Re: [PATCH 08/12] dt-bindings: devfreq: add compatible for mt8183 cci devfreq

Chanwoo Choi
2020-05-28T07:32:07Z

Hi,

On 5/20/20 12:43 PM, Andrew-sh.Cheng wrote:
> This adds dt-binding documentation of cci devfreq
> for Mediatek MT8183 SoC platform.
>
> Signed-off-by: Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
> ---
> .../devicetree/bindings/devfreq/mt8183-cci.yaml | 51 ++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml
>
> diff --git a/Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml b/Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml
> new file mode 100644
> index 000000000000..a7341fd94097
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: https://protect2.fireeye.com/url?k=33f1f15d-6e23ea05-33f07a12-0cc47a31c8b4-91b3f8aeecce95dc&q=1&u=http%3A%2F%2Fdevicetree.org%2Fschemas%2Fdevfreq%2Fmt8183-cci.yaml%23
> +$schema: https://protect2.fireeye.com/url?k=fc7d9089-a1af8bd1-fc7c1bc6-0cc47a31c8b4-b46f5afc59faf86d&q=1&u=http%3A%2F%2Fdevicetree.org%2Fmeta-schemas%2Fcore.yaml%23
> +
> +title: CCI_DEVFREQ driver for MT8183.
> +
> +maintainers:
> + - Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
> +
> +description: |
> + This module is used to create CCI DEVFREQ.
> + The performance will depend on both CCI frequency and CPU frequency.
> + For MT8183, CCI co-buck with Little core.
> + Contain CCI opp table for voltage and frequency scaling.
> +
> +properties:
> + compatible:
> + const: "mediatek,mt8183-cci"
> +
> + clocks:
> + maxItems: 1
> +
> + clock-names:
> + const: "cci"
> +
> + operating-points-v2: true
> + opp-table: true
> +
> + proc-supply:
> + description:
> + Phandle of the regulator that provides the supply voltage.
> +
> +required:
> + - compatible
> + - clocks
> + - clock-names
> + - proc-supply
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8183-clk.h>
> + cci: cci {
> + compatible = "mediatek,mt8183-cci";
> + clocks = <&apmixedsys CLK_APMIXED_CCIPLL>;
> + clock-names = "cci";
> + operating-points-v2 = <&cci_opp>;
> + proc-supply = <&mt6358_vproc12_reg>;
> + };
> +
>

I recommend that add the more detailed example
with OPP table with CPU node.

--
Best Regards,
Chanwoo Choi
Samsung Electronics