2021-12-24 23:46:15

by David Heidelberg

[permalink] [raw]
Subject: [PATCH] dt-bindings: timer: convert MSM timer to yaml

Convert Qualcomm MSM Timer to yaml format.

Signed-off-by: David Heidelberg <[email protected]>

---
It has currently issue, that it fights with watchdog/qcom-wdt.yaml
Both bindings and drivers use similar sets of compatibles and qcom-wdt
isn't very strictly defined.

.../bindings/timer/qcom,msm-timer.txt | 47 -----------
.../bindings/timer/qcom,msm-timer.yaml | 78 +++++++++++++++++++
2 files changed, 78 insertions(+), 47 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
create mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml

diff --git a/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt b/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
deleted file mode 100644
index 5e10c345548f..000000000000
--- a/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-* MSM Timer
-
-Properties:
-
-- compatible : Should at least contain "qcom,msm-timer". More specific
- properties specify which subsystem the timers are paired with.
-
- "qcom,kpss-timer" - krait subsystem
- "qcom,scss-timer" - scorpion subsystem
-
-- interrupts : Interrupts for the debug timer, the first general purpose
- timer, and optionally a second general purpose timer, and
- optionally as well, 2 watchdog interrupts, in that order.
-
-- reg : Specifies the base address of the timer registers.
-
-- clocks: Reference to the parent clocks, one per output clock. The parents
- must appear in the same order as the clock names.
-
-- clock-names: The name of the clocks as free-form strings. They should be in
- the same order as the clocks.
-
-- clock-frequency : The frequency of the debug timer and the general purpose
- timer(s) in Hz in that order.
-
-Optional:
-
-- cpu-offset : per-cpu offset used when the timer is accessed without the
- CPU remapping facilities. The offset is
- cpu-offset + (0x10000 * cpu-nr).
-
-Example:
-
- timer@200a000 {
- compatible = "qcom,scss-timer", "qcom,msm-timer";
- interrupts = <1 1 0x301>,
- <1 2 0x301>,
- <1 3 0x301>,
- <1 4 0x301>,
- <1 5 0x301>;
- reg = <0x0200a000 0x100>;
- clock-frequency = <19200000>,
- <32768>;
- clocks = <&sleep_clk>;
- clock-names = "sleep";
- cpu-offset = <0x40000>;
- };
diff --git a/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml b/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
new file mode 100644
index 000000000000..238eb985d0fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/qcom,msm-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM Timer
+
+maintainers:
+ - Rob Herring <[email protected]>
+
+properties:
+ $nodename:
+ pattern: '^timer@[a-f0-9]+$'
+
+ compatible:
+ oneOf:
+ - items:
+ - const: qcom,kpss-timer
+ - enum:
+ - qcom,kpss-wdt-apq8064
+ - qcom,kpss-wdt-ipq8064
+ - qcom,kpss-wdt-msm8960
+ - const: qcom,msm-timer
+ - items:
+ - enum:
+ - qcom,kpss-timer # Krait subsystem
+ - qcom,scss-timer # Scorpion subsystem
+ - const: qcom,msm-timer
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: 1st purpose timer
+ - description: 2nd general purpose timer
+ - description: 1st watchdog interrupt
+ - description: 2nd watchdog interrupt
+ - description: 3nd watchdog interrupt
+
+ clocks: true
+
+ clock-names: true
+
+ clock-frequency: true
+
+ cpu-offset:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: >
+ Per-cpu offset used when the timer is accessed without the
+ CPU remapping facilities. The offset is cpu-offset + (0x10000 * cpu-nr).
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-frequency
+
+additionalProperties: false
+
+examples:
+ - |
+ timer@200a000 {
+ compatible = "qcom,scss-timer", "qcom,msm-timer";
+ interrupts = <1 1 0x301>,
+ <1 2 0x301>,
+ <1 3 0x301>,
+ <1 4 0x301>,
+ <1 5 0x301>;
+ reg = <0x0200a000 0x100>;
+ clock-frequency = <19200000>,
+ <32768>;
+ clocks = <&sleep_clk>;
+ clock-names = "sleep";
+ cpu-offset = <0x40000>;
+ };
--
2.34.1



2021-12-25 14:49:09

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: timer: convert MSM timer to yaml

On Sat, 25 Dec 2021 00:46:06 +0100, David Heidelberg wrote:
> Convert Qualcomm MSM Timer to yaml format.
>
> Signed-off-by: David Heidelberg <[email protected]>
>
> ---
> It has currently issue, that it fights with watchdog/qcom-wdt.yaml
> Both bindings and drivers use similar sets of compatibles and qcom-wdt
> isn't very strictly defined.
>
> .../bindings/timer/qcom,msm-timer.txt | 47 -----------
> .../bindings/timer/qcom,msm-timer.yaml | 78 +++++++++++++++++++
> 2 files changed, 78 insertions(+), 47 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
> create mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
>

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.example.dt.yaml: watchdog@208a038: $nodename:0: 'watchdog@208a038' does not match '^timer@[a-f0-9]+$'
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.example.dt.yaml: watchdog@208a038: compatible: 'oneOf' conditional failed, one must be fixed:
['qcom,kpss-wdt-ipq8064'] is too short
'qcom,kpss-timer' was expected
'qcom,kpss-wdt-ipq8064' is not one of ['qcom,kpss-timer', 'qcom,scss-timer']
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.example.dt.yaml: watchdog@208a038: 'clock-frequency' is a required property
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.example.dt.yaml: watchdog@208a038: 'timeout-sec' does not match any of the regexes: 'pinctrl-[0-9]+'
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.example.dt.yaml: watchdog@208a038: 'oneOf' conditional failed, one must be fixed:
'interrupts' is a required property
'interrupts-extended' is a required property
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: $nodename:0: 'timer@200a000' does not match '^watchdog(@.*|-[0-9a-f])?$'
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: compatible: ['qcom,scss-timer', 'qcom,msm-timer'] is too long
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: compatible: Additional items are not allowed ('qcom,msm-timer' was unexpected)
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: Unevaluated properties are not allowed ('compatible', 'interrupts', 'clock-frequency', 'clock-names', 'cpu-offset' were unexpected)
From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: clock-frequency: 'oneOf' conditional failed, one must be fixed:
[[19200000], [32768]] is too long
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/qcom,msm-timer.example.dt.yaml: timer@200a000: clock-frequency: 'oneOf' conditional failed, one must be fixed:
[[19200000], [32768]] is too long
missing size tag in [[19200000], [32768]]
[19200000] is too short
[32768] is too short
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/clock/clock.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1573127

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.


2021-12-27 16:23:58

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: timer: convert MSM timer to yaml

On Sat, Dec 25, 2021 at 12:46:06AM +0100, David Heidelberg wrote:
> Convert Qualcomm MSM Timer to yaml format.
>
> Signed-off-by: David Heidelberg <[email protected]>
>
> ---
> It has currently issue, that it fights with watchdog/qcom-wdt.yaml
> Both bindings and drivers use similar sets of compatibles and qcom-wdt
> isn't very strictly defined.

What a mess... They should be merged most likely.

>
> .../bindings/timer/qcom,msm-timer.txt | 47 -----------
> .../bindings/timer/qcom,msm-timer.yaml | 78 +++++++++++++++++++
> 2 files changed, 78 insertions(+), 47 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
> create mode 100644 Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
>
> diff --git a/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt b/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
> deleted file mode 100644
> index 5e10c345548f..000000000000
> --- a/Documentation/devicetree/bindings/timer/qcom,msm-timer.txt
> +++ /dev/null
> @@ -1,47 +0,0 @@
> -* MSM Timer
> -
> -Properties:
> -
> -- compatible : Should at least contain "qcom,msm-timer". More specific
> - properties specify which subsystem the timers are paired with.
> -
> - "qcom,kpss-timer" - krait subsystem
> - "qcom,scss-timer" - scorpion subsystem
> -
> -- interrupts : Interrupts for the debug timer, the first general purpose
> - timer, and optionally a second general purpose timer, and
> - optionally as well, 2 watchdog interrupts, in that order.
> -
> -- reg : Specifies the base address of the timer registers.
> -
> -- clocks: Reference to the parent clocks, one per output clock. The parents
> - must appear in the same order as the clock names.
> -
> -- clock-names: The name of the clocks as free-form strings. They should be in
> - the same order as the clocks.
> -
> -- clock-frequency : The frequency of the debug timer and the general purpose
> - timer(s) in Hz in that order.
> -
> -Optional:
> -
> -- cpu-offset : per-cpu offset used when the timer is accessed without the
> - CPU remapping facilities. The offset is
> - cpu-offset + (0x10000 * cpu-nr).
> -
> -Example:
> -
> - timer@200a000 {
> - compatible = "qcom,scss-timer", "qcom,msm-timer";
> - interrupts = <1 1 0x301>,
> - <1 2 0x301>,
> - <1 3 0x301>,
> - <1 4 0x301>,
> - <1 5 0x301>;
> - reg = <0x0200a000 0x100>;
> - clock-frequency = <19200000>,
> - <32768>;
> - clocks = <&sleep_clk>;
> - clock-names = "sleep";
> - cpu-offset = <0x40000>;
> - };
> diff --git a/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml b/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
> new file mode 100644
> index 000000000000..238eb985d0fb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/qcom,msm-timer.yaml
> @@ -0,0 +1,78 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/qcom,msm-timer.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm MSM Timer
> +
> +maintainers:
> + - Rob Herring <[email protected]>
> +
> +properties:
> + $nodename:
> + pattern: '^timer@[a-f0-9]+$'
> +
> + compatible:
> + oneOf:
> + - items:
> + - const: qcom,kpss-timer
> + - enum:
> + - qcom,kpss-wdt-apq8064
> + - qcom,kpss-wdt-ipq8064
> + - qcom,kpss-wdt-msm8960

Wrong order here. qcom,kpss-timer should be after these as it is less
specific.
> + - const: qcom,msm-timer

Drop this compatible string. It is unused and pointless.

> + - items:
> + - enum:
> + - qcom,kpss-timer # Krait subsystem
> + - qcom,scss-timer # Scorpion subsystem
> + - const: qcom,msm-timer
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + minItems: 1
> + items:
> + - description: 1st purpose timer
> + - description: 2nd general purpose timer
> + - description: 1st watchdog interrupt
> + - description: 2nd watchdog interrupt
> + - description: 3nd watchdog interrupt
> +
> + clocks: true

You must define how many.

> +
> + clock-names: true
> +
> + clock-frequency: true
> +
> + cpu-offset:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: >
> + Per-cpu offset used when the timer is accessed without the
> + CPU remapping facilities. The offset is cpu-offset + (0x10000 * cpu-nr).
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clock-frequency
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + timer@200a000 {
> + compatible = "qcom,scss-timer", "qcom,msm-timer";
> + interrupts = <1 1 0x301>,
> + <1 2 0x301>,
> + <1 3 0x301>,
> + <1 4 0x301>,
> + <1 5 0x301>;
> + reg = <0x0200a000 0x100>;
> + clock-frequency = <19200000>,
> + <32768>;
> + clocks = <&sleep_clk>;
> + clock-names = "sleep";
> + cpu-offset = <0x40000>;
> + };
> --
> 2.34.1
>
>