linux-toradex.git/Documentation/devicetree/bindings/opp/opp-v2-base.yaml, branch master

dt-bindings: opp: drop maxItems from inner items

2024-03-11T05:09:24+00:00

With recent changes within matrix dimensions calculation,
dropping maxItems: 1 provides a warning-free run.

Fixes warning such as:
arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dtb: opp-table: opp-200000000:opp-hz:0: [200000000, 0, 0, 150000000, 0, 0, 0, 0, 300000000] is too long

Fixes: 3cb16ad69bef ("dt-bindings: opp: accept array of frequencies")
Suggested-by: Rob Herring 
Signed-off-by: David Heidelberg 
Reviewed-by: Dhruva Gole 
Acked-by: Rob Herring 
Signed-off-by: Viresh Kumar

dt-bindings: opp: Increase maxItems for opp-hz property

2023-07-25T04:10:57+00:00

Current limit of 16 will be exhausted by platforms specifying the frequency
for 9 clocks using opp-hz, like Qcom SDM845 SoC. For instance, specifying
the frequency for 9 clocks with 64bit specifier as below would consume
(9 * 2 = 18) items.

	opp-50000000 {
		opp-hz = /bits/ 64 <50000000>,
			 /bits/ 64 <0>,
			 /bits/ 64 <0>,
			 /bits/ 64 <37500000>,
			 /bits/ 64 <0>,
			 /bits/ 64 <0>,
			 /bits/ 64 <0>,
			 /bits/ 64 <0>,
			 /bits/ 64 <75000000>;
	};

So let's increase the limit to 32 which should be enough for most platforms
(hopefully).

Signed-off-by: Manivannan Sadhasivam 
Acked-by: Rob Herring 
Signed-off-by: Viresh Kumar

dt-bindings: drop redundant part of title of shared bindings

2022-12-16T17:41:49+00:00

The Devicetree bindings document does not have to say in the title that
it is a "binding", but instead just describe the hardware.  For shared
(re-usable) schemas, name them all as "common properties".

Signed-off-by: Krzysztof Kozlowski 
Acked-by: Guenter Roeck  # watchdog
Acked-by: Alexandre Belloni 
Acked-by: Jonathan Cameron  # IIO
Acked-by: Miquel Raynal 
Acked-by: Ulf Hansson  # MMC
Acked-by: Stephen Boyd  # clk
Acked-by: Vinod Koul  # dma
Acked-by: Mark Brown 
Acked-by: Hans Verkuil  # media
Acked-by: Sebastian Reichel  # power
Acked-by: Viresh Kumar  # opp
Link: https://lore.kernel.org/r/20221216163815.522628-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring

dt-bindings: opp: Fix named microwatt property

2022-11-04T05:29:01+00:00

The named microwatt- property should look exactly like microvolt
and microamp properties. There were some differences, fix them.

Tested-by: James Calligeros 
Signed-off-by: Viresh Kumar

dt-bindings: opp: Fix usage of current in microwatt property

2022-11-04T05:28:45+00:00

The bindings mentions "current" instead of "power". Fix it.

Tested-by: James Calligeros 
Signed-off-by: Viresh Kumar

dt-bindings: opp: accept array of frequencies

2022-07-08T05:57:51+00:00

Devices might need to control several clocks when scaling the frequency
and voltage.  Allow passing array of clock frequencies, similarly to the
voltages.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Bjorn Andersson 
Acked-by: Rob Herring 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Viresh Kumar

Merge tag 'pm-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2022-03-29T18:06:55+00:00

Pull more power management updates from Rafael Wysocki:
 "These update ARM cpufreq drivers, the OPP (Operating Performance
  Points) library and the power management documentation.

  Specifics:

   - Add per core DVFS support for QCom SoC (Bjorn Andersson), convert
     to yaml binding (Manivannan Sadhasivam) and various other fixes to
     the QCom drivers (Luca Weiss).

   - Add OPP table for imx7s SoC (Denys Drozdov) and minor fixes (Stefan
     Agner).

   - Fix CPPC driver's freq/performance conversions (Pierre Gondois).

   - Minor generic cleanups (Yury Norov).

   - Introduce opp-microwatt property to the OPP core, bindings, etc
     (Lukasz Luba).

   - Convert DT bindings to schema format and various related fixes
     (Yassine Oudjana).

   - Expose OPP's OF node in debugfs (Viresh Kumar).

   - Add Intel uncore frequency scaling documentation file to its
     MAINTAINERS entry (Srinivas Pandruvada).

   - Clean up the AMD P-state driver documentation (Jan Engelhardt)"

* tag 'pm-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
  Documentation: amd-pstate: grammar and sentence structure updates
  dt-bindings: cpufreq: cpufreq-qcom-hw: Convert to YAML bindings
  dt-bindings: dvfs: Use MediaTek CPUFREQ HW as an example
  Documentation: EM: Describe new registration method using DT
  OPP: Add support of "opp-microwatt" for EM registration
  PM: EM: add macro to set .active_power() callback conditionally
  OPP: Add "opp-microwatt" supporting code
  dt-bindings: opp: Add "opp-microwatt" entry in the OPP
  MAINTAINERS: Add additional file to uncore frequency control
  cpufreq: blocklist Qualcomm sc8280xp and sa8540p in cpufreq-dt-platdev
  cpufreq: qcom-hw: Add support for per-core-dcvs
  dt-bindings: power: avs: qcom,cpr: Convert to DT schema
  arm64: dts: qcom: qcs404: Rename CPU and CPR OPP tables
  arm64: dts: qcom: msm8996: Rename cluster OPP tables
  dt-bindings: opp: Convert qcom-nvmem-cpufreq to DT schema
  dt-bindings: opp: qcom-opp: Convert to DT schema
  arm64: dts: qcom: msm8996-mtp: Add msm8996 compatible
  dt-bindings: arm: qcom: Add msm8996 and apq8096 compatibles
  opp: Expose of-node's name in debugfs
  cpufreq: CPPC: Fix performance/frequency conversion
  ...

dt-bindings: opp: Add "opp-microwatt" entry in the OPP

2022-03-03T04:05:04+00:00

Add new entry for the OPP which provides information about power
expressed in micro-Watts. It is useful for the Energy Model framework.

Signed-off-by: Lukasz Luba 
Reviewed-by: Rob Herring 
Signed-off-by: Viresh Kumar

dt-bindings: Improve phandle-array schemas

2022-02-04T15:43:42+00:00

The 'phandle-array' type is a bit ambiguous. It can be either just an
array of phandles or an array of phandles plus args. Many schemas for
phandle-array properties aren't clear in the schema which case applies
though the description usually describes it.

The array of phandles case boils down to needing:

items:
  maxItems: 1

The phandle plus args cases should typically take this form:

items:
  - items:
      - description: A phandle
      - description: 1st arg cell
      - description: 2nd arg cell

With this change, some examples need updating so that the bracketing of
property values matches the schema.

Signed-off-by: Rob Herring 
Acked-by: Viresh Kumar 
Acked-by: Vinod Koul 
Acked-by: Ulf Hansson 
Acked-by: Georgi Djakov 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Mark Brown 
Acked-by: Krzysztof Kozlowski 
Acked-by: Stephen Boyd 
Acked-by: Greg Kroah-Hartman 
Acked-by: Marc Kleine-Budde 
Link: https://lore.kernel.org/r/20220119015038.2433585-1-robh@kernel.org

dt-bindings: opp: Allow multi-worded OPP entry name

2021-11-02T03:55:05+00:00

Not all OPP entries fit into a single word. In particular NVIDIA Tegra OPP
tables use multi-word names. Allow OPP entry to have multi-worded name
separated by hyphen. This silences DT checker warnings about wrong naming
scheme.

Reviewed-by: David Heidelberg 
Signed-off-by: Dmitry Osipenko 
Signed-off-by: Viresh Kumar