From: Rob Herring <robh@kernel.org>
To: Prakruthi Deepak Heragu <pheragu@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
ckadabi@codeaurora.org, tsoni@codeaurora.org,
bryanh@codeaurora.org, psodagud@codeaurora.org,
rnayak@codeaurora.org,
Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Subject: [v3,1/2] dt-bindings: Documentation for qcom,eud
Date: Sat, 17 Nov 2018 08:47:05 -0600 [thread overview]
Message-ID: <20181117144705.GA18155@bogus> (raw)
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.
>
> Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
> Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.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@88e0000 {
> + 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
>
next prev reply other threads:[~2018-11-17 14:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1542310374-18474-1-git-send-email-pheragu@codeaurora.org>
2018-11-15 19:32 ` [v3,1/2] dt-bindings: Documentation for qcom,eud Prakruthi Deepak Heragu
2018-11-17 14:47 ` Rob Herring [this message]
2020-01-09 14:58 ` [PATCH v3 1/2] " Dwivedi, Avaneesh Kumar (avani)
2018-11-15 19:32 ` [v3,2/2] Embedded USB Debugger (EUD) driver Prakruthi Deepak Heragu
2018-11-15 23:06 ` Greg Kroah-Hartman
2020-01-23 21:41 ` [PATCH v3 2/2] " Dwivedi, Avaneesh Kumar (avani)
2020-01-24 5:57 ` Greg KH
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