On 24/03/2022 10:38, Jia-Wei Chang wrote: >> >>> >>> diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq- >>> mediatek.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq- >>> mediatek.yaml >>> new file mode 100644 >>> index 000000000000..584946eb3790 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq- >>> mediatek.yaml >>> @@ -0,0 +1,131 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: >>> https://urldefense.com/v3/__http://devicetree.org/schemas/cpufreq/cpufreq-mediatek.yaml*__;Iw!!CTRNKA9wMg0ARbw!xbKG4TgD0MRpMLyGJVBZEGpZFrNOclrcxOCx_APKo5Nmg8nF2x5PcBdE0unvL2NdpChkMA$ >>> >>> +$schema: >>> https://urldefense.com/v3/__http://devicetree.org/meta-schemas/core.yaml*__;Iw!!CTRNKA9wMg0ARbw!xbKG4TgD0MRpMLyGJVBZEGpZFrNOclrcxOCx_APKo5Nmg8nF2x5PcBdE0unvL2O8T_oxCQ$ >>> >>> + >>> +title: Mediatek CPUFREQ driver Device Tree Bindings >> >> Please remove "driver Device Tree Bindings" because the title should >> describe the hardware. Therefore it could be something like "Mediatek >> SoC CPU frequency and voltage scaling". > > Thanks for your suggestion of title. > Or should I use the origin title "Binding for MediaTek's CPUFreq > driver"? Mediatek CPUFREQ or Mediatek CPU frequency scaling > >> >> How is it related to cpufreq-mediatek-hw.yaml? The names/title look >> unfortunately too similar. > > No, mediatek-cpufreq is performing in kernel driver rather than on > hardware. > On the other hand, mediatek-cpufreq-hw is performing on hardware. > That's why "hw" is present in its name. Unfortunately, I do not get it. The bindings are only about hardware, so how bindings could be about CPU frequency scaling not in hardware? > >> >> In general this does not look like proper bindings (see also below >> lack >> of compatible). Bindings describe the hardware, so what is exactly >> the >> hardware here? > > Except for SoC, there's no requirement of hardware binding for > mediatek-cpufreq. > mediatek-cpufreq recognizes the compatible of Mediatek SoC while > probing. What is the hardware here? If there is no requirement for bindings for mediate-cpufreq, why do we have this patch here? > >> >>> + >>> +maintainers: >>> + - Jia-Wei Chang <jia-wei.chang@xxxxxxxxxxxx> >>> + >>> +description: | >>> + CPUFREQ is used for scaling clock frequency of CPUs. >>> + The module cooperates with CCI DEVFREQ to manage frequency for >>> some Mediatek >>> + SoCs. >>> + >>> +properties: >> >> How is this schema going to be applied? I don't see here select >> neither >> compatible. > > As mentioned above, only compatible of SoC is required for mediatek- > cpufreq. It does not answer my questions. How the schema is going to be applied? Best regards, Krzysztof
