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Message-ID: <20191011150339.GA16245@bogus>
Date: Fri, 11 Oct 2019 10:03:39 -0500
From: Rob Herring <robh@...nel.org>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Sudeep Holla <sudeep.holla@....com>,
Mark Rutland <mark.rutland@....com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Kevin Hilman <khilman@...libre.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Ulf Hansson <ulf.hansson@...aro.org>,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
linux-samsung-soc@...r.kernel.org, etnaviv@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
linux-media@...r.kernel.org, linux-pm@...r.kernel.org,
linux-pci@...r.kernel.org, linux-amlogic@...ts.infradead.org,
bcm-kernel-feedback-list@...adcom.com,
linux-rpi-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 1/3] dt-bindings: power: Convert Generic Power Domain
bindings to json-schema
On Wed, Oct 02, 2019 at 06:06:30PM +0200, Krzysztof Kozlowski wrote:
> Convert Generic Power Domain bindings to DT schema format using
> json-schema. The consumer bindings are split to separate file.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
>
> ---
>
> Changes since v1:
> 1. Select all nodes for consumers,
> 2. Remove from consumers duplicated properties with dt-schema,
> 3. Fix power domain pattern,
> 4. Remove unneeded types.
> ---
> .../devicetree/bindings/arm/arm,scmi.txt | 2 +-
> .../devicetree/bindings/arm/arm,scpi.txt | 2 +-
> .../bindings/arm/freescale/fsl,scu.txt | 2 +-
> .../bindings/clock/clk-exynos-audss.txt | 2 +-
> .../bindings/clock/exynos5433-clock.txt | 4 +-
> .../bindings/clock/renesas,cpg-mssr.txt | 2 +-
> .../clock/renesas,r8a7778-cpg-clocks.txt | 2 +-
> .../clock/renesas,r8a7779-cpg-clocks.txt | 2 +-
> .../clock/renesas,rcar-gen2-cpg-clocks.txt | 2 +-
> .../bindings/clock/renesas,rz-cpg-clocks.txt | 2 +-
> .../bindings/clock/ti/davinci/psc.txt | 2 +-
> .../bindings/display/etnaviv/etnaviv-drm.txt | 2 +-
> .../devicetree/bindings/display/msm/dpu.txt | 2 +-
> .../devicetree/bindings/display/msm/mdp5.txt | 2 +-
> .../devicetree/bindings/dsp/fsl,dsp.yaml | 2 +-
> .../firmware/nvidia,tegra186-bpmp.txt | 2 +-
> .../bindings/media/imx7-mipi-csi2.txt | 3 +-
> .../bindings/media/mediatek-jpeg-decoder.txt | 3 +-
> .../bindings/media/mediatek-mdp.txt | 3 +-
> .../bindings/opp/qcom-nvmem-cpufreq.txt | 2 +-
> .../devicetree/bindings/pci/pci-keystone.txt | 2 +-
> .../bindings/phy/ti,phy-am654-serdes.txt | 2 +-
> .../bindings/power/amlogic,meson-gx-pwrc.txt | 2 +-
> .../devicetree/bindings/power/fsl,imx-gpc.txt | 2 +-
> .../bindings/power/fsl,imx-gpcv2.txt | 2 +-
> .../power/power-domain-consumers.yaml | 105 +++++++++
> .../bindings/power/power-domain.yaml | 134 ++++++++++++
> .../bindings/power/power_domain.txt | 205 ------------------
> .../devicetree/bindings/power/qcom,rpmpd.txt | 2 +-
> .../bindings/power/renesas,rcar-sysc.txt | 2 +-
> .../bindings/power/renesas,sysc-rmobile.txt | 2 +-
> .../bindings/power/xlnx,zynqmp-genpd.txt | 2 +-
> .../bindings/soc/bcm/brcm,bcm2835-pm.txt | 2 +-
> .../bindings/soc/mediatek/scpsys.txt | 2 +-
> .../bindings/soc/ti/sci-pm-domain.txt | 2 +-
> .../bindings/usb/nvidia,tegra124-xusb.txt | 4 +-
> MAINTAINERS | 2 +-
> 37 files changed, 278 insertions(+), 241 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/power/power-domain-consumers.yaml
> create mode 100644 Documentation/devicetree/bindings/power/power-domain.yaml
> delete mode 100644 Documentation/devicetree/bindings/power/power_domain.txt
> diff --git a/Documentation/devicetree/bindings/power/power-domain-consumers.yaml b/Documentation/devicetree/bindings/power/power-domain-consumers.yaml
> new file mode 100644
> index 000000000000..f65078e1260e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/power-domain-consumers.yaml
> @@ -0,0 +1,105 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/power-domain-consumers.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: PM domain consumers
> +
> +maintainers:
> + - Rafael J. Wysocki <rjw@...ysocki.net>
> + - Kevin Hilman <khilman@...nel.org>
> + - Ulf Hansson <ulf.hansson@...aro.org>
> +
> +description: |+
> + See power-domain.yaml
> +
> +select: true
> +
> +allOf:
> + - $ref: /schemas/power-domain/power-domain-consumer.yaml
I don't like this split. We should move the contents of this file to the
above file.
I checked the authorship of the relevant lines and they are all except
for a small number of lines from Linaro authors (Viresh and Ulf). I have
permission from Linaro to dual license Linaro authored bindings, so it's
not a problem to move this. I can do that and you can just drop this file.
> +
> +properties:
> + required-opps:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + This contains phandle to an OPP node in another device's OPP table.
> + It may contain an array of phandles, where each phandle points to an OPP
> + of a different device. It should not contain multiple phandles to the OPP
> + nodes in the same OPP table. This specifies the minimum required OPP
> + of the device(s), whose OPP's phandle is present in this property,
> + for the functioning of the current device at the current OPP (where this
> + property is present).
> +
> +examples:
> + - |
> + leaky-device@...50000 {
> + compatible = "foo,i-leak-current";
> + reg = <0x12350000 0x1000>;
> + power-domains = <&power 0>;
> + power-domain-names = "io";
> + };
> +
> + leaky-device@...51000 {
> + compatible = "foo,i-leak-current";
> + reg = <0x12351000 0x1000>;
> + power-domains = <&power 0>, <&power 1> ;
> + power-domain-names = "io", "clk";
> + };
> +
> + // The first example above defines a typical PM domain consumer device, which is
> + // located inside a PM domain with index 0 of a power controller represented by a
> + // node with the label "power".
> + // In the second example the consumer device are partitioned across two PM domains,
> + // the first with index 0 and the second with index 1, of a power controller that
> + // is represented by a node with the label "power".
> +
> + - |
> + // Example with OPP table for domain provider that provides two domains:
> +
> + domain0_opp_table: opp-table0 {
> + compatible = "operating-points-v2";
> +
> + domain0_opp_0: opp-1000000000 {
> + opp-hz = /bits/ 64 <1000000000>;
> + opp-microvolt = <975000 970000 985000>;
> + };
> + domain0_opp_1: opp-1100000000 {
> + opp-hz = /bits/ 64 <1100000000>;
> + opp-microvolt = <1000000 980000 1010000>;
> + };
> + };
> +
> + domain1_opp_table: opp-table1 {
> + compatible = "operating-points-v2";
> +
> + domain1_opp_0: opp-1200000000 {
> + opp-hz = /bits/ 64 <1200000000>;
> + opp-microvolt = <975000 970000 985000>;
> + };
> + domain1_opp_1: opp-1300000000 {
> + opp-hz = /bits/ 64 <1300000000>;
> + opp-microvolt = <1000000 980000 1010000>;
> + };
> + };
> +
> + power: power-controller@...40000 {
> + compatible = "foo,power-controller";
> + reg = <0x12340000 0x1000>;
> + #power-domain-cells = <1>;
> + operating-points-v2 = <&domain0_opp_table>, <&domain1_opp_table>;
> + };
> +
> + leaky-device0@...50000 {
> + compatible = "foo,i-leak-current";
> + reg = <0x12350000 0x1000>;
> + power-domains = <&power 0>;
> + required-opps = <&domain0_opp_0>;
> + };
> +
> + leaky-device1@...50000 {
> + compatible = "foo,i-leak-current";
> + reg = <0x12350000 0x1000>;
> + power-domains = <&power 1>;
> + required-opps = <&domain1_opp_1>;
> + };
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