From: Praveen Talari <praveen.talari@oss.qualcomm.com>
To: Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>,
konrad.dybcio@oss.qualcomm.com, Mark Brown <broonie@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>
Cc: chandana.chiluveru@oss.qualcomm.com,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: spi: qcom-geni: Document device-gpios property
Date: Thu, 6 Aug 2026 23:53:21 +0530 [thread overview]
Message-ID: <48a0f889-7cec-4f8d-9cb1-9196eac4d53b@oss.qualcomm.com> (raw)
In-Reply-To: <8cbd912e-0f50-4fa9-b534-7ce1a3c77d88@oss.qualcomm.com>
Hi Mukesh,
On 06-08-2026 23:45, Mukesh Savaliya wrote:
>
>
> On 8/6/2026 3:43 PM, Praveen Talari wrote:
>> When operating in SPI target (slave) mode, the GENI SPI controller can
>> use an external GPIO to notify the SPI master about the target's
>> active state.
>>
>
> Is this active state meaning target is in ready state to communicate
> with master controller ?
Yes, you are right.
>
> When will it set this gpio ? can you describe little ?
I have already described the behaviour in the driver change.
Is additional explanation required in the DT binding as well?
>
>> Document the optional device-gpios property for the qcom,spi-geni-qcom
> seems bit generic name, it should describe the signal purpose, not the
> device. Something like handshake-gpios OR ready-gpios ?
As mark pointed, there is already ready-gpios so i use this.
>> and qcom,sa8255p-geni-spi bindings, restricted to spi-slave nodes.
>>
>> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
>> ---
>> Documentation/devicetree/bindings/spi/qcom,sa8255p-geni-spi.yaml | 9
>> +++++++++
>> Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml | 9
>> +++++++++
>> 2 files changed, 18 insertions(+)
>
> [...]
next prev parent reply other threads:[~2026-08-06 18:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-06 10:13 [PATCH 0/2] spi: qcom-geni: Use GPIO to notify master of SPI target activity Praveen Talari
2026-08-06 10:13 ` [PATCH 1/2] dt-bindings: spi: qcom-geni: Document device-gpios property Praveen Talari
2026-08-06 16:47 ` Mark Brown
2026-08-06 16:54 ` Praveen Talari
2026-08-06 17:35 ` Mark Brown
2026-08-06 18:17 ` Praveen Talari
2026-08-06 18:34 ` Mark Brown
2026-08-06 18:15 ` Mukesh Savaliya
2026-08-06 18:23 ` Praveen Talari [this message]
2026-08-06 10:13 ` [PATCH 2/2] spi: qcom-geni: Use GPIO to notify master of SPI target activity Praveen Talari
2026-08-06 10:23 ` sashiko-bot
2026-08-06 18:24 ` Mukesh Savaliya
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