linux-kernel - Re: [PATCH v6 1/3] dt-bindings: i3c: Add support for Qualcomm I3C controller

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Message-ID: <4e571a20-3971-4181-aaff-d066a146656b@oracle.com>
Date: Tue, 1 Jul 2025 14:23:17 +0530
From: ALOK TIWARI <alok.a.tiwari@...cle.com>
To: Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>,
        alexandre.belloni@...tlin.com, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, jarkko.nikula@...ux.intel.com,
        linux-i3c@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Frank.Li@....com, wsa+renesas@...g-engineering.com
Cc: andersson@...nel.org, konradybcio@...nel.org
Subject: Re: [PATCH v6 1/3] dt-bindings: i3c: Add support for Qualcomm I3C
 controller



On 7/1/2025 12:48 PM, Mukesh Kumar Savaliya wrote:
> Add device tree bindings for the Qualcomm I3C controller. This includes
> the necessary documentation and properties required to describe the
> hardware in the device tree.
> 
> Signed-off-by: Mukesh Kumar Savaliya<mukesh.savaliya@....qualcomm.com>
> Reviewed-by: Rob Herring (Arm)<robh@...nel.org>
> ---
>   .../bindings/i3c/qcom,geni-i3c.yaml           | 59 +++++++++++++++++++
>   1 file changed, 59 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/i3c/qcom,geni-i3c.yaml
> 
> diff --git a/Documentation/devicetree/bindings/i3c/qcom,geni-i3c.yaml b/Documentation/devicetree/bindings/i3c/qcom,geni-i3c.yaml
> new file mode 100644
> index 000000000000..45022327aee7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i3c/qcom,geni-i3c.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id:https://urldefense.com/v3/__http://devicetree.org/schemas/i3c/qcom,geni- 
> i3c.yaml*__;Iw!!ACWV5N9M2RV99hQ! 
> PBExY8d6MKcoXxa6GINMC0xaLabw8ZZ5entM7BVRBDg5TTn0wX4bOd- 
> BYUvy71WMSS1Yd5r1Fo9h40H4ug1cfxGkUxWZ0lw3TKY$ 
> +$schema:https://urldefense.com/v3/__http://devicetree.org/meta-schemas/ 
> core.yaml*__;Iw!!ACWV5N9M2RV99hQ! 
> PBExY8d6MKcoXxa6GINMC0xaLabw8ZZ5entM7BVRBDg5TTn0wX4bOd- 
> BYUvy71WMSS1Yd5r1Fo9h40H4ug1cfxGkUxWZDFlVARk$ 
> +
> +title: Qualcomm Geni based QUP I3C Controller
> +
> +maintainers:
> +  - Mukesh Kumar Savaliya<mukesh.savaliya@....qualcomm.com>
> +
> +description:
> +  I3C in master mode supports up to 12.5MHz, SDR mode data transfer in mixed
> +  bus mode (I2C and I3C target devices on same i3c bus). It also supports
> +  hotjoin, IBI mechanism.

Hot-join
IBI (In-Band Interrupt)

> +
> +  I3C Controller nodes must be child of GENI based Qualcomm Universal

"nodes must be children" ?

> +  Peripharal. Please refer GENI based QUP wrapper controller node bindings
> +  described in Documentation/devicetree/bindings/soc/qcom/qcom,geni-se.yaml.



Thanks,
Alok