r8a7740.
- - "renesas,r8a7740-cmt3" for the 32-bit CMT3 device included in r8a7740.
- - "renesas,r8a7740-cmt4" for the 32-bit CMT4 device included in r8a7740.
- - "renesas,r8a7743-cmt0" for the 32-bit CMT0 device included in r8a7743.
- - "renesas,r8a7743-cmt1" for the 48-bit CMT1 device included in r8a7743.
- - "renesas,r8a7744-cmt0" for the 32-bit CMT0 device included in r8a7744.
- - "renesas,r8a7744-cmt1" for the 48-bit CMT1 device included in r8a7744.
- - "renesas,r8a7745-cmt0" for the 32-bit CMT0 device included in r8a7745.
- - "renesas,r8a7745-cmt1" for the 48-bit CMT1 device included in r8a7745.
- - "renesas,r8a77470-cmt0" for the 32-bit CMT0 device included in r8a77470.
- - "renesas,r8a77470-cmt1" for the 48-bit CMT1 device included in r8a77470.
- - "renesas,r8a774a1-cmt0" for the 32-bit CMT0 device included in r8a774a1.
- - "renesas,r8a774a1-cmt1" for the 48-bit CMT devices included in r8a774a1.
- - "renesas,r8a774b1-cmt0" for the 32-bit CMT0 device included in r8a774b1.
- - "renesas,r8a774b1-cmt1" for the 48-bit CMT devices included in r8a774b1.
- - "renesas,r8a774c0-cmt0" for the 32-bit CMT0 device included in r8a774c0.
- - "renesas,r8a774c0-cmt1" for the 48-bit CMT devices included in r8a774c0.
- - "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790.
- - "renesas,r8a7790-cmt1" for the 48-bit CMT1 device included in r8a7790.
- - "renesas,r8a7791-cmt0" for the 32-bit CMT0 device included in r8a7791.
- - "renesas,r8a7791-cmt1" for the 48-bit CMT1 device included in r8a7791.
- - "renesas,r8a7792-cmt0" for the 32-bit CMT0 device included in r8a7792.
- - "renesas,r8a7792-cmt1" for the 48-bit CMT1 device included in r8a7792.
- - "renesas,r8a7793-cmt0" for the 32-bit CMT0 device included in r8a7793.
- - "renesas,r8a7793-cmt1" for the 48-bit CMT1 device included in r8a7793.
- - "renesas,r8a7794-cmt0" for the 32-bit CMT0 device included in r8a7794.
- - "renesas,r8a7794-cmt1" for the 48-bit CMT1 device included in r8a7794.
- - "renesas,r8a7795-cmt0" for the 32-bit CMT0 device included in r8a7795.
- - "renesas,r8a7795-cmt1" for the 48-bit CMT devices included in r8a7795.
- - "renesas,r8a7796-cmt0" for the 32-bit CMT0 device included in r8a7796.
- - "renesas,r8a7796-cmt1" for the 48-bit CMT devices included in r8a7796.
- - "renesas,r8a77965-cmt0" for the 32-bit CMT0 device included in r8a77965.
- - "renesas,r8a77965-cmt1" for the 48-bit CMT devices included in r8a77965.
- - "renesas,r8a77970-cmt0" for the 32-bit CMT0 device included in r8a77970.
- - "renesas,r8a77970-cmt1" for the 48-bit CMT devices included in r8a77970.
- - "renesas,r8a77980-cmt0" for the 32-bit CMT0 device included in r8a77980.
- - "renesas,r8a77980-cmt1" for the 48-bit CMT devices included in r8a77980.
- - "renesas,r8a77990-cmt0" for the 32-bit CMT0 device included in r8a77990.
- - "renesas,r8a77990-cmt1" for the 48-bit CMT devices included in r8a77990.
- - "renesas,r8a77995-cmt0" for the 32-bit CMT0 device included in r8a77995.
- - "renesas,r8a77995-cmt1" for the 48-bit CMT devices included in r8a77995.
- - "renesas,sh73a0-cmt0" for the 32-bit CMT0 device included in sh73a0.
- - "renesas,sh73a0-cmt1" for the 48-bit CMT1 device included in sh73a0.
- - "renesas,sh73a0-cmt2" for the 32-bit CMT2 device included in sh73a0.
- - "renesas,sh73a0-cmt3" for the 32-bit CMT3 device included in sh73a0.
- - "renesas,sh73a0-cmt4" for the 32-bit CMT4 device included in sh73a0.
-
- - "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2
- and RZ/G1.
- - "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2
- and RZ/G1.
- These are fallbacks for r8a73a4, R-Car Gen2 and RZ/G1 entries
- listed above.
- - "renesas,rcar-gen3-cmt0" for 32-bit CMT0 devices included in R-Car Gen3
- and RZ/G2.
- - "renesas,rcar-gen3-cmt1" for 48-bit CMT devices included in R-Car Gen3
- and RZ/G2.
- These are fallbacks for R-Car Gen3 and RZ/G2 entries listed
- above.
-
- - reg: base address and length of the registers block for the timer module.
- - interrupts: interrupt-specifier for the timer, one per channel.
- - clocks: a list of phandle + clock-specifier pairs, one for each entry
- in clock-names.
- - clock-names: must contain "fck" for the functional clock.
-
-
-Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
-
- cmt0: timer@...a0000 {
- compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0";
- reg = <0 0xffca0000 0 0x1004>;
- interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
- <0 142 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp1_clks R8A7790_CLK_CMT0>;
- clock-names = "fck";
- };
-
- cmt1: timer@...30000 {
- compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1";
- reg = <0 0xe6130000 0 0x1004>;
- interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>,
- <0 121 IRQ_TYPE_LEVEL_HIGH>,
- <0 122 IRQ_TYPE_LEVEL_HIGH>,
- <0 123 IRQ_TYPE_LEVEL_HIGH>,
- <0 124 IRQ_TYPE_LEVEL_HIGH>,
- <0 125 IRQ_TYPE_LEVEL_HIGH>,
- <0 126 IRQ_TYPE_LEVEL_HIGH>,
- <0 127 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp3_clks R8A7790_CLK_CMT1>;
- clock-names = "fck";
- };
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.yaml b/Documentation/devicetree/bindings/timer/renesas,cmt.yaml
new file mode 100644
index 0000000000000000..7e4dc5623da80e5d
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.yaml
@@ -0,0 +1,182 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/renesas,cmt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas Compare Match Timer (CMT)
+
+maintainers:
+ - Geert Uytterhoeven <geert+renesas@...der.be>
+ - Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
+
+description:
+ The CMT is a multi-channel 16/32/48-bit timer/counter with configurable clock
+ inputs and programmable compare match.
+
+ Channels share hardware resources but their counter and compare match values
+ are independent. A particular CMT instance can implement only a subset of the
+ channels supported by the CMT model. Channel indices represent the hardware
+ position of the channel in the CMT and don't match the channel numbers in the
+ datasheets.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r8a7740-cmt0 # 32-bit CMT0 on R-Mobile A1
+ - renesas,r8a7740-cmt1 # 48-bit CMT1 on R-Mobile A1
+ - renesas,r8a7740-cmt2 # 32-bit CMT2 on R-Mobile A1
+ - renesas,r8a7740-cmt3 # 32-bit CMT3 on R-Mobile A1
+ - renesas,r8a7740-cmt4 # 32-bit CMT4 on R-Mobile A1
+ - renesas,sh73a0-cmt0 # 32-bit CMT0 on SH-Mobile AG5
+ - renesas,sh73a0-cmt1 # 48-bit CMT1 on SH-Mobile AG5
+ - renesas,sh73a0-cmt2 # 32-bit CMT2 on SH-Mobile AG5
+ - renesas,sh73a0-cmt3 # 32-bit CMT3 on SH-Mobile AG5
+ - renesas,sh73a0-cmt4 # 32-bit CMT4 on SH-Mobile AG5
+
+ - items:
+ - enum:
+ - renesas,r8a73a4-cmt0 # 32-bit CMT0 on R-Mobile APE6
+ - renesas,r8a7743-cmt0 # 32-bit CMT0 on RZ/G1M
+ - renesas,r8a7744-cmt0 # 32-bit CMT0 on RZ/G1N
+ - renesas,r8a7745-cmt0 # 32-bit CMT0 on RZ/G1E
+ - renesas,r8a77470-cmt0 # 32-bit CMT0 on RZ/G1C
+ - renesas,r8a7790-cmt0 # 32-bit CMT0 on R-Car H2
+ - renesas,r8a7791-cmt0 # 32-bit CMT0 on R-Car M2-W
+ - renesas,r8a7792-cmt0 # 32-bit CMT0 on R-Car V2H
+ - renesas,r8a7793-cmt0 # 32-bit CMT0 on R-Car M2-N
+ - renesas,r8a7794-cmt0 # 32-bit CMT0 on R-Car E2
+ - const: renesas,rcar-gen2-cmt0 # 32-bit CMT0 on R-Mobile APE6, R-Car Gen2 and RZ/G1
+
+ - items:
+ - enum:
+ - renesas,r8a73a4-cmt1 # 48-bit CMT1 on R-Mobile APE6
+ - renesas,r8a7743-cmt1 # 48-bit CMT1 on RZ/G1M
+ - renesas,r8a7744-cmt1 # 48-bit CMT1 on RZ/G1N
+ - renesas,r8a7745-cmt1 # 48-bit CMT1 on RZ/G1E
+ - renesas,r8a77470-cmt1 # 48-bit CMT1 on RZ/G1C
+ - renesas,r8a7790-cmt1 # 48-bit CMT1 on R-Car H2
+ - renesas,r8a7791-cmt1 # 48-bit CMT1 on R-Car M2-W
+ - renesas,r8a7792-cmt1 # 48-bit CMT1 on R-Car V2H
+ - renesas,r8a7793-cmt1 # 48-bit CMT1 on R-Car M2-N
+ - renesas,r8a7794-cmt1 # 48-bit CMT1 on R-Car E2
+ - const: renesas,rcar-gen2-cmt1 # 48-bit CMT1 on R-Mobile APE6, R-Car Gen2 and RZ/G1
+
+ - items:
+ - enum:
+ - renesas,r8a774a1-cmt0 # 32-bit CMT0 on RZ/G2M
+ - renesas,r8a774b1-cmt0 # 32-bit CMT0 on RZ/G2N
+ - renesas,r8a774c0-cmt0 # 32-bit CMT0 on RZ/G2E
+ - renesas,r8a7795-cmt0 # 32-bit CMT0 on R-Car H3
+ - renesas,r8a7796-cmt0 # 32-bit CMT0 on R-Car M3-W
+ - renesas,r8a77965-cmt0 # 32-bit CMT0 on R-Car M3-N
+ - renesas,r8a77970-cmt0 # 32-bit CMT0 on R-Car V3M
+ - renesas,r8a77980-cmt0 # 32-bit CMT0 on R-Car V3H
+ - renesas,r8a77990-cmt0 # 32-bit CMT0 on R-Car E3
+ - renesas,r8a77995-cmt0 # 32-bit CMT0 on R-Car D3
+ - const: renesas,rcar-gen3-cmt0 # 32-bit CMT0 on R-Car Gen3 and RZ/G2
+
+ - items:
+ - enum:
+ - renesas,r8a774a1-cmt1 # 48-bit CMT on RZ/G2M
+ - renesas,r8a774b1-cmt1 # 48-bit CMT on RZ/G2N
+ - renesas,r8a774c0-cmt1 # 48-bit CMT on RZ/G2E
+ - renesas,r8a7795-cmt1 # 48-bit CMT on R-Car H3
+ - renesas,r8a7796-cmt1 # 48-bit CMT on R-Car M3-W
+ - renesas,r8a77965-cmt1 # 48-bit CMT on R-Car M3-N
+ - renesas,r8a77970-cmt1 # 48-bit CMT on R-Car V3M
+ - renesas,r8a77980-cmt1 # 48-bit CMT on R-Car V3H
+ - renesas,r8a77990-cmt1 # 48-bit CMT on R-Car E3
+ - renesas,r8a77995-cmt1 # 48-bit CMT on R-Car D3
+ - const: renesas,rcar-gen3-cmt1 # 48-bit CMT on R-Car Gen3 and RZ/G2
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 8
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: fck
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rcar-gen2-cmt0
+ - renesas,rcar-gen3-cmt0
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rcar-gen2-cmt1
+ - renesas,rcar-gen3-cmt1
+ then:
+ properties:
+ interrupts:
+ minItems: 8
+ maxItems: 8
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a7790-sysc.h>
+ cmt0: timer@...a0000 {
+ compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0";
+ reg = <0xffca0000 0x1004>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 124>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+ resets = <&cpg 124>;
+ };
+
+ cmt1: timer@...30000 {
+ compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1";
+ reg = <0xe6130000 0x1004>;
+ interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 329>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+ resets = <&cpg 329>;
+ };
--
2.17.1
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