From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8D74C46C4AE; Tue, 4 Aug 2026 13:38:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785850725; cv=none; b=rmQeEAtnEYs5pjj1I33v7oxumMVl4VltORdT5bop3En23CIZgqBdJzN2y+rpaMcqG9813sOJwm1XHeWB0bPFquQEvrHMsIHvOb5CEgLopzAxf/QM+5qjMI/zmyAqBGtHHPTyxySOGS0uJ9MC0Wq5dtBDjktXpSN6ChuxNZSo+Ho= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785850725; c=relaxed/simple; bh=UaMLbZ0IzXimDx+Nc2/VUT4yVPyc/sRZ6Ky7fCkM2UA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PwXaqXlPt2iMNttI3maskN4u6DKkFmHES9nERLXS4kYU21jw+bpaXY3+sjwQ6sVYje3Ggw1iiaM6mN7fTvTcn8kqbfmgFAoTQe1J/7bApa59IcjeebZzF2k7tzd26z3dSp0iiH/npnCwZYVieNKkM6cijWIcwLLLWlq5dvrh4Dg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=elWlTu7D; arc=none smtp.client-ip=198.175.65.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="elWlTu7D" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1785850725; x=1817386725; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=UaMLbZ0IzXimDx+Nc2/VUT4yVPyc/sRZ6Ky7fCkM2UA=; b=elWlTu7DqSKrIBruryIugTuxD0HVOz6klVQjz7sv0mdZqz2nmdylzOn0 MleS+ow2B4c5r2CKd/dzZJEG9mG2jWgxgCyGD4s/I68KD5T3mbZa+NgeW W8fuKZGPQOh6H0BvpIu58WuUAgR2wcZgbAnXpPjRp3tSkOEP0m0a9W1BG UfE2Q7GUwPpumI1hwPGyaQfrUhCrnzi/awGBsDnrXc4RUTyFbU6pdjgC+ 0TnSj73qm3w1OGCCzQ9LLddJcMByWxn7vNWLPFUO7g28kZi13gHDLoeY6 2kTWkfbzPkxALBj9sqkn1UPyBMOP5NGYXs+p8w9KhLxG8MsF2fcv28/Ke w==; X-CSE-ConnectionGUID: GutXkr/NS+ibP2sakxbv1A== X-CSE-MsgGUID: +M8oM0eMTXuOh/CccoQeRw== X-IronPort-AV: E=McAfee;i="6800,10657,11864"; a="86410149" X-IronPort-AV: E=Sophos;i="6.25,204,1779174000"; d="scan'208";a="86410149" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2026 06:38:44 -0700 X-CSE-ConnectionGUID: wQ3+E0FYQy+92Wey6uHwCA== X-CSE-MsgGUID: 7ppwyp02T+S1JLi9peccvg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,204,1779174000"; d="scan'208";a="263501033" Received: from mkosciow-mobl1.ger.corp.intel.com (HELO ahunter6-desk) ([10.245.245.132]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2026 06:38:42 -0700 From: Adrian Hunter To: alexandre.belloni@bootlin.com Cc: Frank.Li@nxp.com, akhilrajeev@nvidia.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 V3 09/14] i3c: master: Report wakeup events for IBIs Date: Tue, 4 Aug 2026 16:38:05 +0300 Message-ID: <20260804133810.184905-10-adrian.hunter@intel.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260804133810.184905-1-adrian.hunter@intel.com> References: <20260804133810.184905-1-adrian.hunter@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 Content-Transfer-Encoding: 8bit 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 and V3: None drivers/i3c/master.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index e6b320da475e..8c9e62e6f146 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -3385,6 +3385,9 @@ 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 @@ -3398,6 +3401,9 @@ 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