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Date: Mon, 28 Sep 2020 18:59:00 +0800
From: "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
CC: Wei Xu <xuwei5@...ilicon.com>, Rob Herring <robh+dt@...nel.org>,
devicetree <devicetree@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
Kefeng Wang <wangkefeng.wang@...wei.com>,
Libin <huawei.libin@...wei.com>
Subject: Re: [PATCH v3 08/21] dt-bindings: arm: hisilicon: convert system
controller bindings to json-schema
On 2020/9/28 17:44, Jonathan Cameron wrote:
> On Sun, 27 Sep 2020 14:21:16 +0800
> Zhen Lei <thunder.leizhen@...wei.com> wrote:
>
>> Convert the Hisilicon system controller and its variants binding to DT
>> schema format using json-schema. All of them are grouped into one yaml
>> file, to help users understand differences and avoid repeated
>> descriptions.
>>
>> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
>
> Hi, one quick comment on indentation inline. Having received some fixes
> for this from Rob recently it was still fresh in my mind!
>
>> ---
>> .../controller/hi3620/hisilicon,hi6220-sysctrl.txt | 19 ----
>> .../controller/hipxx/hisilicon,hip01-sysctrl.txt | 19 ----
>> .../arm/hisilicon/controller/hisilicon,sysctrl.txt | 25 -----
>> .../hisilicon/controller/hisilicon,sysctrl.yaml | 115 +++++++++++++++++++++
>> .../bindings/arm/hisilicon/hi3519-sysctrl.txt | 14 ---
>> 5 files changed, 115 insertions(+), 77 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hi3620/hisilicon,hi6220-sysctrl.txt
>> delete mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hipxx/hisilicon,hip01-sysctrl.txt
>> delete mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,sysctrl.txt
>> create mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,sysctrl.yaml
>> delete mode 100644 Documentation/devicetree/bindings/arm/hisilicon/hi3519-sysctrl.txt
>>
>
> ...
>
>> diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,sysctrl.yaml b/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,sysctrl.yaml
>> new file mode 100644
>> index 000000000000000..b65807574d92f95
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,sysctrl.yaml
>> @@ -0,0 +1,115 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/arm/hisilicon/controller/hisilicon,sysctrl.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Hisilicon system controller
>> +
>> +maintainers:
>> + - Wei Xu <xuwei5@...ilicon.com>
>> +
>> +description: |
>> + The Hisilicon system controller is used on many Hisilicon boards, it can be
>> + used to assist the slave core startup, reboot the system, etc.
>> +
>> + There are some variants of the Hisilicon system controller, such as HiP01,
>> + Hi3519, Hi6220 system controller, each of them is mostly compatible with the
>> + Hisilicon system controller, but some same registers located at different
>> + offset. In addition, the HiP01 system controller has some specific control
>> + registers for HIP01 SoC family, such as slave core boot.
>> +
>> + The compatible names of each system controller are as follows:
>> + Hisilicon system controller --> hisilicon,sysctrl
>> + HiP01 system controller --> hisilicon,hip01-sysctrl
>> + Hi6220 system controller --> hisilicon,hi6220-sysctrl
>> + Hi3519 system controller --> hisilicon,hi3519-sysctrl
>> +
>> +allOf:
>> + - if:
>> + properties:
>> + compatible:
>> + contains:
>> + const: hisilicon,hi6220-sysctrl
>> + then:
>> + required:
>> + - '#clock-cells'
>> +
>> +properties:
>> + compatible:
>> + oneOf:
>> + - items:
>> + - const: hisilicon,sysctrl
>
> I believe indentation is wrt to the keyword not the -
>
> https://lore.kernel.org/lkml/20200812203618.2656699-1-robh@kernel.org/
>
> so should be
> - items:
> - const: hisilicon,sysctrl.
OK, I will correct it.
>
>> + - items:
>> + - const: hisilicon,sysctrl
>> + - const: syscon
>> + - items:
>> + - const: hisilicon,hip01-sysctrl
>> + - const: hisilicon,sysctrl
>> + - items:
>> + - const: hisilicon,hi6220-sysctrl
>> + - const: syscon
>> + - items:
>> + - const: hisilicon,hi3519-sysctrl
>> + - const: syscon
>> +
>> + reg:
>> + description: Register address and size
>> + maxItems: 1
>> +
>> + smp-offset:
>> + description: |
>> + offset in sysctrl for notifying slave cpu booting
>> + cpu 1, reg;
>> + cpu 2, reg + 0x4;
>> + cpu 3, reg + 0x8;
>> + If reg value is not zero, cpun exit wfi and go
>> + $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> + resume-offset:
>> + description: offset in sysctrl for notifying cpu0 when resume
>> + $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> + reboot-offset:
>> + description: offset in sysctrl for system reboot
>> + $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> + '#clock-cells':
>> + description: the number of cells occupied by one clock ID.
>> + const: 1
>> +
>> +required:
>> + - compatible
>> + - reg
>> +
>> +examples:
>> + - |
>> + /* Hisilicon system controller */
>> + system-controller@...02000 {
>> + compatible = "hisilicon,sysctrl";
>> + reg = <0xfc802000 0x1000>;
>> + smp-offset = <0x31c>;
>> + resume-offset = <0x308>;
>> + reboot-offset = <0x4>;
>> + };
>> +
>> + /* HiP01 system controller */
>> + system-controller@...00000 {
>> + compatible = "hisilicon,hip01-sysctrl", "hisilicon,sysctrl";
>> + reg = <0x10000000 0x1000>;
>> + reboot-offset = <0x4>;
>> + };
>> +
>> + /* Hi6220 system controller */
>> + system-controller@...30000 {
>> + compatible = "hisilicon,hi6220-sysctrl", "syscon";
>> + reg = <0xf7030000 0x2000>;
>> + #clock-cells = <1>;
>> + };
>> +
>> + /* Hi3519 system controller */
>> + system-controller@...10000 {
>> + compatible = "hisilicon,hi3519-sysctrl", "syscon";
>> + reg = <0x12010000 0x1000>;
>> + };
>> +...
>> diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hi3519-sysctrl.txt b/Documentation/devicetree/bindings/arm/hisilicon/hi3519-sysctrl.txt
>> deleted file mode 100644
>> index 8defacc44dd5b9e..000000000000000
>> --- a/Documentation/devicetree/bindings/arm/hisilicon/hi3519-sysctrl.txt
>> +++ /dev/null
>> @@ -1,14 +0,0 @@
>> -* Hisilicon Hi3519 System Controller Block
>> -
>> -This bindings use the following binding:
>> -Documentation/devicetree/bindings/mfd/syscon.yaml
>> -
>> -Required properties:
>> -- compatible: "hisilicon,hi3519-sysctrl".
>> -- reg: the register region of this block
>> -
>> -Examples:
>> -sysctrl: system-controller@...10000 {
>> - compatible = "hisilicon,hi3519-sysctrl", "syscon";
>> - reg = <0x12010000 0x1000>;
>> -};
>
>
>
> .
>
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