From nobody Wed Dec 17 02:55:18 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 2235DD51C; Sun, 23 Jun 2024 09:32:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719135145; cv=none; b=Hv2wlgdtta1u4cx6LJKyfAm/iK+9KuLl9Ys34wJs3Pi9HTklSDvj5ic25XTcNTTa3vf3N71+216rRlvaMzm7Wg2TXWMVyO3gDMdtGI+PORQYxYJomvFHVkTt8PJO7+yr5ZsPzZ1K8u6u5DvMIry34MUhUvflhDCqtM5Q03zdUic= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719135145; c=relaxed/simple; bh=o+ppC9cqSZaFmTTXQs9RvqE76Ildur/5zLcTVfC39hE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=X8Tt6/RXbQfHtDp4+huK2NhcNsx6AN8spF8XOx3D+O6XjrFMiwzW1fWKknjnF+kizA4+dyyc7uzysaczw1uZGa8TvnDpOv0dZ1iQ50SveekYRBgZdDExjppaWaWVXLIwSFPeZ4oQC4GTGiAeB1FI6Vh4MORplCL89Jqu0iq/XYo= 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=Zjj8sv7u; arc=none smtp.client-ip=198.175.65.21 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="Zjj8sv7u" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1719135143; x=1750671143; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=o+ppC9cqSZaFmTTXQs9RvqE76Ildur/5zLcTVfC39hE=; b=Zjj8sv7uyLnhIjxtcYYh9IUiFQ2R/oreF6vD8IfYMp/L3zxLsgilwZwG VXAV/raj1NHKjUvzoO2w5UQqP6TyFPAQW/98CnkTtf/fNKrT9hYHZpHeV oXnG1EBJUSGnM1WCn4x9ZVkeS1flMQLNkXwIbJO7lLo8WcyCJbzQvVc4c d9SpbyEM7NP8AFu+ENDLb/dG7Q315zkAYKrxatz/KyKqUQhAb9ol5feha vL/Ll9Qrf7wsQZwvOO2L+UKpmW+zb6PQps9dVP/aKeXQjNNN8nqMiEhWC I5oS30ciJPwWv4dnzi9ngNNXYbGl131k1FB9M5H/oQP9JBfjAqGGFMdeG w==; X-CSE-ConnectionGUID: T6dKxOzmQnGlxLU0TuCQOQ== X-CSE-MsgGUID: NG2ukBj/SBagNhIO6k83VQ== X-IronPort-AV: E=McAfee;i="6700,10204,11111"; a="16089078" X-IronPort-AV: E=Sophos;i="6.08,259,1712646000"; d="scan'208";a="16089078" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2024 02:32:23 -0700 X-CSE-ConnectionGUID: 0zZQzj9EQYqUsncoeReyXA== X-CSE-MsgGUID: 3C4DSRbIRtWyvz8FuqJd1g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,259,1712646000"; d="scan'208";a="73761700" Received: from wentongw-optiplex-7000.sh.intel.com ([10.239.154.127]) by orviesa002.jf.intel.com with ESMTP; 23 Jun 2024 02:32:21 -0700 From: Wentong Wu To: sakari.ailus@linux.intel.com, tomas.winkler@intel.com, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, Wentong Wu , stable@vger.kernel.org, Jason Chen Subject: [PATCH 1/6] mei: vsc: Enhance IVSC chipset reset toggling Date: Sun, 23 Jun 2024 17:30:51 +0800 Message-Id: <20240623093056.4169438-2-wentong.wu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240623093056.4169438-1-wentong.wu@intel.com> References: <20240623093056.4169438-1-wentong.wu@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Implementing the hardware recommendation to toggle the chipset reset. Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: stable@vger.kernel.org # for 6.8+ Signed-off-by: Wentong Wu Tested-by: Jason Chen --- drivers/misc/mei/vsc-tp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c index e6a98dba8a73..dcab5174bf00 100644 --- a/drivers/misc/mei/vsc-tp.c +++ b/drivers/misc/mei/vsc-tp.c @@ -350,6 +350,8 @@ void vsc_tp_reset(struct vsc_tp *tp) disable_irq(tp->spi->irq); =20 /* toggle reset pin */ + gpiod_set_value_cansleep(tp->resetfw, 1); + msleep(VSC_TP_RESET_PIN_TOGGLE_INTERVAL_MS); gpiod_set_value_cansleep(tp->resetfw, 0); msleep(VSC_TP_RESET_PIN_TOGGLE_INTERVAL_MS); gpiod_set_value_cansleep(tp->resetfw, 1); --=20 2.34.1