{"id":812579,"url":"http://patchwork.ozlabs.org/api/patches/812579/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/1505160270-10650-4-git-send-email-philipp.tomsich@theobroma-systems.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/projects/18/?format=json","name":"U-Boot","link_name":"uboot","list_id":"u-boot.lists.denx.de","list_email":"u-boot@lists.denx.de","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<1505160270-10650-4-git-send-email-philipp.tomsich@theobroma-systems.com>","list_archive_url":null,"date":"2017-09-11T20:04:11","name":"[U-Boot,v3,03/19] dm: timer: handle being called before dm_root is ready","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"7617525b5e45a13cd486646de191b68aa61fa881","submitter":{"id":53488,"url":"http://patchwork.ozlabs.org/api/people/53488/?format=json","name":"Philipp Tomsich","email":"philipp.tomsich@theobroma-systems.com"},"delegate":{"id":69486,"url":"http://patchwork.ozlabs.org/api/users/69486/?format=json","username":"ptomsich","first_name":"Philipp","last_name":"Tomsich","email":"philipp.tomsich@theobroma-systems.com"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/1505160270-10650-4-git-send-email-philipp.tomsich@theobroma-systems.com/mbox/","series":[{"id":2559,"url":"http://patchwork.ozlabs.org/api/series/2559/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=2559","date":"2017-09-11T20:04:11","name":"rockchip: convert the RK3368 to OF_LIVE and validate on the RK3368-uQ7","version":3,"mbox":"http://patchwork.ozlabs.org/series/2559/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/812579/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/812579/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.denx.de\n\t(client-ip=81.169.180.215; helo=lists.denx.de;\n\tenvelope-from=u-boot-bounces@lists.denx.de;\n\treceiver=)","Received":["from lists.denx.de (dione.denx.de [81.169.180.215])\n\tby ozlabs.org (Postfix) with ESMTP id 3xrf6G4K9Fz9s0Z\n\tfor ;\n\tTue, 12 Sep 2017 06:04:54 +1000 (AEST)","by lists.denx.de (Postfix, from userid 105)\n\tid 4AB7BC21F90; Mon, 11 Sep 2017 20:04:46 +0000 (UTC)","from lists.denx.de (localhost [IPv6:::1])\n\tby lists.denx.de (Postfix) with ESMTP id E0788C21E31;\n\tMon, 11 Sep 2017 20:04:43 +0000 (UTC)","by lists.denx.de (Postfix, from userid 105)\n\tid 10829C21E64; Mon, 11 Sep 2017 20:04:42 +0000 (UTC)","from mail.theobroma-systems.com (vegas.theobroma-systems.com\n\t[144.76.126.164])\n\tby lists.denx.de (Postfix) with ESMTPS id AE96CC21DA4\n\tfor ; Mon, 11 Sep 2017 20:04:42 +0000 (UTC)","from [86.59.122.178] (port=59228 helo=android.lan)\n\tby mail.theobroma-systems.com with esmtpsa\n\t(TLS1.2:RSA_AES_128_CBC_SHA256:128)\n\t(Exim 4.80) (envelope-from )\n\tid 1drUwh-0003kn-Ab; Mon, 11 Sep 2017 22:04:39 +0200"],"X-Spam-Checker-Version":"SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de","X-Spam-Level":"","X-Spam-Status":"No, score=0.0 required=5.0 tests=none autolearn=unavailable\n\tautolearn_force=no version=3.4.0","From":"Philipp Tomsich ","To":"u-boot@lists.denx.de","Date":"Mon, 11 Sep 2017 22:04:11 +0200","Message-Id":"<1505160270-10650-4-git-send-email-philipp.tomsich@theobroma-systems.com>","X-Mailer":"git-send-email 2.1.4","In-Reply-To":"<1505160270-10650-1-git-send-email-philipp.tomsich@theobroma-systems.com>","References":"<1505160270-10650-1-git-send-email-philipp.tomsich@theobroma-systems.com>","Cc":"Vlad Zakharov ,\n\tZakharov Vlad ,\n\tKlaus Goger ","Subject":"[U-Boot] [PATCH v3 03/19] dm: timer: handle being called before\n\tdm_root is ready","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.18","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" "},"content":"When used with bootstage recording, dm_timer_init may be called\nsurprisingly early: i.e. before dm_root is ready. To deal with\nthis case, we explicitly check for this condition and return\n-EAGAIN to the caller (refer to drivers/timer/rockchip_timer.c\nfor a case where this is needed/used).\n\nSigned-off-by: Philipp Tomsich \nReviewed-by: Simon Glass \nAcked-by: Philipp Tomsich \n---\n\nChanges in v3: None\nChanges in v2: None\n\n drivers/timer/timer-uclass.c | 7 +++++++\n 1 file changed, 7 insertions(+)","diff":"diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c\nindex 62d6f0b..45397b2 100644\n--- a/drivers/timer/timer-uclass.c\n+++ b/drivers/timer/timer-uclass.c\n@@ -92,6 +92,13 @@ int notrace dm_timer_init(void)\n \tif (gd->timer)\n \t\treturn 0;\n \n+\t/*\n+\t * Directly access gd->dm_root to suppress error messages, if the\n+\t * virtual root driver does not yet exist.\n+\t */\n+\tif (gd->dm_root == NULL)\n+\t\treturn -EAGAIN;\n+\n #if !CONFIG_IS_ENABLED(OF_PLATDATA)\n \t/* Check for a chosen timer to be used for tick */\n \tnode = ofnode_get_chosen_node(\"tick-timer\");\n","prefixes":["U-Boot","v3","03/19"]}