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Thu, 06 Aug 2026 11:23:28 -0700 (PDT) X-Received: by 2002:a05:6300:6d83:20b0:3cb:9a16:b159 with SMTP id adf61e73a8af0-3cb9a16b43fmr9174233637.6.1786040607520; Thu, 06 Aug 2026 11:23:27 -0700 (PDT) Received: from [192.168.0.7] ([49.204.111.196]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-315863b0bfesm30664455eec.3.2026.08.06.11.23.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Aug 2026 11:23:27 -0700 (PDT) Message-ID: <48a0f889-7cec-4f8d-9cb1-9196eac4d53b@oss.qualcomm.com> Date: Thu, 6 Aug 2026 23:53:21 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] dt-bindings: spi: qcom-geni: Document device-gpios property To: Mukesh Savaliya , konrad.dybcio@oss.qualcomm.com, Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson Cc: chandana.chiluveru@oss.qualcomm.com, Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260806-use_gpio_to_notify_master_of_spi_target_activity-v1-0-c363a9b5df69@oss.qualcomm.com> <20260806-use_gpio_to_notify_master_of_spi_target_activity-v1-1-c363a9b5df69@oss.qualcomm.com> <8cbd912e-0f50-4fa9-b534-7ce1a3c77d88@oss.qualcomm.com> Content-Language: en-US From: Praveen Talari In-Reply-To: <8cbd912e-0f50-4fa9-b534-7ce1a3c77d88@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=G60s1dk5 c=1 sm=1 tr=0 ts=6a74d120 cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=7DW+zsgf7PPjz/i6iZMG3g==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=BarMzL54zy4tqfeHTiAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-GUID: j_3T7RlaQqiDVQkDgQ8Qzws_WAK30Z7L X-Proofpoint-ORIG-GUID: j_3T7RlaQqiDVQkDgQ8Qzws_WAK30Z7L X-Proofpoint-Spam-Info: AW1haW4tMjYwODA2MDE0NCBTYWx0ZWRfXzaFLHhLI46FI YWtcqL+3jQo87Usq1DH6+n+olSJIKBUY1GGUf4OvQpKgTsR0Cij/tgpI1zIChKefhX+KSJtvn6f SUDjG5ZRfNDfeV05zUP7fmjNCTeS9sg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA2MDE0NCBTYWx0ZWRfX9imrWm1fug/V FodVIk/Buy7umo5ponzurBgJUsvJsdSDzuF530C+SXVUy5h8CenGfiwkjeAItJ1j9S0shm2b3Ro tnNUUizPBtBOwh9VrdAk5a1jGosXAwdAQyjz+Om3QdMVSSPn6nwHTlIFJJI40YH0iWl0+MuXVjZ eej/zbJA87c/T6/TYP4eUmXSmpmXfvznKQ5zeGkXZ2jfbtG/0+lkunBhedtx8KajJhgAJzPiws6 gi9fJN0aM3SGIRBfzMiGU84S/Ttg3h1HFUQPf1MGuzZVp8Nq8OvtP8i36WNoGsj3nE6pHlnoe1P aZsDC4P/yYfh0z+UNUJ4ldCHxuEIuDtx1hh73UWfWnwrALGBOSnKhvbuKVSDSDYyAIq5/O6ocbA uAZRaJqj9/VgrC151w5/1bpbEMW6/imjJXntZbkc3JlDbvtdvKdShEsEsV/ZaRbsId6wTYgB2IQ MY/5SxRVjCVK9XySP0g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-06_02,2026-08-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 adultscore=0 spamscore=0 clxscore=1015 phishscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608060144 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 >> --- >> 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(+) > > [...]