From patchwork Sun Jan 14 22:52:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 13519269 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 705C4C4707B for ; Sun, 14 Jan 2024 22:52:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=xbSbJMj1l8FMxZilmP2NC8A40j4uRffEVwCR/FdY4AQ=; b=QLQlHBcbIMTOl+ 0HHcR9yF98gLDlvXE/yNVYgFEGrAgY0Gx5lS1vzaPoHZiPQDmnZJZ2YYYLjXQy2OfY63XW83av70W YeNCmjbMagAe5Ba65fVQV9hVU2gCxaAmJlCPP2klZ3nn6OMe1SKGFnlz2+giKmroUKd7D8d/eHmVB 147Yp4GWKYrpNsZU0bdug61a+OWaSAiaBo1Puj/PFikYTMOi3zWgXoFcM0dxW/l9jqpRXsR6z2cA6 tsOYfQfqynm2wVJYlq1KDac3bHDyyRTds5DiKLWlIwt10mPgVjLpaCbr/JakTJZSSMVDZ5KA9ugeL ISr06dRepdfks6fppDQg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rP9LY-007Svw-1T; Sun, 14 Jan 2024 22:52:52 +0000 Received: from relay2-d.mail.gandi.net ([217.70.183.194]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rP9LU-007SuA-1w for linux-i3c@lists.infradead.org; Sun, 14 Jan 2024 22:52:50 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id CA69440002; Sun, 14 Jan 2024 22:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1705272763; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=E+pmWiFAk9xDSX3xHw8tyfQSE8GLes3W457god8mEvU=; b=cxMyM7oCZSziHqrnDSE/nfEKYLW0fXqfDBpGGENQQPEuhUNCwFwSAu0y+EMs7OhvVo0fKa DTYGi4nUcDKVXHasP2EWXiJ7F1EhVxuqquW8tpHDTis9+86a8C9spd83ty1qlKbAL2wccr VSOxNdzRdSKi7vMgSkB8FemMfOiQTZq9ZLZRY1xzIpYbNCXIvYaS5ZOSUftnJJKHYQzLT/ 2RnSR+f6VaYg8GafFi3eFNA9W3pCJmXAuckix2LHpTPN2BhSiqXuVwYRbksTwqnaj/C7uT ZqbZ9w3kqMFTXfKLwGdsAH604MvxAB+AjF8OXlq1/oXfGT6XJUb2sGIplZUlng== From: alexandre.belloni@bootlin.com To: Alexandre Belloni Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] i3c: document hotjoin sysfs entry Date: Sun, 14 Jan 2024 23:52:25 +0100 Message-ID: <20240114225232.140860-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-GND-Sasl: alexandre.belloni@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240114_145248_946480_54415AC1 X-CRM114-Status: UNSURE ( 8.32 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org From: Alexandre Belloni The hotjoin syfs entry allows to enable or disable Hot-Join on the Current Controller of the I3C Bus. Signed-off-by: Alexandre Belloni --- Documentation/ABI/testing/sysfs-bus-i3c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-i3c b/Documentation/ABI/testing/sysfs-bus-i3c index e5248fd67a56..c812ab180ff4 100644 --- a/Documentation/ABI/testing/sysfs-bus-i3c +++ b/Documentation/ABI/testing/sysfs-bus-i3c @@ -88,6 +88,21 @@ Description: This entry describes the HDRCAP of the master controller driving the bus. +What: /sys/bus/i3c/devices/i3c-/hotjoin +KernelVersion: 6.8 +Contact: linux-i3c@vger.kernel.org +Description: + I3C’s Hot-Join mechanism allows an I3C Device to inform the + Active Controller that a newly-joined Target is present on the + I3C Bus and is ready to receive a Dynamic Address, in order to + become fully functional on the Bus. Hot-Join is used when the + Target is mounted on the same I3C bus and remains depowered + until needed or until the Target is physically inserted into the + I3C bus + + This entry allows to enable or disable Hot-join of the Current + Controller driving the bus. + What: /sys/bus/i3c/devices/i3c-/- KernelVersion: 5.0 Contact: linux-i3c@vger.kernel.org