Thread (18 messages) 18 messages, 2 authors, 2023-02-08

Re: [PATCH 07/15] dt-bindings: clock: Add Ambarella clock bindings

From: Krzysztof Kozlowski <hidden>
Date: 2023-01-23 08:11:17
Also in: linux-clk, linux-devicetree, lkml

On 23/01/2023 08:32, Li Chen wrote:
This patch introduce clock bindings for Ambarella.

Signed-off-by: Li Chen <redacted>
Change-Id: I29018a23ed3a5b79a1103e859a5c7ed7bb83a261
All the same problems plus new:

Subject: drop second/last, redundant "bindings". The "dt-bindings"
prefix is already stating that these are bindings.
quoted hunk
---
 .../clock/ambarella,composite-clock.yaml      | 52 ++++++++++++++++
 .../bindings/clock/ambarella,pll-clock.yaml   | 59 +++++++++++++++++++
 MAINTAINERS                                   |  2 +
 3 files changed, 113 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/ambarella,composite-clock.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/ambarella,pll-clock.yaml
diff --git a/Documentation/devicetree/bindings/clock/ambarella,composite-clock.yaml b/Documentation/devicetree/bindings/clock/ambarella,composite-clock.yaml
new file mode 100644
index 000000000000..fac1cb9379c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ambarella,composite-clock.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ambarella,composite-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ambarella Composite Clock
+
+maintainers:
+  - Li Chen <lchen@ambarella.com>
+
Missing description.
+properties:
+  compatible:
+    items:
Drop items.
+      - const: ambarella,composite-clock
Missing SoC specific compatible. This is anyway not really correct
compatible...
+
+  clocks: true
No, needs constraints.
+  assigned-clocks: true
+  assigned-clock-parents: true
+  assigned-clock-rates: true
Drop these three.
+  clock-output-names: true
Missing constraints.
+  amb,mux-regmap: true
NAK.

It's enough. The patches have very, very poor quality.

Missing description, missing type/$ref, wrong prefix.
+  amb,div-regmap: true
+  amb,div-width: true
+  amb,div-shift: true
These two are arguments to phandle.
+
+  '#clock-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
So why you decided to add it here and not in other places?
+
+examples:
+  - |
+      gclk_uart0: gclk-uart0 {
Wrong indentation.
quoted hunk
+        #clock-cells = <0>;
+        compatible = "ambarella,composite-clock";
+        clocks = <&osc>, <&gclk_core>, <&pll_out_enet>, <&pll_out_sd>;
+        clock-output-names = "gclk_uart0";
+        assigned-clocks = <&gclk_uart0>;
+        assigned-clock-parents = <&osc>;
+        assigned-clock-rates = <24000000>;
+        amb,mux-regmap = <&rct_syscon 0x1c8>;
+        amb,div-regmap = <&rct_syscon 0x038>;
+        amb,div-width = <24>;
+        amb,div-shift = <0>;
+      };
diff --git a/Documentation/devicetree/bindings/clock/ambarella,pll-clock.yaml b/Documentation/devicetree/bindings/clock/ambarella,pll-clock.yaml
new file mode 100644
index 000000000000..65c1feb60041
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ambarella,pll-clock.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ambarella,pll-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ambarella PLL Clock
+
+maintainers:
+  - Li Chen <lchen@ambarella.com>
+
+properties:
+  compatible:
+    enum:
+      - ambarella,pll-clock
+      - ambarella,clkpll-v0
+
+if:
No, this does not work like that. It sits under "allOf", located after
"required:".
+  properties:
+    compatible:
+      const: ambarella,pll-clock
+
+then:
+  properties:
+    clocks:
+      maxItems: 1
+
+    clock-output-names: true
+    amb,clk-regmap: true
+    amb,frac-mode: true
+    assigned-clocks: true
+    assigned-clock-rates: true
Same problems.
+    gclk_axi: gclk-axi {
+        #clock-cells = <0>;
+        compatible = "fixed-factor-clock";
What is this example about? Not related at all. Provide real example.



Best regards,
Krzysztof


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