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{ "id": 1839979, "url": "http://patchwork.ozlabs.org/api/covers/1839979/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/cover/20230926-gpio-led-trigger-dt-v2-0-e06e458b788e@linaro.org/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20230926-gpio-led-trigger-dt-v2-0-e06e458b788e@linaro.org>", "list_archive_url": null, "date": "2023-09-26T21:48:10", "name": "[v2,0/3] Rewrite GPIO LED trigger to use trigger-sources", "submitter": { "id": 7055, "url": "http://patchwork.ozlabs.org/api/people/7055/?format=api", "name": "Linus Walleij", "email": "linus.walleij@linaro.org" }, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/cover/20230926-gpio-led-trigger-dt-v2-0-e06e458b788e@linaro.org/mbox/", "series": [ { "id": 375009, "url": "http://patchwork.ozlabs.org/api/series/375009/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=375009", "date": "2023-09-26T21:48:11", "name": "Rewrite GPIO LED trigger to use trigger-sources", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/375009/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/1839979/comments/", "headers": { "Return-Path": "<linux-gpio-owner@vger.kernel.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=lsTrmsIP;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2620:137:e000::1:20; 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a=rsa-sha256; c=relaxed/relaxed;\n d=linaro.org; s=google; t=1695764895; x=1696369695;\n darn=vger.kernel.org;\n h=cc:to:content-transfer-encoding:mime-version:message-id:date\n :subject:from:from:to:cc:subject:date:message-id:reply-to;\n bh=XtIGAJAIn5DFyAAok8KJTgELmOKMBX9AjGhOfdYwP9U=;\n b=lsTrmsIPu0gmn8AcD60ok0KEm1Hg/8coLlGwBA4bCQN/ZCAzNgtj6zXpZUEN1Q0e/S\n ZmIt4HSagXgR59rsCtpRrbJIOECxGJ1WmYzU6z0XT9qiNjz2OUOX4viNs70806Tli21s\n vG6YBqXBP4KHzGhAwS7ioHianYwlD1guOZYi6/fr1SF1ZnBMDKyPmpzSMNNbsmSiBtvp\n ij75kfDitb3p/wRv6vm4sJgwROJoqir3uE+apqB3giHrQrCHw8bwgrfDudk6hS1AWua8\n 8GpUcai+VMu2P7kzIBfpQLB4MRyzMzpD7c3LoPTyxgnVMmF2Ey/uHpN/6bgEt0tsWqpQ\n qCWg==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20230601; t=1695764895; x=1696369695;\n h=cc:to:content-transfer-encoding:mime-version:message-id:date\n :subject:from:x-gm-message-state:from:to:cc:subject:date:message-id\n :reply-to;\n bh=XtIGAJAIn5DFyAAok8KJTgELmOKMBX9AjGhOfdYwP9U=;\n b=ZsZwNBnVBW/SyTLgbXQXMtDsOMuI8DmCAX096w0UrIwoP+tHey9+CyuFfk2O7VdOZG\n LGcvnRPeMTpxzJDe8ohDBeE+0Lq8JuxKloLAnRcGkigR0yXCpiTkhFdhK2ZufiqGRadb\n N9rGBPaZbUPi9rfWe8yUpLnkhKG1/WCDNzRfb9CNT/vqKawaO5GXxdK8YYHRfZLcUM0I\n nz28dC7+PpAKuAIqvJaPmAMIfQyyukXsb9BMvHvW/l0y2rnvp8ZLCfdGmbsxuZqVi8LX\n yeIlAJIknzSucagpGRyiLj0MCJXTYh4XYuV4qlf4YuwU/dGaIaKKzvRdFayfE7noBUei\n W9vw==", "X-Gm-Message-State": "AOJu0YxCf3EbbYku10btIEIaYCiys8nBYs/IzV2cx27xE/5u5UgB/fhP\n Sc2Xa7I3Ld6VvFW//oxA5IXFoQ==", "X-Google-Smtp-Source": "\n AGHT+IGZJN6D1LppUajBIqaDv5vMWuxw8Tz7SHNssCZTCzblqzQErVamJzS0AJFKZ15Ta+fT3NcmDg==", "X-Received": "by 2002:ac2:4c31:0:b0:500:d8d6:fc5a with SMTP id\n u17-20020ac24c31000000b00500d8d6fc5amr33695lfq.37.1695764894943;\n Tue, 26 Sep 2023 14:48:14 -0700 (PDT)", "From": "Linus Walleij <linus.walleij@linaro.org>", "Subject": "[PATCH v2 0/3] Rewrite GPIO LED trigger to use trigger-sources", "Date": "Tue, 26 Sep 2023 23:48:10 +0200", "Message-Id": "<20230926-gpio-led-trigger-dt-v2-0-e06e458b788e@linaro.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAJpRE2UC/22NQQqDMBBFryKz7pRkxBa76j2Ki9iMcUCMTIK0i\n HdvKnTX5Xvw398gsQonuFUbKK+SJM4F6FTBc3RzYBRfGMhQbVprMSwScWKPWSUEVvQZW6K+Z7K\n DI4KyXJQHeR3VR1d4lJSjvo+T1X7tr0d/e6tFg7ZvDNfX5uK9u08yO43nqAG6fd8/I9dZIbcAA\n AA=", "To": "=?utf-8?q?Jan_Kundr=C3=A1t?= <jan.kundrat@cesnet.cz>,\n Pavel Machek <pavel@ucw.cz>, Lee Jones <lee@kernel.org>,\n Rob Herring <robh+dt@kernel.org>,\n Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,\n Conor Dooley <conor+dt@kernel.org>,\n Jacek Anaszewski <jacek.anaszewski@gmail.com>", "Cc": "linux-leds@vger.kernel.org, linux-gpio@vger.kernel.org,\n devicetree@vger.kernel.org,\n Linus Walleij <linus.walleij@linaro.org>,\n Conor Dooley <conor.dooley@microchip.com>", "X-Mailer": "b4 0.12.3", "X-Spam-Status": "No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,\n DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,\n SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6", "X-Spam-Checker-Version": "SpamAssassin 3.4.6 (2021-04-09) on\n lindbergh.monkeyblade.net", "Precedence": "bulk", "List-ID": "<linux-gpio.vger.kernel.org>", "X-Mailing-List": "linux-gpio@vger.kernel.org" }, "content": "This rewrites the platform-data GPIO LED trigger to instead\nuse fwnode trigger-sources to describe the LED used.\n\nThis will work out-of-the-box with e.g. device tree.\n\nTested with real hardware by modifying a device tree adding\ntrigger-sources to a LED and trigger-source-cells to\na gpio chip, setting the trigger to a pushbutton. It works\nlike a charm, once the trigger is set to \"gpio\".\n\nAdding trigger-sources to GPIO chips in a simple way requires\nthis patch to be merged to the generic dtschema:\nhttps://lore.kernel.org/linux-devicetree/20230916-gpio-triggers-v1-1-6e5052bead9a@linaro.org/\n\nSigned-off-by: Linus Walleij <linus.walleij@linaro.org>\n---\nChanges in v2:\n- Add a quirk to gpiolib-of to allow to read out trigger-sources as\n any regular GPIO.\n- Fix a use-after-free bug found by Dan Carpenter.\n- Tested on hardware.\n- Link to v1: https://lore.kernel.org/r/20230912-gpio-led-trigger-dt-v1-0-1b50e3756dda@linaro.org\n\n---\nLinus Walleij (3):\n gpiolib: of: Allow \"trigger-sources\" to reference a GPIO\n dt-bindings: leds: Mention GPIO triggers\n leds: triggers: gpio: Rewrite to use trigger-sources\n\n Documentation/devicetree/bindings/leds/common.yaml | 2 +\n drivers/gpio/gpiolib-of.c | 28 +++++\n drivers/leds/trigger/Kconfig | 5 +-\n drivers/leds/trigger/ledtrig-gpio.c | 137 ++++++---------------\n 4 files changed, 71 insertions(+), 101 deletions(-)\n---\nbase-commit: 8eb1c4d9b44873d30efc1846148944534f4a017d\nchange-id: 20230911-gpio-led-trigger-dt-922bbe21fa22\n\nBest regards," }