{"id":806329,"url":"http://patchwork.ozlabs.org/api/1.0/patches/806329/?format=json","project":{"id":56,"url":"http://patchwork.ozlabs.org/api/1.0/projects/56/?format=json","name":"OpenBMC development","link_name":"openbmc","list_id":"openbmc.lists.ozlabs.org","list_email":"openbmc@lists.ozlabs.org","web_url":"http://github.com/openbmc/","scm_url":"","webscm_url":""},"msgid":"<20170828001711.19662-2-andrew@aj.id.au>","date":"2017-08-28T00:17:10","name":"[v2,1/2] dt-bindings: leds: gpio: Add optional retain-state-shutdown property","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":true,"hash":"1798225d1607a2a0c0d8ab545aea3f39502446d9","submitter":{"id":68332,"url":"http://patchwork.ozlabs.org/api/1.0/people/68332/?format=json","name":"Andrew Jeffery","email":"andrew@aj.id.au"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/openbmc/patch/20170828001711.19662-2-andrew@aj.id.au/mbox/","series":[{"id":53,"url":"http://patchwork.ozlabs.org/api/1.0/series/53/?format=json","date":"2017-08-28T00:17:09","name":"leds: gpio: Allow retaining state on shutdown","version":2,"mbox":"http://patchwork.ozlabs.org/series/53/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/806329/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","openbmc@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","openbmc@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xgXS45L6Fz9s7v\n\tfor ;\n\tMon, 28 Aug 2017 10:18:44 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xgXS445BkzDqh0\n\tfor ;\n\tMon, 28 Aug 2017 10:18:44 +1000 (AEST)","from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com\n\t[66.111.4.26])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xgXRP0WMyzDqYx\n\tfor ; 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s=fm1; bh=f2BkUlDyMX57IrbII8xjZq11RcSmikYwYAsMWtUcS\n\tYI=; b=Dl9h4bKa3HQsw9+q0mbrDsqM9WV7riZHouAcOOEihQuIkw6ISJ/Zc0O6N\n\twnQL7p4ahI6U231raQUpHN7m5kCJa+SeFlBfcM/0kpj5DtzEX+0gt1jQqXU+2jp7\n\t1VWUEVGeBPn7HAuGTBeme+yEeltGGYYTwhJg3c1zowzl/IKTyaUEbO3Fdvq6mNSH\n\t3t36OUrXs41TzW8GlgeIHQMq576dLUj5rSfUu7utr+gYmgiTuMjfYexcxlKUL4zJ\n\tQH1GuUfm2lzKcl1wVWXr+fbz9eJz3u5V2xe0jbbN72FLfhjOl2fUVTfF5AsToFCh\n\tlXYGMFdAot52b4KyZ+kVITuNw/KMA=="],"X-ME-Sender":"","X-Sasl-enc":"+GjhHp1iqk2VRWlwOmqnqqRtqZgPH4lkj1s8xIGc7TtB 1503879485","From":"Andrew Jeffery ","To":"linux-leds@vger.kernel.org","Subject":"[PATCH v2 1/2] dt-bindings: leds: gpio: Add optional\n\tretain-state-shutdown property","Date":"Mon, 28 Aug 2017 09:47:10 +0930","Message-Id":"<20170828001711.19662-2-andrew@aj.id.au>","X-Mailer":"git-send-email 2.11.0","In-Reply-To":"<20170828001711.19662-1-andrew@aj.id.au>","References":"<20170828001711.19662-1-andrew@aj.id.au>","X-BeenThere":"openbmc@lists.ozlabs.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"Development list for OpenBMC ","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"mark.rutland@arm.com, devicetree@vger.kernel.org,\n\tAndrew Jeffery , openbmc@lists.ozlabs.org,\n\tlinux-kernel@vger.kernel.org, robh+dt@kernel.org, rpurdie@rpsys.net, \n\tjacek.anaszewski@gmail.com, pavel@ucw.cz","Errors-To":"openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org","Sender":"\"openbmc\"\n\t"},"content":"On Baseboard Management Controller (BMC) systems it's sometimes\nnecessary for a LED to retain its state across a BMC reset (which is\nindependent of the host system state). Add a devicetree property to\ndescribe this behaviour. The property would typically be used in\nconjunction with 'default-state = \"keep\"'.\n\nSigned-off-by: Andrew Jeffery \n---\n Documentation/devicetree/bindings/leds/leds-gpio.txt | 3 +++\n 1 file changed, 3 insertions(+)","diff":"diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt\nindex 76535ca37120..a48dda268f81 100644\n--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt\n+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt\n@@ -18,6 +18,9 @@ LED sub-node properties:\n see Documentation/devicetree/bindings/leds/common.txt\n - retain-state-suspended: (optional) The suspend state can be retained.Such\n as charge-led gpio.\n+- retain-state-shutdown: (optional) Retain the state of the LED on shutdown.\n+ Useful in BMC systems, for example when the BMC is rebooted while the host\n+ remains up.\n - panic-indicator : (optional)\n see Documentation/devicetree/bindings/leds/common.txt\n \n","prefixes":["v2","1/2"]}