From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C58F0393DE4; Fri, 22 Aug 2025 04:51:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755838297; cv=none; b=QSd2CVA13ncknpCrp1uH8DfFxJ4cEPTx9QyZ5BeOT+iE4iDK5O8iMq6qfB74lhTmzo0NWiALUc532aMT4T8Vw7XekND/cFSZHJrDf4LKZq2boVTpstCnuxdFlRXpmrHcuhlT62SAKxBxg1gGXTwJifm1t+uYGH3ISsdctErECVc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755838297; c=relaxed/simple; bh=D6wTeMrZWJGGAw5I8c6SVUz7qymK076WePTtoLzILdE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ONwNCcq9W6JBalrK+adZkE82QzpxcXp0nAsigiLPwqc6oIUYuSTW4KgorVqRVWm6t5QSNL7hqUxl1DvLFxDbeiayfeyiqKVbv9CqhVEUmUreQpN5y9LDabYMb8XIIPjOBgMVVAMWTMUx3azGdkRIIG6cUPn4ZBsGsD5YW+BFb/g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ICeuazS3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ICeuazS3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC460C4CEF1; Fri, 22 Aug 2025 04:51:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755838296; bh=D6wTeMrZWJGGAw5I8c6SVUz7qymK076WePTtoLzILdE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ICeuazS3MCUCB9cWbsk6EpH5ODc7CvBx/elXVn1IQA139BZFbNphLF8e4BTkVRvFJ nujNmorlJZlBcRImJbFqLhdARYHH/1HmbgHmY7vQTE67ogVTQMyQKQxf87EA8SQoa2 qEaWmgFabSN8/qSmbZMirjqrHvZXDUuxR/EWbH3E= Date: Fri, 22 Aug 2025 06:51:32 +0200 From: Greg KH To: Mark Pearson Cc: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] usb: typec: ucsi: Handle incorrect num_connectors capability Message-ID: <2025082213-antacid-correct-53b1@gregkh> References: <20250821185319.2585023-1-mpearson-lenovo@squebb.ca> 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: <20250821185319.2585023-1-mpearson-lenovo@squebb.ca> On Thu, Aug 21, 2025 at 02:53:07PM -0400, Mark Pearson wrote: > The UCSI spec states that the num_connectors field is 7 bits, and the > 8th bit is reserved and should be set to zero. > Some buggy FW has been known to set this bit, and it can lead to a > system not booting. > Flag that the FW is not behaving correctly, and auto-fix the value > so that the system boots correctly. > > Found on Lenovo P1 G8 during Linux enablement program. The FW will > be fixed, but seemed worth addressing in case it hit platforms that > aren't officially Linux supported. > > Signed-off-by: Mark Pearson Any hints as to what commit id this fixes? thanks, greg k-h