linux-kernel - Re: [PATCH RESEND v2 1/4] dt-bindings: power: add Amlogic secure power domains bindings

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Date:   Mon, 28 Oct 2019 19:11:13 +0800
From:   Jianxin Pan <jianxin.pan@...ogic.com>
To:     Rob Herring <robh@...nel.org>
CC:     Kevin Hilman <khilman@...libre.com>,
        "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, Jian Hu <jian.hu@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        Xingyu Chen <xingyu.chen@...ogic.com>
Subject: Re: [PATCH RESEND v2 1/4] dt-bindings: power: add Amlogic secure
 power domains bindings

Hi Rob,

On 2019/10/26 4:19, Rob Herring wrote:
> On Wed, Oct 16, 2019 at 6:26 AM Jianxin Pan <jianxin.pan@...ogic.com> wrote:
>>
>> Hi Rob,
>>
>> On 2019/10/15 1:39, Rob Herring wrote:
>>> On Thu, Oct 10, 2019 at 04:21:15AM -0400, Jianxin Pan wrote:
>>>> Add the bindings for the Amlogic Secure power domains, controlling the
>>>> secure power domains.
>>>>
>>>> The bindings targets the Amlogic A1 and C1 compatible SoCs, in which the
>>>> power domain registers are in secure world.
>>>>
>>>> Signed-off-by: Jianxin Pan <jianxin.pan@...ogic.com>
>>>> ---
>>>>  .../bindings/power/amlogic,meson-sec-pwrc.yaml     | 42 ++++++++++++++++++++++
>>>>  include/dt-bindings/power/meson-a1-power.h         | 32 +++++++++++++++++
>>>>  2 files changed, 74 insertions(+)
>>>>  create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml
>>>> +
>>>> +  secure-monitor:
>>>> +    description: phandle to the secure-monitor node
>>>> +    $ref: /schemas/types.yaml#/definitions/phandle
>>>
>>> Why not just a child node of this node?
>>>
>> Thanks for the review.
>>
>> I followed the style of the previous series of meson：
>>
>>   46         efuse: efuse {
>>   47                 compatible = "amlogic,meson-gxbb-efuse";
>>   48                 clocks = <&clkc CLKID_EFUSE>;
>>   49                 #address-cells = <1>;
>>   50                 #size-cells = <1>;
>>   51                 read-only;
>>   52                 secure-monitor = <&sm>;
>>   53         };
> 
> Looks like that was not reviewed by me and is only in linux-next.
> Please make functions exposed by secure world a child of the secure
> firmware node.
> 
> Really for power domains, you only need to add a '#power-domain-cells'
> property to the secure monitor node.
> 
OK, I will update them in the next version. 
Thanks for the review.
> Rob
> 
> .
>