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GET /api/1.1/patches/2222680/?format=api
{ "id": 2222680, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2222680/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260413122233.375945-4-ajay.nandam@oss.qualcomm.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/1.1/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260413122233.375945-4-ajay.nandam@oss.qualcomm.com>", "date": "2026-04-13T12:22:33", "name": "[v1,3/3] pinctrl: qcom: lpass-lpi: Resume clocks for GPIO access", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5c7aa02aed876bf350da7f1e239168551e139bc1", "submitter": { "id": 93131, "url": "http://patchwork.ozlabs.org/api/1.1/people/93131/?format=api", "name": "Ajay Kumar Nandam", "email": "ajay.nandam@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260413122233.375945-4-ajay.nandam@oss.qualcomm.com/mbox/", "series": [ { "id": 499692, "url": "http://patchwork.ozlabs.org/api/1.1/series/499692/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=499692", "date": "2026-04-13T12:22:30", "name": "pinctrl: qcom: lpass-lpi: PM clock framework cleanup and fixes", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499692/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222680/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222680/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-gpio+bounces-35089-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) 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linux-kernel@vger.kernel.org, srinivas.kandagatla@oss.qualcomm.com", "Subject": "[PATCH v1 3/3] pinctrl: qcom: lpass-lpi: Resume clocks for GPIO\n access", "Date": "Mon, 13 Apr 2026 17:52:33 +0530", "Message-Id": "<20260413122233.375945-4-ajay.nandam@oss.qualcomm.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260413122233.375945-1-ajay.nandam@oss.qualcomm.com>", "References": "<20260413122233.375945-1-ajay.nandam@oss.qualcomm.com>", "Precedence": "bulk", "X-Mailing-List": "linux-gpio@vger.kernel.org", "List-Id": "<linux-gpio.vger.kernel.org>", "List-Subscribe": "<mailto:linux-gpio+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-gpio+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-ORIG-GUID": "WSahv8w5r4AO1IZv2CPT2r86BCsxllNc", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDEzMDEyMiBTYWx0ZWRfX9HzQbX0DHZMn\n lBUMGmvrjBWn+1tV5FY5jsvOoG4ehgfg9rafq5fdziMTllpDVTuoAZte1ouE6DYgeOyZwdOBhDj\n fNp2xEMqt1/bz6bxyVEamoR/K9/SZEOynzf/czge2v/sQriXlLXM4KZ1Ob/cRvQnXTxX3xZTGQZ\n U5pu3FzavVbGyOPSxkSR6kptxrZn5bSF/XiAG30ppOEN6ThZ6ak2O/EBPdceWeVguDXIcyoMI/q\n p0v36rWF+1FeXhNPJ5T4V/VG/t2sNKzobjD3OL6saz5u7s0X8BDnHm8AsBO/xivs45jl0vfgTPE\n gziLpB06+vvkc9uY0iyHfb56+Hr8B0+7y/bGpgsrRJmJzj1DHcyq9vqSIvqdTpHcb3yVByGS+99\n PW2/M9EL17pn9H1hETWXKBNNlEFFpJ7SIJyiHWhwFOFNVxdW9vGVtT7JPOvwvIGwoMFLg14ExIN\n +a9zEY5yJ9/8mtSVLOA==", "X-Proofpoint-GUID": "WSahv8w5r4AO1IZv2CPT2r86BCsxllNc", "X-Authority-Analysis": "v=2.4 cv=QtNuG1yd c=1 sm=1 tr=0 ts=69dce022 cx=c_pps\n a=72HoHk1woDtn7btP4rdmlg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17\n a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8\n a=f7xhw97bOydz6QRQpsAA:9 a=kA6IBgd4cpdPkAWqgNAz:22", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-13_03,2026-04-13_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 impostorscore=0 adultscore=0 phishscore=0 malwarescore=0\n bulkscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 suspectscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604130122" }, "content": "Ensure the LPI pinctrl device clocks are runtime resumed\nbefore accessing GPIO registers and autosuspended after\nthe access completes.\n\nGuard GPIO register read and write helpers with synchronous\nruntime PM calls so the device is active during MMIO\noperations.\n\nSigned-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>\n---\n drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)", "diff": "diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c\nindex d108e7321..4275f2734 100644\n--- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c\n+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c\n@@ -49,8 +49,17 @@ static int lpi_gpio_read(struct lpi_pinctrl *state, unsigned int pin,\n \telse\n \t\tpin_offset = LPI_TLMM_REG_OFFSET * pin;\n \n+\tret = pm_runtime_get_sync(state->dev);\n+\tif (ret < 0) {\n+\t\tpm_runtime_put_noidle(state->dev);\n+\t\treturn ret;\n+\t}\n+\n \t*val = ioread32(state->tlmm_base + pin_offset + addr);\n \n+\tpm_runtime_mark_last_busy(state->dev);\n+\tpm_runtime_put_autosuspend(state->dev);\n+\n \treturn 0;\n }\n \n@@ -65,8 +74,17 @@ static int lpi_gpio_write(struct lpi_pinctrl *state, unsigned int pin,\n \telse\n \t\tpin_offset = LPI_TLMM_REG_OFFSET * pin;\n \n+\tret = pm_runtime_get_sync(state->dev);\n+\tif (ret < 0) {\n+\t\tpm_runtime_put_noidle(state->dev);\n+\t\treturn ret;\n+\t}\n+\n \tiowrite32(val, state->tlmm_base + pin_offset + addr);\n \n+\tpm_runtime_mark_last_busy(state->dev);\n+\tpm_runtime_put_autosuspend(state->dev);\n+\n \treturn 0;\n }\n \n", "prefixes": [ "v1", "3/3" ] }