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Mon, 18 Aug 2025 00:19:45 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45a209c25a1sm131087915e9.22.2025.08.18.00.19.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Aug 2025 00:19:44 -0700 (PDT) Date: Mon, 18 Aug 2025 10:19:41 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Mohammad Gomaa , Wolfram Sang , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, kenalba@google.com, hbarnor@chromium.org, rayxu@google.com, Mohammad Gomaa Subject: Re: [PATCH WIP v2] i2c: add tracepoints to aid debugging in i2c-core-base Message-ID: <202508181525.GKAXMVYv-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250817-refactor-add-i2c-tracepoints-v2-1-c0bad299e02e@gmail.com> Hi Mohammad, kernel test robot noticed the following build warnings: url: https://github.com/intel-lab-lkp/linux/commits/Mohammad-Gomaa/i2c-add-tracepoints-to-aid-debugging-in-i2c-core-base/20250817-155936 base: 7e161a991ea71e6ec526abc8f40c6852ebe3d946 patch link: https://lore.kernel.org/r/20250817-refactor-add-i2c-tracepoints-v2-1-c0bad299e02e%40gmail.com patch subject: [PATCH WIP v2] i2c: add tracepoints to aid debugging in i2c-core-base config: x86_64-randconfig-161-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181525.GKAXMVYv-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202508181525.GKAXMVYv-lkp@intel.com/ smatch warnings: drivers/i2c/i2c-core-base.c:535 i2c_device_probe() error: uninitialized symbol 'err_reason'. vim +/err_reason +535 drivers/i2c/i2c-core-base.c f37dd80ac2a67e4 drivers/i2c/i2c-core.c David Brownell 2007-02-13 491 static int i2c_device_probe(struct device *dev) ^1da177e4c3f415 drivers/i2c/i2c-core.c Linus Torvalds 2005-04-16 492 { 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 493 struct fwnode_handle *fwnode = dev_fwnode(dev); 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 494 struct i2c_client *client = i2c_verify_client(dev); 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 495 struct i2c_driver *driver; 79ece9b292af6b0 drivers/i2c/i2c-core-base.c Ricardo Ribalda 2022-11-14 496 bool do_power_on; 50c3304a5e1e521 drivers/i2c/i2c-core.c Hans Verkuil 2008-03-12 497 int status; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 498 int err_reason; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 499 bool has_id_table, has_acpi_match, has_of_match; 7b4fbc50fabb810 drivers/i2c/i2c-core.c David Brownell 2007-05-01 500 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 501 if (!client) 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 502 return 0; 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 503 6e76cb7dfd34a2e drivers/i2c/i2c-core-base.c Charles Keepax 2019-06-27 504 client->irq = client->init_irq; 6e76cb7dfd34a2e drivers/i2c/i2c-core-base.c Charles Keepax 2019-06-27 505 0c2a34937f7e4c4 drivers/i2c/i2c-core-base.c Wolfram Sang 2020-06-30 506 if (!client->irq) { 845c877009cf014 drivers/i2c/i2c-core.c Mika Westerberg 2015-05-06 507 int irq = -ENOENT; 845c877009cf014 drivers/i2c/i2c-core.c Mika Westerberg 2015-05-06 508 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 509 if (client->flags & I2C_CLIENT_HOST_NOTIFY) { 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 510 dev_dbg(dev, "Using Host Notify IRQ\n"); 72bfcee11cf8950 drivers/i2c/i2c-core-base.c Jarkko Nikula 2019-04-30 511 /* Keep adapter active when Host Notify is required */ 72bfcee11cf8950 drivers/i2c/i2c-core-base.c Jarkko Nikula 2019-04-30 512 pm_runtime_get_sync(&client->adapter->dev); 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 513 irq = i2c_smbus_host_notify_to_irq(client); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 514 err_reason = I2C_TRACE_REASON_HOST_NOTIFY; 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 515 } else if (is_of_node(fwnode)) { 5d9424b00b577b6 drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 516 irq = fwnode_irq_get_byname(fwnode, "irq"); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 517 if (irq == -EINVAL || irq == -ENODATA) 5d9424b00b577b6 drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 518 irq = fwnode_irq_get(fwnode, 0); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 519 err_reason = I2C_TRACE_REASON_FROM_OF; 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 520 } else if (is_acpi_device_node(fwnode)) { b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 521 bool wake_capable; b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 522 b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 523 irq = i2c_acpi_get_irq(client, &wake_capable); b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 524 if (irq > 0 && wake_capable) b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 525 client->flags |= I2C_CLIENT_WAKE; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 526 err_reason = I2C_TRACE_REASON_FROM_ACPI; 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 527 } err_reason not set on else { path. 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 528 if (irq == -EPROBE_DEFER) { 5c52473b4496b35 drivers/i2c/i2c-core-base.c Xu Yang 2025-05-07 529 status = dev_err_probe(dev, irq, "can't get irq\n"); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 530 err_reason = I2C_TRACE_REASON_EPROBE_DEFER_IRQ; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 531 goto put_sync_adapter; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 532 } 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 533 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 534 if (irq < 0) { dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 @535 trace_i2c_device_probe_debug(dev, err_reason); ^^^^^^^^^^ 6f34be7400c68d3 drivers/i2c/i2c-core.c Geert Uytterhoeven 2014-11-17 536 irq = 0; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 537 } 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 538 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 539 client->irq = irq; 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17 Aug 2025 22:54:50 -0700 X-CSE-ConnectionGUID: 5hE0J/hFSPyMo77l4f6mIQ== X-CSE-MsgGUID: 1Qegs6GcTlqOC98sfRF5wQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,293,1747724400"; d="scan'208";a="171923014" Received: from lkp-server02.sh.intel.com (HELO 4ea60e6ab079) ([10.239.97.151]) by orviesa004.jf.intel.com with ESMTP; 17 Aug 2025 22:54:49 -0700 Received: from kbuild by 4ea60e6ab079 with local (Exim 4.96) (envelope-from ) id 1unsng-000DxP-0B; Mon, 18 Aug 2025 05:53:17 +0000 Date: Mon, 18 Aug 2025 13:52:37 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: Re: [PATCH WIP v2] i2c: add tracepoints to aid debugging in i2c-core-base Message-ID: <202508181525.GKAXMVYv-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20250817-refactor-add-i2c-tracepoints-v2-1-c0bad299e02e@gmail.com> References: <20250817-refactor-add-i2c-tracepoints-v2-1-c0bad299e02e@gmail.com> TO: Mohammad Gomaa TO: Wolfram Sang TO: Steven Rostedt TO: Masami Hiramatsu TO: Mathieu Desnoyers CC: linux-i2c@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: linux-trace-kernel@vger.kernel.org CC: kenalba@google.com CC: hbarnor@chromium.org CC: rayxu@google.com CC: Mohammad Gomaa Hi Mohammad, kernel test robot noticed the following build warnings: [auto build test WARNING on 7e161a991ea71e6ec526abc8f40c6852ebe3d946] url: https://github.com/intel-lab-lkp/linux/commits/Mohammad-Gomaa/i2c-add-tracepoints-to-aid-debugging-in-i2c-core-base/20250817-155936 base: 7e161a991ea71e6ec526abc8f40c6852ebe3d946 patch link: https://lore.kernel.org/r/20250817-refactor-add-i2c-tracepoints-v2-1-c0bad299e02e%40gmail.com patch subject: [PATCH WIP v2] i2c: add tracepoints to aid debugging in i2c-core-base :::::: branch date: 24 hours ago :::::: commit date: 24 hours ago config: x86_64-randconfig-161-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181525.GKAXMVYv-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202508181525.GKAXMVYv-lkp@intel.com/ smatch warnings: drivers/i2c/i2c-core-base.c:535 i2c_device_probe() error: uninitialized symbol 'err_reason'. vim +/err_reason +535 drivers/i2c/i2c-core-base.c 4d5538f5882a6b6 drivers/i2c/i2c-core.c Benjamin Tissoires 2016-10-13 490 f37dd80ac2a67e4 drivers/i2c/i2c-core.c David Brownell 2007-02-13 491 static int i2c_device_probe(struct device *dev) ^1da177e4c3f415 drivers/i2c/i2c-core.c Linus Torvalds 2005-04-16 492 { 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 493 struct fwnode_handle *fwnode = dev_fwnode(dev); 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 494 struct i2c_client *client = i2c_verify_client(dev); 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 495 struct i2c_driver *driver; 79ece9b292af6b0 drivers/i2c/i2c-core-base.c Ricardo Ribalda 2022-11-14 496 bool do_power_on; 50c3304a5e1e521 drivers/i2c/i2c-core.c Hans Verkuil 2008-03-12 497 int status; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 498 int err_reason; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 499 bool has_id_table, has_acpi_match, has_of_match; 7b4fbc50fabb810 drivers/i2c/i2c-core.c David Brownell 2007-05-01 500 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 501 if (!client) 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 502 return 0; 51298d1257b9f0a drivers/i2c/i2c-core.c Jean Delvare 2009-09-18 503 6e76cb7dfd34a2e drivers/i2c/i2c-core-base.c Charles Keepax 2019-06-27 504 client->irq = client->init_irq; 6e76cb7dfd34a2e drivers/i2c/i2c-core-base.c Charles Keepax 2019-06-27 505 0c2a34937f7e4c4 drivers/i2c/i2c-core-base.c Wolfram Sang 2020-06-30 506 if (!client->irq) { 845c877009cf014 drivers/i2c/i2c-core.c Mika Westerberg 2015-05-06 507 int irq = -ENOENT; 845c877009cf014 drivers/i2c/i2c-core.c Mika Westerberg 2015-05-06 508 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 509 if (client->flags & I2C_CLIENT_HOST_NOTIFY) { 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 510 dev_dbg(dev, "Using Host Notify IRQ\n"); 72bfcee11cf8950 drivers/i2c/i2c-core-base.c Jarkko Nikula 2019-04-30 511 /* Keep adapter active when Host Notify is required */ 72bfcee11cf8950 drivers/i2c/i2c-core-base.c Jarkko Nikula 2019-04-30 512 pm_runtime_get_sync(&client->adapter->dev); 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 513 irq = i2c_smbus_host_notify_to_irq(client); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 514 err_reason = I2C_TRACE_REASON_HOST_NOTIFY; 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 515 } else if (is_of_node(fwnode)) { 5d9424b00b577b6 drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 516 irq = fwnode_irq_get_byname(fwnode, "irq"); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 517 if (irq == -EINVAL || irq == -ENODATA) 5d9424b00b577b6 drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 518 irq = fwnode_irq_get(fwnode, 0); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 519 err_reason = I2C_TRACE_REASON_FROM_OF; 5763a474c887d4a drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 520 } else if (is_acpi_device_node(fwnode)) { b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 521 bool wake_capable; b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 522 b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 523 irq = i2c_acpi_get_irq(client, &wake_capable); b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 524 if (irq > 0 && wake_capable) b38f2d5d9615cf9 drivers/i2c/i2c-core-base.c Raul E Rangel 2022-09-29 525 client->flags |= I2C_CLIENT_WAKE; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 526 err_reason = I2C_TRACE_REASON_FROM_ACPI; 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 527 } 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 528 if (irq == -EPROBE_DEFER) { 5c52473b4496b35 drivers/i2c/i2c-core-base.c Xu Yang 2025-05-07 529 status = dev_err_probe(dev, irq, "can't get irq\n"); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 530 err_reason = I2C_TRACE_REASON_EPROBE_DEFER_IRQ; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 531 goto put_sync_adapter; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 532 } 331c34255293cd0 drivers/i2c/i2c-core.c Dmitry Torokhov 2017-01-04 533 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 534 if (irq < 0) { dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 @535 trace_i2c_device_probe_debug(dev, err_reason); 6f34be7400c68d3 drivers/i2c/i2c-core.c Geert Uytterhoeven 2014-11-17 536 irq = 0; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 537 } 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 538 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 539 client->irq = irq; 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 540 } 2fd36c55264926e drivers/i2c/i2c-core.c Laurent Pinchart 2014-10-30 541 0c2a34937f7e4c4 drivers/i2c/i2c-core-base.c Wolfram Sang 2020-06-30 542 driver = to_i2c_driver(dev->driver); 0c2a34937f7e4c4 drivers/i2c/i2c-core-base.c Wolfram Sang 2020-06-30 543 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 544 has_id_table = driver->id_table; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 545 has_acpi_match = acpi_driver_match_device(dev, dev->driver); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 546 has_of_match = i2c_of_match_device(dev->driver->of_match_table, client); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 547 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 548 if (!has_id_table) dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 549 trace_i2c_device_probe_debug(dev, I2C_TRACE_REASON_NO_I2C_ID_TABLE); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 550 if (!has_acpi_match) dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 551 trace_i2c_device_probe_debug(dev, I2C_TRACE_REASON_ACPI_ID_MISMATCH); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 552 if (!has_of_match) dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 553 trace_i2c_device_probe_debug(dev, I2C_TRACE_REASON_OF_ID_MISMATCH); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 554 da10c06a044b375 drivers/i2c/i2c-core.c Lee Jones 2016-11-07 555 /* f4b17a14faeec41 drivers/i2c/i2c-core-base.c Javier Martinez Canillas 2017-08-09 556 * An I2C ID table is not mandatory, if and only if, a suitable OF f4b17a14faeec41 drivers/i2c/i2c-core-base.c Javier Martinez Canillas 2017-08-09 557 * or ACPI ID table is supplied for the probing device. da10c06a044b375 drivers/i2c/i2c-core.c Lee Jones 2016-11-07 558 */ dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 559 if (!has_id_table && !has_acpi_match && !has_of_match) { 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 560 status = -ENODEV; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 561 err_reason = I2C_TRACE_REASON_NO_ID_MATCH; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 562 goto put_sync_adapter; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 563 } 0acc2b321342aa8 drivers/i2c/i2c-core.c Lars-Peter Clausen 2013-09-29 564 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 565 if (client->flags & I2C_CLIENT_WAKE) { 3e99834cc0c7f06 drivers/i2c/i2c-core-base.c Andy Shevchenko 2019-07-26 566 int wakeirq; 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 567 5d9424b00b577b6 drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 568 wakeirq = fwnode_irq_get_byname(fwnode, "wakeup"); 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 569 if (wakeirq == -EPROBE_DEFER) { 5c52473b4496b35 drivers/i2c/i2c-core-base.c Xu Yang 2025-05-07 570 status = dev_err_probe(dev, wakeirq, "can't get wakeirq\n"); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 571 err_reason = I2C_TRACE_REASON_EPROBE_DEFER_WAKEIRQ; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 572 goto put_sync_adapter; 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 573 } 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 574 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 575 device_init_wakeup(&client->dev, true); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 576 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 577 if (wakeirq > 0 && wakeirq != client->irq) { 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 578 status = dev_pm_set_dedicated_wake_irq(dev, wakeirq); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 579 err_reason = I2C_TRACE_REASON_SET_DED_WAKE_FAILED; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 580 } else if (client->irq > 0) { c18fba23061f16d drivers/i2c/i2c-core.c Grygorii Strashko 2015-11-12 581 status = dev_pm_set_wake_irq(dev, client->irq); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 582 err_reason = I2C_TRACE_REASON_SET_WAKE_FAILED; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 583 } else { 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 584 status = 0; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 585 err_reason = I2C_TRACE_REASON_NO_IRQ; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 586 } 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 587 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 588 if (status) { b93d3d373924670 drivers/i2c/i2c-core.c Andy Shevchenko 2016-08-25 589 dev_warn(&client->dev, "failed to set up wakeup irq\n"); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 590 trace_i2c_device_probe_debug(&client->dev, err_reason); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 591 } 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 592 } 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 593 7b4fbc50fabb810 drivers/i2c/i2c-core.c David Brownell 2007-05-01 594 dev_dbg(dev, "probe\n"); d2653e92732bd39 drivers/i2c/i2c-core.c Jean Delvare 2008-04-29 595 3435b7f0fd28b9c drivers/i2c/i2c-core-base.c Andy Shevchenko 2025-04-16 596 status = of_clk_set_defaults(to_of_node(fwnode), false); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 597 if (status < 0) { dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 598 err_reason = I2C_TRACE_REASON_SET_DEF_CLOCKS; 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 599 goto err_clear_wakeup_irq; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 600 } 79ece9b292af6b0 drivers/i2c/i2c-core-base.c Ricardo Ribalda 2022-11-14 601 do_power_on = !i2c_acpi_waive_d0_probe(dev); d42c7c6fd66a6e2 drivers/i2c/i2c-core-base.c Claudiu Beznea 2025-07-03 602 status = dev_pm_domain_attach(&client->dev, do_power_on ? PD_FLAG_ATTACH_POWER_ON : 0); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 603 if (status) { dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 604 err_reason = I2C_TRACE_REASON_ATTACH_PM_DOMAIN; 74cedd30522819d drivers/i2c/i2c-core.c Kieran Bingham 2015-10-12 605 goto err_clear_wakeup_irq; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 606 } 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 607 client->devres_group_id = devres_open_group(&client->dev, NULL, 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 608 GFP_KERNEL); 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 609 if (!client->devres_group_id) { 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 610 status = -ENOMEM; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 611 err_reason = I2C_TRACE_REASON_OPEN_DEVRES_GROUP; 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 612 goto err_detach_pm_domain; 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 613 } 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 614 6250ebe666e425e drivers/i2c/i2c-core-base.c Guenter Roeck 2025-01-25 615 client->debugfs = debugfs_create_dir(dev_name(&client->dev), 6250ebe666e425e drivers/i2c/i2c-core-base.c Guenter Roeck 2025-01-25 616 client->adapter->debugfs); 6250ebe666e425e drivers/i2c/i2c-core-base.c Guenter Roeck 2025-01-25 617 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 618 if (driver->probe) { 03c835f498b5400 drivers/i2c/i2c-core-base.c Uwe Kleine-König 2023-02-26 619 status = driver->probe(client); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 620 err_reason = I2C_TRACE_REASON_PROBE_FAILED; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 621 } else { b8a1a4cd5a98a2a drivers/i2c/i2c-core.c Lee Jones 2016-11-07 622 status = -EINVAL; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 623 err_reason = I2C_TRACE_REASON_NO_PROBE; dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 624 } b8a1a4cd5a98a2a drivers/i2c/i2c-core.c Lee Jones 2016-11-07 625 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 626 /* 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 627 * Note that we are not closing the devres group opened above so 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 628 * even resources that were attached to the device after probe is 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 629 * run are released when i2c_device_remove() is executed. This is 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 630 * needed as some drivers would allocate additional resources, 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 631 * for example when updating firmware. 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 632 */ 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 633 72fa818e8a3145a drivers/i2c/i2c-core.c Wolfram Sang 2014-01-21 634 if (status) 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 635 goto err_release_driver_resources; 72fa818e8a3145a drivers/i2c/i2c-core.c Wolfram Sang 2014-01-21 636 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 637 trace_i2c_device_probe_complete(&client->dev, status, err_reason); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 638 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 639 return 0; 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 640 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 641 err_release_driver_resources: 6250ebe666e425e drivers/i2c/i2c-core-base.c Guenter Roeck 2025-01-25 642 debugfs_remove_recursive(client->debugfs); 5b5475826c5265c drivers/i2c/i2c-core-base.c Dmitry Torokhov 2021-03-21 643 devres_release_group(&client->dev, client->devres_group_id); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 644 err_detach_pm_domain: 79ece9b292af6b0 drivers/i2c/i2c-core-base.c Ricardo Ribalda 2022-11-14 645 dev_pm_domain_detach(&client->dev, do_power_on); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 646 err_clear_wakeup_irq: 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 647 dev_pm_clear_wake_irq(&client->dev); 3fffd1283927342 drivers/i2c/i2c-core.c Dmitry Torokhov 2015-08-17 648 device_init_wakeup(&client->dev, false); 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 649 put_sync_adapter: 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 650 if (client->flags & I2C_CLIENT_HOST_NOTIFY) 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 651 pm_runtime_put_sync(&client->adapter->dev); 3c3dd56f760da05 drivers/i2c/i2c-core-base.c Alain Volmat 2020-04-30 652 dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 653 trace_i2c_device_probe_complete(&client->dev, status, err_reason); dc94c3bf033524a drivers/i2c/i2c-core-base.c Mohammad Gomaa 2025-08-17 654 50c3304a5e1e521 drivers/i2c/i2c-core.c Hans Verkuil 2008-03-12 655 return status; f37dd80ac2a67e4 drivers/i2c/i2c-core.c David Brownell 2007-02-13 656 } ^1da177e4c3f415 drivers/i2c/i2c-core.c Linus Torvalds 2005-04-16 657 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki