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Message-ID: <8f979080-0e38-cd5d-e668-1e090b18e345@microchip.com>
Date: Tue, 9 May 2023 05:15:09 +0000
From: <Claudiu.Beznea@...rochip.com>
To: <krzysztof.kozlowski@...aro.org>, <mturquette@...libre.com>,
<sboyd@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <Nicolas.Ferre@...rochip.com>,
<alexandre.belloni@...tlin.com>
CC: <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/5] dt-bindings: clocks: atmel,at91rm9200-pmc: convert
to yaml
On 08.05.2023 19:26, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> On 08/05/2023 12:47, Claudiu Beznea wrote:
>> Convert Atmel PMC documentation to yaml.
>
> Please mention the changes against original binding. At least
> clock-names look different, maybe more.
>
>>
>> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
>> ---
>> .../devicetree/bindings/clock/at91-clock.txt | 28 ----
>> .../bindings/clock/atmel,at91rm9200-pmc.yaml | 154 ++++++++++++++++++
>> 2 files changed, 154 insertions(+), 28 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt
>> index 13f45db3b66d..57394785d3b0 100644
>> --- a/Documentation/devicetree/bindings/clock/at91-clock.txt
>> +++ b/Documentation/devicetree/bindings/clock/at91-clock.txt
>> @@ -28,31 +28,3 @@ For example:
>> #clock-cells = <0>;
>> };
>>
>> -Power Management Controller (PMC):
>> -
>> -Required properties:
>> -- compatible : shall be "atmel,<chip>-pmc", "syscon" or
>> - "microchip,sam9x60-pmc"
>> - <chip> can be: at91rm9200, at91sam9260, at91sam9261,
>> - at91sam9263, at91sam9g45, at91sam9n12, at91sam9rl, at91sam9g15,
>> - at91sam9g25, at91sam9g35, at91sam9x25, at91sam9x35, at91sam9x5,
>> - sama5d2, sama5d3 or sama5d4.
>> -- #clock-cells : from common clock binding; shall be set to 2. The first entry
>> - is the type of the clock (core, system, peripheral or generated) and the
>> - second entry its index as provided by the datasheet
>> -- clocks : Must contain an entry for each entry in clock-names.
>> -- clock-names: Must include the following entries: "slow_clk", "main_xtal"
>> -
>> -Optional properties:
>> -- atmel,osc-bypass : boolean property. Set this when a clock signal is directly
>> - provided on XIN.
>> -
>> -For example:
>> - pmc: pmc@...18000 {
>> - compatible = "atmel,sama5d4-pmc", "syscon";
>> - reg = <0xf0018000 0x120>;
>> - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>> - #clock-cells = <2>;
>> - clocks = <&clk32k>, <&main_xtal>;
>> - clock-names = "slow_clk", "main_xtal";
>> - };
>> diff --git a/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
>> new file mode 100644
>> index 000000000000..58b702520600
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
>> @@ -0,0 +1,154 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/clock/atmel,at91rm9200-pmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Atmel Power Management Controller (PMC)
>> +
>> +maintainers:
>> + - Claudiu Beznea <claudiu.beznea@...rochip.com>
>> +
>> +description:
>> + The power management controller optimizes power consumption by controlling all
>> + system and user peripheral clocks. The PMC enables/disables the clock inputs
>> + to many of the peripherals and to the processor.
>> +
>> +properties:
>> + compatible:
>> + oneOf:
>> + - items:
>> + - const: atmel,at91sam9260-pmc
>> + - const: syscon
>
> No improvements here. Why this is part of this group not the one at the
> end? I already talked about this.
I missed it. It will be handled it in the next version.
>
>> + - items:
>> + - enum:
>> + - atmel,at91sam9g15-pmc
>> + - atmel,at91sam9g20-pmc
>> + - atmel,at91sam9g25-pmc
>> + - atmel,at91sam9g35-pmc
>> + - atmel,at91sam9x25-pmc
>> + - atmel,at91sam9x35-pmc
>> + - enum:
>> + - atmel,at91sam9260-pmc
>> + - atmel,at91sam9x5-pmc
>> + - const: syscon
>> + - items:
>> + - enum:
>> + - atmel,at91rm9200-pmc
>> + - atmel,at91sam9g45-pmc
>> + - atmel,at91sam9n12-pmc
>> + - atmel,at91sam9rl-pmc
>> + - atmel,sama5d2-pmc
>> + - atmel,sama5d3-pmc
>> + - atmel,sama5d4-pmc
>> + - microchip,sam9x60-pmc
>> + - microchip,sama7g5-pmc
>> + - const: syscon
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + "#clock-cells":
>> + description: |
>> + - 1st cell is the clock type, one of PMC_TYPE_CORE, PMC_TYPE_SYSTEM,
>> + PMC_TYPE_PERIPHERAL, PMC_TYPE_GCK, PMC_TYPE_PROGRAMMABLE (as defined
>> + in <dt-bindings/clock/at91.h>)
>> + - 2nd cell is the clock identifier as defined in <dt-bindings/clock/at91.h
>> + (for core clocks) or as defined in datasheet (for system, peripheral,
>> + gck and programmable clocks).
>> + const: 2
>> +
>> + clocks:
>> + minItems: 2
>> + maxItems: 3
>> +
>> + clock-names:
>> + minItems: 2
>> + maxItems: 3
>> +
>> + atmel,osc-bypass:
>> + description: set when a clock signal is directly provided on XIN
>> + type: boolean
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - interrupts
>> + - "#clock-cells"
>> + - clocks
>> + - clock-names
>> +
>> +allOf:
>> + - if:
>> + properties:
>> + compatible:
>> + contains:
>> + enum:
>> + - microchip,sam9x60-pmc
>> + - microchip,sama7g5-pmc
>> + then:
>> + properties:
>> + clocks:
>> + minItems: 3
>> + maxItems: 3
>> + clock-names:
>> + items:
>> + - const: td_slck
>> + - const: md_slck
>> + - const: main_xtal
>> +
>> + - if:
>> + properties:
>> + compatible:
>> + contains:
>> + enum:
>> + - atmel,at91rm9200-pmc
>> + - atmel,at91sam9260-pmc
>> + - atmel,at91sam9g20-pmc
>> + then:
>> + properties:
>> + clocks:
>> + minItems: 2
>> + maxItems: 2
>> + clock-names:
>> + items:
>> + - const: slow_xtal
>> + - const: main_xtal
>> +
>> + - if:
>> + properties:
>> + compatible:
>> + contains:
>> + enum:
>> + - atmel,sama5d4-pmc
>> + - atmel,sama5d3-pmc
>> + - atmel,sama5d2-pmc
>
> Keep similar order as in compatibles list, e.g. alphanumeric.
>
> Best regards,
> Krzysztof
>
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