From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C582EC4332F for ; Mon, 27 Sep 2021 17:18:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADECC61371 for ; Mon, 27 Sep 2021 17:18:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235896AbhI0RUd (ORCPT ); Mon, 27 Sep 2021 13:20:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:35430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237449AbhI0RSb (ORCPT ); Mon, 27 Sep 2021 13:18:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E81736128A; Mon, 27 Sep 2021 17:12:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632762752; bh=+zYL7T1/4xrs3hgcpHENCYVk/KXgpQFCdfVnSoBh09k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ppDh6dU8gc47147R/AN/iY8NXjsn+YdVyumY3PqLxouyFQlbCROFABQOWx6AsL3Nw 9bAWAh1uWLg9NKuDjPRthun6SOp3muArNLUr4bOx7bjUTOPdAnjugBGiF19XnsYW/7 KQOz1vfuI+ptL5hn4MrwO6gWcAK8OlsLdeFom4Jc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jan Kiszka , Vignesh Raghavendra , Nishanth Menon Subject: [PATCH 5.14 038/162] serial: 8250: 8250_omap: Fix RX_LVL register offset Date: Mon, 27 Sep 2021 19:01:24 +0200 Message-Id: <20210927170234.808085581@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210927170233.453060397@linuxfoundation.org> References: <20210927170233.453060397@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nishanth Menon commit 79e9e30a9292a62d25ab75488d3886108db1eaad upstream. Commit b67e830d38fa ("serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs") introduced fixup including a register read to RX_LVL, however, we should be using word offset than byte offset since our registers are on 4 byte boundary (port.regshift = 2) for 8250_omap. Fixes: b67e830d38fa ("serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs") Cc: stable Cc: Jan Kiszka Cc: Vignesh Raghavendra Signed-off-by: Nishanth Menon Link: https://lore.kernel.org/r/20210903050550.29050-1-nm@ti.com Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -106,7 +106,7 @@ #define UART_OMAP_EFR2_TIMEOUT_BEHAVE BIT(6) /* RX FIFO occupancy indicator */ -#define UART_OMAP_RX_LVL 0x64 +#define UART_OMAP_RX_LVL 0x19 struct omap8250_priv { int line;