Re: [PATCH v12 6/7] dt-bindings: media: wave5: add yaml devicetree bindings

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Hey Krzysztof,

thanks for your review.

On 17.09.2023 09:56, Krzysztof Kozlowski wrote:
On 15/09/2023 23:11, Sebastian Fricke wrote:
From: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>

Add bindings for the wave5 chips&media codec driver

Signed-off-by: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Fricke <sebastian.fricke@xxxxxxxxxxxxx>

So this is v12 and still no tested?

I have tested it, multiple times actually since V11. (For some reason
that indentation issue slipped by me though ...)
If you mean the tested by tag, the patch was completely unnoticed until
v10 by the community, which was partially because me and the previous
commiters didn't use the right recipients for this patch. So from that
point of view this is more like v2.


A nit, subject: drop second/last, redundant "yaml devicetree indings".
The "dt-bindings" prefix is already stating that these are bindings.
Basically three words bringing zero information.

Okay so:
`dt-bindings: media: wave5: add devicetree`
?


---
 .../devicetree/bindings/media/cnm,wave5.yaml       | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/cnm,wave5.yaml b/Documentation/devicetree/bindings/media/cnm,wave5.yaml
new file mode 100644
index 000000000000..b8f383621805
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/cnm,wave5.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/cnm,wave5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Chips&Media Wave 5 Series multi-standard codec IP
+
+maintainers:
+  - Nas Chung <nas.chung@xxxxxxxxxxxxxxx>
+  - Jackson Lee <jackson.lee@xxxxxxxxxxxxxxx>
+
+description: |-

Do not need '|-' unless you need to preserve formatting.

Ack.


+  The Chips&Media WAVE codec IP is a multi format video encoder/decoder
+
+properties:
+  compatible:
+    enum:
+        - cnm,cm521c-vpu

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

Here my testing output:
```
❯ make dt_binding_check DT_SCHEMA_FILES=cnm,wave5.yaml
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/util.o
  LEX     scripts/dtc/dtc-lexer.lex.c
  YACC    scripts/dtc/dtc-parser.tab.[ch]
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTLD  scripts/dtc/dtc
  LINT    Documentation/devicetree/bindings
./Documentation/devicetree/bindings/media/cnm,wave5.yaml:19:9: [warning] wrong indentation: expected 6 but found 8 (indentation)
  CHKDT   Documentation/devicetree/bindings/processed-schema.json
  SCHEMA  Documentation/devicetree/bindings/processed-schema.json
  DTEX    Documentation/devicetree/bindings/media/cnm,wave5.example.dts
  DTC_CHK Documentation/devicetree/bindings/media/cnm,wave5.example.dtb
```

Again sorry about missing the indentation warning, but nothing else was
highlighted.

Both dtschema and yamllint seem to be up-to-date:
```
❯ python3 -m pip --version
pip 23.2.1 from /home/basti/.local/lib/python3.8/site-packages/pip (python 3.8)
❯ pip3 show dtschema
Name: dtschema
Version: 2023.7
Summary: DeviceTree validation schema and tools
Home-page: https://github.com/devicetree-org/dt-schema
Author: Rob Herring
Author-email: robh@xxxxxxxxxx
License: BSD
Location: /home/basti/.local/lib/python3.8/site-packages
Requires: jsonschema, pylibfdt, rfc3987, ruamel.yaml
Required-by: ❯ pip3 show yamllint
Name: yamllint
Version: 1.32.0
Summary: A linter for YAML files.
Home-page: Author: Adrien Vergé Author-email: License: GPL-3.0-only
Location: /home/basti/.local/lib/python3.8/site-packages
Requires: pathspec, pyyaml
Required-by: ```


Missing blank line

Ack, will add that.

+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: VCODEC clock
+
+  clock-names:
+    items:
+      - const: vcodec

Drop clock-names, not really useful for one entry.

Ack


+
+  interrupts:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  sram:
+    $ref: /schemas/types.yaml#/definitions/phandle
+

Drop blank line

Ack


+    description:
+      The VPU uses the SRAM to store some of the reference data instead of
+      storing it on DMA memory. It is mainly used for the purpose of reducing
+      bandwidth.
+
+required:
+  - compatible
+  - reg
+  - interrupts

Keep the same order as listed in properties:

Ack


+  - clocks
+  - clock-names
+
+additionalProperties: false
+

Best regards,
Krzysztof

Sincerely,
Sebastian


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