From patchwork Tue Jul 23 12:52:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 814101 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) (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 157C93D55D; Tue, 23 Jul 2024 15:16:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.243.120.170 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721747765; cv=none; b=qgwAesU4Pis4IXmMQ9DMigjMoXoDWKG+gb/ok2JUXhL6oaZFw/cDcHTvuRnvlRUgSx0vM0XMctf5DdDqzfYxBjqa0lrpCWFrk4//abr1g1UVnwguWiBmWJWT5aUKMDJrjiXNzkfllpAJzNxJ79aQnhDgpoJ12XGzhu0SW0e67vM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721747765; c=relaxed/simple; bh=wcmAco8bkzi70O9n+d6uvvToZXg1RK9zjr+X5LzojVw=; h=From:To:Cc:Date:Message-Id:MIME-Version:Subject; b=mx/gmsH8dRbiXVSIVVEsfoTTldmhZKSLPJ0ya8x7yUbHEr2CXo/vCVMAHvc641yiqHj37Mqgagpxagj1hE/RfG5ItKun8lEUAl2yFrWl1JiJu5C4VwMLN635E4SbbDd5j8zpM9hqBTZwIfkczrf+JO2O3GyMiq4JJVgAs2Ae8Sc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hugovil.com; spf=pass smtp.mailfrom=hugovil.com; dkim=pass (1024-bit key) header.d=hugovil.com header.i=@hugovil.com header.b=PyltflEA; arc=none smtp.client-ip=162.243.120.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hugovil.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hugovil.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=hugovil.com header.i=@hugovil.com header.b="PyltflEA" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=hugovil.com ; s=x; h=Subject:Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Cc:To :From:subject:date:message-id:reply-to; bh=Y2b2wyHe/Scg6YoHbNFbNDMijEkXHLcw9K/zw4LWlE0=; b=PyltflEAT72vIxHXC5uuoWyL6V ZBr6/u3LuZkePxDFimN8cxHr0giBdTAVa9m9N83C8PUR6EiFSE9TS5AUMPFwqx5jAGOMKMdQlqdKZ zknBIL07QMoikhnNlMShepd3HOfKKp3FxJ+pc75LVgfswC1GUhWmDxuZngI3iEFPBmas=; Received: from modemcable061.19-161-184.mc.videotron.ca ([184.161.19.61]:36238 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1sWGwG-0003Y2-QS; Tue, 23 Jul 2024 10:56:29 -0400 From: Hugo Villeneuve To: gregkh@linuxfoundation.org, jirislaby@kernel.org, hvilleneuve@dimonoff.com, jringle@gridpoint.com Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, hugo@hugovil.com Date: Tue, 23 Jul 2024 08:52:59 -0400 Message-Id: <20240723125302.1305372-1-hugo@hugovil.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 184.161.19.61 X-SA-Exim-Mail-From: hugo@hugovil.com X-Spam-Level: X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP Subject: [PATCH 0/2] serial: sc16is7xx: fix registers accesses and Tx FIFO corruption X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.hugovil.com) From: Hugo Villeneuve Hello, this patch series fixes enhanced/special register set accesses and Tx FIFO corruption. I have tested the changes on a custom board with two SC16IS752 DUART over a SPI interface using a Variscite IMX8MN NANO SOM. The four UARTs are configured in RS-485 mode. Thank you. Hugo Villeneuve (2): serial: sc16is7xx: fix TX fifo corruption serial: sc16is7xx: fix invalid FIFO access with special register set drivers/tty/serial/sc16is7xx.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) base-commit: 933069701c1b507825b514317d4edd5d3fd9d417