diff mbox series

[5/5] dt-bindings: cpufreq: Convert ti-cpufreq.txt to yaml binding

Message ID 20230724153911.1376830-6-nm@ti.com
State Superseded
Headers show
Series dt-bindings: opp/cpufreq: Convert ti-cpufreq to | expand

Commit Message

Nishanth Menon July 24, 2023, 3:39 p.m. UTC 
Move the ti-cpufreq binding over to opp and convert to yaml

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 .../bindings/cpufreq/ti-cpufreq.txt           | 132 ------------------
 .../bindings/opp/opp-v2-ti-cpu.yaml           |  88 ++++++++++++
 2 files changed, 88 insertions(+), 132 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
 create mode 100644 Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml

Comments

Rob Herring July 26, 2023, 5:14 p.m. UTC | #1 
On Mon, Jul 24, 2023 at 10:39:11AM -0500, Nishanth Menon wrote:
> Move the ti-cpufreq binding over to opp and convert to yaml
> 
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
>  .../bindings/cpufreq/ti-cpufreq.txt           | 132 ------------------
>  .../bindings/opp/opp-v2-ti-cpu.yaml           |  88 ++++++++++++
>  2 files changed, 88 insertions(+), 132 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
>  create mode 100644 Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml


> diff --git a/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml
> new file mode 100644
> index 000000000000..758f6da619a8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml

Filename matching the compatible.

> @@ -0,0 +1,88 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/opp/opp-v2-ti-cpu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI CPU OPP
> +
> +description: |

Don't need '|'.

> +  Certain TI SoCs, like those in the am335x, am437x, am57xx, am62x and dra7xx
> +  families support different OPPs depending on the silicon variant in use.
> +  The ti-cpufreq driver can use revision and an efuse value from the SoC to
> +  provide the OPP framework with supported hardware information. This is
> +  used to determine which OPPs from the operating-points-v2 table get enabled
> +  when it is parsed by the OPP framework.
> +
> +maintainers:
> +  - Nishanth Menon <nm@ti.com>
> +
> +allOf:
> +  - $ref: opp-v2-base.yaml#
> +
> +properties:
> +  compatible:
> +    const: operating-points-v2-ti-cpu
> +
> +  syscon:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: |
> +      points to syscon node representing the control module
> +      register space of the SoC.
> +
> +  opp-shared: true
> +
> +patternProperties:
> +  '^opp(-?[0-9]+)*$':
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      clock-latency-ns: true
> +      opp-hz: true
> +      opp-microvolt: true
> +      opp-supported-hw: true
> +      opp-suspend: true
> +      turbo-mode: true
> +
> +    required:
> +      - opp-hz
> +      - opp-supported-hw
> +
> +required:
> +  - compatible
> +  - syscon
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    cpu0_opp_table: opp-table {

Drop unused labels

> +        compatible = "operating-points-v2-ti-cpu";
> +        syscon = <&scm_conf>;
> +
> +        opp-300000000 {
> +            opp-hz = /bits/ 64 <300000000>;
> +            opp-microvolt = <1100000 1078000 1122000>;
> +            opp-supported-hw = <0x06 0x0020>;
> +            opp-suspend;
> +        };
> +
> +        opp-500000000 {
> +            opp-hz = /bits/ 64 <500000000>;
> +            opp-microvolt = <1100000 1078000 1122000>;
> +            opp-supported-hw = <0x01 0xFFFF>;
> +        };
> +
> +        opp-600000000 {
> +            opp-hz = /bits/ 64 <600000000>;
> +            opp-microvolt = <1100000 1078000 1122000>;
> +            opp-supported-hw = <0x06 0x0040>;
> +        };
> +
> +        opp-1000000000 {
> +            opp-hz = /bits/ 64 <1000000000>;
> +            opp-microvolt = <1325000 1298500 1351500>;
> +            opp-supported-hw = <0x04 0x0200>;
> +        };
> +    };
> -- 
> 2.40.0
>
Nishanth Menon July 26, 2023, 7:17 p.m. UTC | #2 
On 11:14-20230726, Rob Herring wrote:
> > diff --git a/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml
> > new file mode 100644
> > index 000000000000..758f6da619a8
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml
> 
> Filename matching the compatible.

operating-points-v2-ti-cpu.yaml, OK

> 
> > @@ -0,0 +1,88 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/opp/opp-v2-ti-cpu.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: TI CPU OPP
> > +
> > +description: |
> 
> Don't need '|'.

OK

> 
[..]

> > +
> > +examples:
> > +  - |
> > +    cpu0_opp_table: opp-table {
> 
> Drop unused labels

Uggh.. yep, thanks.

[...]
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
deleted file mode 100644
index 1758051798fe..000000000000
--- a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
+++ /dev/null
@@ -1,132 +0,0 @@ 
-TI CPUFreq and OPP bindings
-================================
-
-Certain TI SoCs, like those in the am335x, am437x, am57xx, and dra7xx
-families support different OPPs depending on the silicon variant in use.
-The ti-cpufreq driver can use revision and an efuse value from the SoC to
-provide the OPP framework with supported hardware information. This is
-used to determine which OPPs from the operating-points-v2 table get enabled
-when it is parsed by the OPP framework.
-
-Required properties:
---------------------
-In 'cpus' nodes:
-- operating-points-v2: Phandle to the operating-points-v2 table to use.
-
-In 'operating-points-v2' table:
-- compatible: Should be
-	- 'operating-points-v2-ti-cpu' for am335x, am43xx, and dra7xx/am57xx,
-	  omap34xx, omap36xx and am3517 SoCs
-- syscon: A phandle pointing to a syscon node representing the control module
-	  register space of the SoC.
-
-Optional properties:
---------------------
-- "vdd-supply", "vbb-supply": to define two regulators for dra7xx
-- "cpu0-supply", "vbb-supply": to define two regulators for omap36xx
-
-For each opp entry in 'operating-points-v2' table:
-- opp-supported-hw: Two bitfields indicating:
-	1. Which revision of the SoC the OPP is supported by
-	2. Which eFuse bits indicate this OPP is available
-
-	A bitwise AND is performed against these values and if any bit
-	matches, the OPP gets enabled.
-
-Example:
---------
-
-/* From arch/arm/boot/dts/am33xx.dtsi */
-cpus {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	cpu@0 {
-		compatible = "arm,cortex-a8";
-		device_type = "cpu";
-		reg = <0>;
-
-		operating-points-v2 = <&cpu0_opp_table>;
-
-		clocks = <&dpll_mpu_ck>;
-		clock-names = "cpu";
-
-		clock-latency = <300000>; /* From omap-cpufreq driver */
-	};
-};
-
-/*
- * cpu0 has different OPPs depending on SoC revision and some on revisions
- * 0x2 and 0x4 have eFuse bits that indicate if they are available or not
- */
-cpu0_opp_table: opp-table {
-	compatible = "operating-points-v2-ti-cpu";
-	syscon = <&scm_conf>;
-
-	/*
-	 * The three following nodes are marked with opp-suspend
-	 * because they can not be enabled simultaneously on a
-	 * single SoC.
-	 */
-	opp50-300000000 {
-		opp-hz = /bits/ 64 <300000000>;
-		opp-microvolt = <950000 931000 969000>;
-		opp-supported-hw = <0x06 0x0010>;
-		opp-suspend;
-	};
-
-	opp100-275000000 {
-		opp-hz = /bits/ 64 <275000000>;
-		opp-microvolt = <1100000 1078000 1122000>;
-		opp-supported-hw = <0x01 0x00FF>;
-		opp-suspend;
-	};
-
-	opp100-300000000 {
-		opp-hz = /bits/ 64 <300000000>;
-		opp-microvolt = <1100000 1078000 1122000>;
-		opp-supported-hw = <0x06 0x0020>;
-		opp-suspend;
-	};
-
-	opp100-500000000 {
-		opp-hz = /bits/ 64 <500000000>;
-		opp-microvolt = <1100000 1078000 1122000>;
-		opp-supported-hw = <0x01 0xFFFF>;
-	};
-
-	opp100-600000000 {
-		opp-hz = /bits/ 64 <600000000>;
-		opp-microvolt = <1100000 1078000 1122000>;
-		opp-supported-hw = <0x06 0x0040>;
-	};
-
-	opp120-600000000 {
-		opp-hz = /bits/ 64 <600000000>;
-		opp-microvolt = <1200000 1176000 1224000>;
-		opp-supported-hw = <0x01 0xFFFF>;
-	};
-
-	opp120-720000000 {
-		opp-hz = /bits/ 64 <720000000>;
-		opp-microvolt = <1200000 1176000 1224000>;
-		opp-supported-hw = <0x06 0x0080>;
-	};
-
-	oppturbo-720000000 {
-		opp-hz = /bits/ 64 <720000000>;
-		opp-microvolt = <1260000 1234800 1285200>;
-		opp-supported-hw = <0x01 0xFFFF>;
-	};
-
-	oppturbo-800000000 {
-		opp-hz = /bits/ 64 <800000000>;
-		opp-microvolt = <1260000 1234800 1285200>;
-		opp-supported-hw = <0x06 0x0100>;
-	};
-
-	oppnitro-1000000000 {
-		opp-hz = /bits/ 64 <1000000000>;
-		opp-microvolt = <1325000 1298500 1351500>;
-		opp-supported-hw = <0x04 0x0200>;
-	};
-};
diff --git a/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml
new file mode 100644
index 000000000000..758f6da619a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/opp/opp-v2-ti-cpu.yaml
@@ -0,0 +1,88 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/opp/opp-v2-ti-cpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI CPU OPP
+
+description: |
+  Certain TI SoCs, like those in the am335x, am437x, am57xx, am62x and dra7xx
+  families support different OPPs depending on the silicon variant in use.
+  The ti-cpufreq driver can use revision and an efuse value from the SoC to
+  provide the OPP framework with supported hardware information. This is
+  used to determine which OPPs from the operating-points-v2 table get enabled
+  when it is parsed by the OPP framework.
+
+maintainers:
+  - Nishanth Menon <nm@ti.com>
+
+allOf:
+  - $ref: opp-v2-base.yaml#
+
+properties:
+  compatible:
+    const: operating-points-v2-ti-cpu
+
+  syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: |
+      points to syscon node representing the control module
+      register space of the SoC.
+
+  opp-shared: true
+
+patternProperties:
+  '^opp(-?[0-9]+)*$':
+    type: object
+    additionalProperties: false
+
+    properties:
+      clock-latency-ns: true
+      opp-hz: true
+      opp-microvolt: true
+      opp-supported-hw: true
+      opp-suspend: true
+      turbo-mode: true
+
+    required:
+      - opp-hz
+      - opp-supported-hw
+
+required:
+  - compatible
+  - syscon
+
+additionalProperties: false
+
+examples:
+  - |
+    cpu0_opp_table: opp-table {
+        compatible = "operating-points-v2-ti-cpu";
+        syscon = <&scm_conf>;
+
+        opp-300000000 {
+            opp-hz = /bits/ 64 <300000000>;
+            opp-microvolt = <1100000 1078000 1122000>;
+            opp-supported-hw = <0x06 0x0020>;
+            opp-suspend;
+        };
+
+        opp-500000000 {
+            opp-hz = /bits/ 64 <500000000>;
+            opp-microvolt = <1100000 1078000 1122000>;
+            opp-supported-hw = <0x01 0xFFFF>;
+        };
+
+        opp-600000000 {
+            opp-hz = /bits/ 64 <600000000>;
+            opp-microvolt = <1100000 1078000 1122000>;
+            opp-supported-hw = <0x06 0x0040>;
+        };
+
+        opp-1000000000 {
+            opp-hz = /bits/ 64 <1000000000>;
+            opp-microvolt = <1325000 1298500 1351500>;
+            opp-supported-hw = <0x04 0x0200>;
+        };
+    };