linux-kernel - Re: [PATCH v2 3/8] spi: dt-bindings: Add support for selecting data transfer mode

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Message-ID: <f090d637-1ef1-4967-b5bc-6bfce3d7130e@kernel.org>
Date: Mon, 27 Jan 2025 07:59:53 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Viken Dadhaniya <quic_vdadhani@...cinc.com>, andi.shyti@...nel.org,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 gregkh@...uxfoundation.org, jirislaby@...nel.org, broonie@...nel.or,
 andersson@...nel.org, konradybcio@...nel.org, johan+linaro@...nel.org,
 dianders@...omium.org, agross@...nel.org, linux-arm-msm@...r.kernel.org,
 linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
 linux-spi@...r.kernel.org
Cc: quic_msavaliy@...cinc.com, quic_anupkulk@...cinc.com
Subject: Re: [PATCH v2 3/8] spi: dt-bindings: Add support for selecting data
 transfer mode

On 24/01/2025 11:53, Viken Dadhaniya wrote:
>  .../devicetree/bindings/spi/qcom,spi-geni-qcom.yaml        | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
> index 2e20ca313ec1..d0dd960ee12f 100644
> --- a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
> +++ b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
> @@ -66,6 +66,12 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  qcom,xfer-mode:
> +    description: Set the value to 1 for non-GPI (FIFO/CPU DMA) mode and 3 for GPI DMA mode.
> +      The default mode is FIFO.
> +    $ref: /schemas/types.yaml#/definitions/uint32

Same concerns as for I2C, so discussion going there.

Best regards,
Krzysztof