linux-kernel - Re: [PATCH v3 1/2] dt-bindings: Documentation for qcom,eud

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Message-ID: <7308d80f-7d0c-62bd-5b7d-63813e420c47@codeaurora.org>
Date:   Thu, 9 Jan 2020 20:28:51 +0530
From:   "Dwivedi, Avaneesh Kumar (avani)" <akdwived@...eaurora.org>
To:     Rob Herring <robh@...nel.org>,
        Prakruthi Deepak Heragu <pheragu@...eaurora.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ckadabi@...eaurora.org, tsoni@...eaurora.org,
        bryanh@...eaurora.org, psodagud@...eaurora.org,
        rnayak@...eaurora.org,
        Satya Durga Srinivasu Prabhala <satyap@...eaurora.org>
Subject: Re: [PATCH v3 1/2] dt-bindings: Documentation for qcom,eud


On 11/17/2018 8:17 PM, Rob Herring wrote:
> On Thu, Nov 15, 2018 at 11:32:53AM -0800, Prakruthi Deepak Heragu wrote:
>> Documentation for Embedded USB Debugger (EUD) device tree bindings.
> I asked questions on v2 which were never answered.

HI Rob,

Can you please review my replies against your comments on patchset v2?

>
>> Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@...eaurora.org>
>> Signed-off-by: Prakruthi Deepak Heragu <pheragu@...eaurora.org>
>> ---
>>   .../devicetree/bindings/soc/qcom/qcom,msm-eud.txt  | 43 ++++++++++++++++++++++
>>   1 file changed, 43 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt
>>
>> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt
>> new file mode 100644
>> index 0000000..6d339e7
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt
>> @@ -0,0 +1,43 @@
>> +* Qualcomm Technologies Inc Embedded USB Debugger (EUD)
>> +
>> +The EUD (Embedded USB Debugger) is a mini-USB hub implemented
>> +on chip to support the USB-based debug and trace capabilities.
>> +
>> +Required properties:
>> +
>> + - compatible:  Should be "qcom,msm-eud"
>> + - interrupts:  Interrupt number
>> + - reg: Should be address and size of EUD register space
>> +
>> +EUD notifies clients for VBUS attach/detach and charger enable/disable
>> +events. The link between client and EUD is established via a directed
>> +graph. EUD has one endpoint of the graph link mentioning EUD as an
>> +output link and clients of EUD should have the other endpoint of the
>> +graph link as an input link.
>> +
>> +An example for EUD device node:
>> +
>> +	eud: qcom,msm-eud@...0000 {
>> +		compatible = "qcom,msm-eud";
>> +		interrupts = <GIC_SPI 492 IRQ_TYPE_LEVEL_HIGH>;
>> +		reg = <0x88e0000 0x4000>;
>> +		usb_con: connector {
>> +                compatible = "usb-c-connector";
>> +                label = "USB-C";
>> +                port {
>> +                	    eud_usb_output: endpoint {
>> +                        	    remote-endpoint = <&eud_usb3_input>;
>> +                        };
>> +        	    };
>> +        };
>> +	};
>> +
>> +An example for EUD client:
>> +
>> +	usb3 {
>> +		port {
>> +                eud_usb3_input: endpoint {
>> +                        remote-endpoint = <&eud_usb_output>;
>> +                };
>> +        };
>> +	};
>> -- 
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>>
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.