From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) (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 7D5D4C8FD; Tue, 2 Jan 2024 09:46:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="kfBQBv/l" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704188799; x=1735724799; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=bECZ7O/z8Tc/UmhXEp68O58/Z4Jph3I5VYLasVMhaxg=; b=kfBQBv/lrT7kBwX6xjDAwoTOEFfpoHvhizxG4ei8mpqp9aK0MoaAKNLj Bbws5UytIbY+a+1/LshMfymDpO1xhY2966ENSlLKeodRunvU8d/hSDvmF /BmJpFpYqixLQuZ32of7OgGN02Y46yBHLDX6EojXT3hUVHWhmN9bFQJst 2hRwS7P3SRgNz/iOZyHh4t9TR8ggY45mHLTS1uNE8cEFayqWklHXDgMUI 1oNOeYGrlfwpPAnec1RYqQlaWagpW7gQRchj0mUCNIJGA9P3J3LsX/Oq3 I/HPNILtayGpEa8BOXFPnGp71NmhguDDzTg5yHVomAeak04UjlwrC4rPs w==; X-IronPort-AV: E=McAfee;i="6600,9927,10940"; a="400664998" X-IronPort-AV: E=Sophos;i="6.04,324,1695711600"; d="scan'208";a="400664998" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jan 2024 01:46:38 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10940"; a="923179865" X-IronPort-AV: E=Sophos;i="6.04,324,1695711600"; d="scan'208";a="923179865" Received: from kuha.fi.intel.com ([10.237.72.185]) by fmsmga001.fm.intel.com with SMTP; 02 Jan 2024 01:46:35 -0800 Received: by kuha.fi.intel.com (sSMTP sendmail emulation); Tue, 02 Jan 2024 11:46:34 +0200 Date: Tue, 2 Jan 2024 11:46:34 +0200 From: Heikki Krogerus To: Suniel Mahesh Cc: Guenter Roeck , Kyle Tso , Jagan Teki , USB list , linux-kernel@vger.kernel.org Subject: Re: USB PD TYPEC - FUSB302B port controller hard reset issue Message-ID: References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Suniel, On Tue, Dec 26, 2023 at 04:14:48PM +0530, Suniel Mahesh wrote: > Hi Guenter Roeck / Heikki Krogerus and all, > > 1. > I am testing USB TYPEC PD on a Rockchip Rk3399 SOC based target which has a > FUSB302B TYPEC port controller. > > 2. > My source is a wall charger which is based on Gallium Nitride (GaN II) > technology and has four ports as follows: > > USB-C1: 100W PD3.0, 5V/3A, 9V/3A, 12V/3A, 15V/3A. 20V/5A. PPS: 3.3V-11V/4A > USB-C2: 100W PD3.0. 5V/3A. 9V/3A. 12V/3A, 15V/3A. 20V/5A PPS:3.3-11V/4A > USB-C3: 20W PD3.0, 5V/3A, 9V/2.22A, 12V/1.67A > USB-A: 18W QC3.0. 5V/3A, 9V/2A, 12V/1.5A > > 3. > i am using latest linux-next and enabled all the relevant configs, > especially: > CONFIG_TYPEC=y > CONFIG_TYPEC_TCPM=y > CONFIG_TYPEC_FUSB302=y Which kernel version? > 4. > DT node is as follows when i use USB-C1 of wall charger: > > connector { > compatible = "usb-c-connector"; > label = "USB-C"; > data-role = "dual"; > power-role = "sink"; > try-power-role = "sink"; > op-sink-microwatt = <1000000>; > sink-pdos = PDO_FIXED_USB_COMM) > PDO_FIXED(12000, 3000, > PDO_FIXED_USB_COMM)>; > }; What do you mean by "when i use USB-C1..."? Why is the above valid only then and not with the other PD contracts? > Issue: > The board power well most of the time, but may be in 1 out of 5 cold boots, > FUSB302B is getting a hard reset, as > FUSB302B INTERRUPTA register bit I_HARDRST is getting set. > > After some digging, found out that the above behaviour is accounted to when > something is wrong with the CRC of > the received packet (SOP - Start of Packet) How did you determine that the problem is a bad CRC? > This behaviour is seen i.e. FUSB302B getting a hard reset more on the > USB-C3 port. > > Any pointers on how to solve this issue. Guenter, do you have time to take a look at this? thanks, -- heikki