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[192.35.156.11]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-14395d13ee7sm306945c88.8.2026.09.15.10.54.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Sep 2026 10:54:28 -0700 (PDT) Message-ID: <362574de-c709-4e78-9b88-4bc4e0dd7c7d@oss.qualcomm.com> Date: Tue, 15 Sep 2026 10:54:22 -0700 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] pinctrl: scmi: Replace get function and group info with generic callbacks To: Sudeep Holla Cc: Cristian Marussi , Linus Walleij , arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260731-scmi-pinctrl-generics-v1-0-8affd2b79a6b@oss.qualcomm.com> <56107a6d-962d-4508-a1d3-7a6e9e2af887@oss.qualcomm.com> <20260907-airborne-cobra-of-democracy-a9c411@sudeepholla> Content-Language: en-US From: Alex Tran In-Reply-To: <20260907-airborne-cobra-of-democracy-a9c411@sudeepholla> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: N8fWqnm0iuntbMQXbbBU3IrxHCllZYzD X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE1MDI2MSBTYWx0ZWRfXwGmcI8DrbYn6 jPqk2LZLuphUIDMAPorXDkC6P65QOhX3i6VC2ahZykpUVGTTrx3VWeAQP7eFDlWtHOlBw7JpPxi novZ429NHyt90s4QpV18vzYvng+1os0= X-Authority-Analysis: v=2.4 cv=dcUVTnXe c=1 sm=1 tr=0 ts=6aa98655 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=ZdW6uxA9NKXbfdqeeS2OGA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=8qBNkTY05YfpeKCp1UkA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE1MDI2MSBTYWx0ZWRfX/ZxWpSmk4PIE vgeaTnZFS0KXvRs1PGiS6kncNm8zbWSCJtwI/V4tVKivZEU2k/8Xa4mH02oH+QLxCfwQaCv1Jrb Y/eOWv9xTAX5opWO53veBT26F8H4r2lVRh/xEL+qjZsulQ4pfZj0i1aL2c3i2FwUDiQDHkv0vaJ g31ykORGKZuuLUxoyQtpPpIoBUCSZUnSHsoftKdm9rXxXlmghSoSs5Y81Tmhae7Z/wN0C/h4t6W Eutg4wcppIcDpdU7lFz3kG8ysxEB+fjDbK3JRLr6bRBJL2PZ6hkGpU47w+mri7RKelOXzYwJWir tZXIgdC54H3drucAJJoCiNvDW2EYwqNK9UgIqiqmaK5bFFiY6VVVIO1kM7zL6V223sOS4JLePQl 8HjX0Z96hVWc0H7r9qesI73QtIAnZltFtsOYnDTVy5gsb5i3pWL+oTsPaJBwvHSjZJBRxTQRnCx rFCx6DQl4EYEttR9K2A== X-Proofpoint-GUID: N8fWqnm0iuntbMQXbbBU3IrxHCllZYzD 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=2026-09-15_05,2026-09-15_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 impostorscore=0 malwarescore=0 phishscore=0 suspectscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609150261 On 9/7/2026 1:53 AM, Sudeep Holla wrote: > On Fri, Aug 14, 2026 at 05:05:27PM -0700, Alex Tran wrote: >>> Hi Alex, >>> >>> I gave it a go at this series on an emulated setup and with these >>> changes I get: >>> >>> root@deb-guest:~# modprobe pinctrl-scmi >>> [   15.329932] scmi-pinctrl scmi_dev.4: error -EINVAL: Failed to register functions >>> [   15.330259] scmi-pinctrl scmi_dev.4: probe with driver scmi-pinctrl failed with error -22 >>> >>> ...not debugged any further. >>> >>> Thanks, >>> Cristian >> Hi Cristian, >> >> I've tested this series on sa8797p hardware and did not experience any issues >> with registering functions during probe. Can you provide me with the pin >> topology of your emulated setup? I have a hunch that the topology may >> contain a function with 0 groups which is why -EINVAL is being returned. >> The previous pinctrl_scmi_get_function_groups callback considered a function >> with no groups invalid. > I found couple of feedback from sashiko valid, can you take a look at all the > comments there[1] ? Hi Sudeep, Sure, I'll address all the relevant comments from the feedback and send in a revised version once ready. BR, Alex