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 1B9F87F9; Mon, 23 Dec 2024 17:59:22 +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=1734976763; cv=none; b=XwFwu/4P7VJEzC0PTTs1zcWtqE0Y5nUJbispOE1Y5YIZDOlQ/gtS39ZQVa2yQbZN41QDKfHniTogrqqS0tsMzBmToguJRR3Ub0vKwPHcW+5EIM9cHVgZpUlC9nh/OP1NaksM+dEze0jYcUz7KNGDb1gup5n7QhCEhg/7BJZnEDg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734976763; c=relaxed/simple; bh=RmmHQHI9OT7foCSNS3heOsTBq0YrsanZIh164vcpy6E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lk+bKTWIp2PxG/EkCyxIOiPMDwiHn1SfGhHcGh7Jm8EaRMm62LYBhtF9XJBdTxazIe0FKGiPjbYSBNMfpmKMV+pFYhuZUIwwC5eP/v9kRVlxipiChTM1UDRCEwZJKAve2Cng23g+a1zNg68FjGFQGHszSVaW7fpjPi7ua1tiMII= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=mqMo61gv; 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="mqMo61gv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8655C4CED3; Mon, 23 Dec 2024 17:59:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734976762; bh=RmmHQHI9OT7foCSNS3heOsTBq0YrsanZIh164vcpy6E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mqMo61gvpYlWuE5L+rFhAAPAUZkUaCMN88n0aKv2Z7cidw78bTRRUNgFuFW7WqTV8 Gan4TNtaD+OH0gY/a7U2dGyTH07y5siIMy0SDSjWsGjo+EmLX28jJV2ZCR7faqqsMf XgPt/ZxMx4kbqIn3C6jlH6EoUQbSBtXiu6HXlRY0= Date: Mon, 23 Dec 2024 18:59:19 +0100 From: Greg KH To: Maarten Brock Cc: Andre Werner , "jirislaby@kernel.org" , "hvilleneuve@dimonoff.com" , "andy@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-serial@vger.kernel.org" , "lech.perczak@camlingroup.com" Subject: Re: [External Email] Re: [PATCH] serial: sc16is7xx: Add polling feature if no IRQ usage possible Message-ID: <2024122301-trickery-unexpired-e6b6@gregkh> References: <20241219084638.960253-1-andre.werner@systec-electronic.com> <2024121931-turbojet-preamble-b520@gregkh> <2024121906-reach-hash-3d7c@gregkh> <5a524cb7-23d9-63b8-81fc-b68a23fddd65@systec-electronic.com> Precedence: bulk X-Mailing-List: linux-kernel@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: On Mon, Dec 23, 2024 at 02:27:22PM +0000, Maarten Brock wrote: > > I got your point and I'm fully with. This caused me to print a warning > > in Kernel log because it should not be the general working method. > > In our special case we do not have any other option because the sensor > > module using the SC16IS7xx and the hardware with the MCU running Linux OS > > are fixed. We had no possibilities to move any GPIO or such. This was > > the only chance to support the dedicated sensor platform and I may be > > the case that someone else faces the same problems. I thought that > > someone else may benefit from this workaround too. But as I got your > > point I'm also fine if it is not merged into main Linux Kernel sources. > > I vote this patch to go in (after modification). Ok, let's see a cleaned up version of this and we'll review it again. thanks, greg k-h