[PATCH v2 1/3] dt-bindings: amlogic: Add Internal Clock Measurer bindings

[PATCH v2 1/3] dt-bindings: amlogic: Add Internal Clock Measurer bindings

[Neil Armstrong]

The Amlogic Meson GX SoCs embeds a clock measurer IP to measure the internal
clock paths frequencies.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 .../bindings/soc/amlogic/clk-measure.txt          | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt

diff --git a/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt b/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
new file mode 100644
index 000000000000..ba9183a42032
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
@@ -0,0 +1,15 @@
+Amlogic Internal Clock Measurer
+===============================
+
+The Amlogic SoCs contains an IP to measure the internal clocks.
+The precision is multiple of MHz, useful to debug the clock states.
+
+Required properties:
+- compatible: Shall contain "amlogic,meson-gx-clk-measure"
+- reg: base address and size of the Clock Measurer register space.
+
+Example:
+	clock-measure@8758 {
+		compatible = "amlogic,meson-gx-clk-measure";
+		reg = <0x0 0x8758 0x0 0x10>;
+	};
-- 
2.19.1

Re: [PATCH v2 1/3] dt-bindings: amlogic: Add Internal Clock Measurer bindings

[Rob Herring]

On Wed, 14 Nov 2018 14:16:25 +0100, Neil Armstrong wrote:
> The Amlogic Meson GX SoCs embeds a clock measurer IP to measure the internal
> clock paths frequencies.
> 
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> ---
>  .../bindings/soc/amlogic/clk-measure.txt          | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCH v2 1/3] dt-bindings: amlogic: Add Internal Clock Measurer bindings

[Martin Blumenstingl]

Hi Neil,

On Wed, Nov 14, 2018 at 2:16 PM Neil Armstrong <narmstrong@baylibre.com> wrote:
>
> The Amlogic Meson GX SoCs embeds a clock measurer IP to measure the internal
> clock paths frequencies.
I would skip the "GX" in that sentence: there's a similar (identical?)
clock measurer in Meson6, Meson8, Meson8b and Meson8m2 as well

>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
with the comment above and below:
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

> ---
>  .../bindings/soc/amlogic/clk-measure.txt          | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
>
> diff --git a/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt b/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
> new file mode 100644
> index 000000000000..ba9183a42032
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
> @@ -0,0 +1,15 @@
> +Amlogic Internal Clock Measurer
> +===============================
> +
> +The Amlogic SoCs contains an IP to measure the internal clocks.
> +The precision is multiple of MHz, useful to debug the clock states.
> +
> +Required properties:
> +- compatible: Shall contain "amlogic,meson-gx-clk-measure"
can you please add "amlogic,meson8-clk-measure" and
"amlogic,meson8b-clk-measure" as well?
(I will provide a patch on top of yours to add Meson8 and Meson8b support)


Regards
Martin