From mboxrd@z Thu Jan 1 00:00:00 1970 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 A7277C53219 for ; Tue, 28 Jul 2026 15:53:30 +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:References:In-Reply-To: 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: List-Owner; bh=/AtRjarXIqNw4z/MAl4Y/H0Tvq6PQ2Lds/ILdy78cng=; b=u5U75fFxBISfTZ ZTnrD7QxtwxeY9E4vNfmibe42Fxswm1/7O0OcF9HHP62Pn/8ylglAixyzRJh0W0OANRfBd2ID68mm K7Y1117Lw+W2NSpQOxDIump7phwo2tIXbRZrFGg+BG7pTTgxZZE2T2voPcP5tHYqZuWGh2Ddffg3n hRQ13CrGeAViyAgkIZEd/mnHFbcNBKHBUBkxihxX07WMK9jrxAVZTGYIhBTlrJfNrgXJunmMS5t54 EluQXnPd/5lCDiY46BwMlJ/TlRSkkv7kD+BQupc5ake40BP+eMdTIGaS6E0wl7dn/qs7pQfQZHEXV J9+N9hqzWMxahFAymKVA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wok7W-00000005jGX-1Zp5; Tue, 28 Jul 2026 15:53:30 +0000 Received: from mgamail.intel.com ([198.175.65.21]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wok7T-00000005jEm-3rBd for linux-i3c@lists.infradead.org; Tue, 28 Jul 2026 15:53:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1785254007; x=1816790007; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Rs3eLDm/z0MDQyS8v2EoxoDJjXfLNNwsxGZf+12I8AU=; b=YBm/c7M4Nm4QgbcrWdQpnRnEY/WuxEjkhuanXTgltGmIxu7swhCBtkVH oa1wcgP3eDKdRZlK38JuRp8hmeFFufHztFdPscksoKOY0vyjPAouaRACs /Umq441W0HUMuxGVStjcpJ30buPHr8+VHgNk5T3dT9ons6f9WxgER7ST7 /SMpglkALoWBXakY90VOeedZZuhokvBNnI82yX84A7QGR+3blkfmF8mKe MetaoU6UxWwuJG18u9YweCJWwJ1hDxvfkUZfxjDWUVZbM/JqSCsM93UO0 u8XjggEUT6HuXJr027DuOQLdZXK2saDpkcz8nG882sWfVf/mcWWJwYvAi g==; X-CSE-ConnectionGUID: jNOPl8PvRDef/9/W5VmSzQ== X-CSE-MsgGUID: iQuSHXh3R7azSVnELlxL5Q== X-IronPort-AV: E=McAfee;i="6800,10657,11859"; a="85696575" X-IronPort-AV: E=Sophos;i="6.25,190,1779174000"; d="scan'208";a="85696575" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jul 2026 08:53:27 -0700 X-CSE-ConnectionGUID: 4SQ7yB0wR32ZjYvt+EYDFw== X-CSE-MsgGUID: 97EhECoDS9isdhJDyCVbSA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,190,1779174000"; d="scan'208";a="255817524" Received: from mkosciow-mobl1.ger.corp.intel.com (HELO ahunter6-desk) ([10.245.244.126]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jul 2026 08:53:24 -0700 From: Adrian Hunter To: alexandre.belloni@bootlin.com Cc: Frank.Li@nxp.com, rafael@kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH V2 3/8] i3c: master: Report wakeup events for IBIs Date: Tue, 28 Jul 2026 18:53:03 +0300 Message-ID: <20260728155308.142713-4-adrian.hunter@intel.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260728155308.142713-1-adrian.hunter@intel.com> References: <20260728155308.142713-1-adrian.hunter@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo, Business Identity Code: 0357606 - 4, Domiciled in Helsinki X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260728_085328_044114_E4F58ADC X-CRM114-Status: UNSURE ( 9.63 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org An I3C device configured as a wakeup source can wake the system by generating an In-Band Interrupt (IBI). When an IBI is queued for processing, record a wakeup event for the device if wakeup is enabled. Use a 100 ms processing interval to give the I3C device driver time to process the IBI. Signed-off-by: Adrian Hunter --- Changes in V2: None drivers/i3c/master.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index cf3345265ac0..9d56ca08569a 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -3085,6 +3085,9 @@ static void i3c_master_unregister_i3c_devs(struct i3c_master_controller *master) } } +/* Approximate time for IBI handler to run */ +#define I3C_WAKEUP_PROCESSING_TIME_MS 100 + /** * i3c_master_queue_ibi() - Queue an IBI * @dev: the device this IBI is coming from @@ -3098,6 +3101,9 @@ void i3c_master_queue_ibi(struct i3c_dev_desc *dev, struct i3c_ibi_slot *slot) if (!dev->ibi || !slot) return; + if (device_may_wakeup(&dev->dev->dev)) + pm_wakeup_event(&dev->dev->dev, I3C_WAKEUP_PROCESSING_TIME_MS); + atomic_inc(&dev->ibi->pending_ibis); queue_work(dev->ibi->wq, &slot->work); } -- 2.53.0 -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c