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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3028DC2D0DB for ; Fri, 24 Jan 2020 11:31:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 07483214AF for ; Fri, 24 Jan 2020 11:31:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579865496; bh=HFwQb0O34aT0aoLhTP4YW3fAfKwbOI+s08VarianbpU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cxPUf9BtlkQf5tk82DpRlehkSlKVJuIyObUmbX4NYq2vIkmxt5Z7nR+8iAAZiQOm9 gh8757t0xi873FOgR17oy/CwSd9BuMzOR5imlGe3nDU/Ws3ti7dh2SGgLgZk1A87Gx MM388j6wk3x6KVIjFapbXjTSJb0ZFqL015djGk4I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391870AbgAXLbZ (ORCPT ); Fri, 24 Jan 2020 06:31:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:49732 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391865AbgAXLbY (ORCPT ); Fri, 24 Jan 2020 06:31:24 -0500 Received: from localhost (ip-213-127-102-57.ip.prioritytelecom.net [213.127.102.57]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B5FA8206D4; Fri, 24 Jan 2020 11:31:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579865483; bh=HFwQb0O34aT0aoLhTP4YW3fAfKwbOI+s08VarianbpU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BhJCykNg4/QnTvQ0ZXmEPDFshtzdAf+po94pStpnh1SPbiIkE9VjZab0HDnDCKrEM N7ElcrBtoe1B7JKHHE0b0mbwFd3iBnRArQRioJWGm0eePeSTVCfn93atIWiMHTgjD7 jGmaLY0+y/nzOYv0IJAjcWecWuQ0TKpnZw61Qs7M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrey Smirnov , Stefan Agner , Bhuvanchandra DV , Chris Healy , Cory Tusar , Lucas Stach , Jiri Slaby , linux-imx@nxp.com, linux-serial@vger.kernel.org, Sasha Levin Subject: [PATCH 4.19 541/639] tty: serial: fsl_lpuart: Use appropriate lpuart32_* I/O funcs Date: Fri, 24 Jan 2020 10:31:51 +0100 Message-Id: <20200124093156.779825916@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200124093047.008739095@linuxfoundation.org> References: <20200124093047.008739095@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org From: Andrey Smirnov [ Upstream commit 1da17d7cf8e2c4b60163d54300f72c02f510327c ] When dealing with 32-bit variant of LPUART IP block appropriate I/O helpers have to be used to properly deal with endianness differences. Change all of the offending code to do that. Fixes: a5fa2660d787 ("tty/serial/fsl_lpuart: Add CONSOLE_POLL support for lpuart32.") Signed-off-by: Andrey Smirnov Cc: Stefan Agner Cc: Bhuvanchandra DV Cc: Chris Healy Cc: Cory Tusar Cc: Lucas Stach Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: linux-imx@nxp.com Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/20190729195226.8862-14-andrew.smirnov@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/tty/serial/fsl_lpuart.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index ee8a5cb61a5f1..2daccb10ae2f3 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -528,26 +528,26 @@ static int lpuart32_poll_init(struct uart_port *port) spin_lock_irqsave(&sport->port.lock, flags); /* Disable Rx & Tx */ - writel(0, sport->port.membase + UARTCTRL); + lpuart32_write(&sport->port, UARTCTRL, 0); - temp = readl(sport->port.membase + UARTFIFO); + temp = lpuart32_read(&sport->port, UARTFIFO); /* Enable Rx and Tx FIFO */ - writel(temp | UARTFIFO_RXFE | UARTFIFO_TXFE, - sport->port.membase + UARTFIFO); + lpuart32_write(&sport->port, UARTFIFO, + temp | UARTFIFO_RXFE | UARTFIFO_TXFE); /* flush Tx and Rx FIFO */ - writel(UARTFIFO_TXFLUSH | UARTFIFO_RXFLUSH, - sport->port.membase + UARTFIFO); + lpuart32_write(&sport->port, UARTFIFO, + UARTFIFO_TXFLUSH | UARTFIFO_RXFLUSH); /* explicitly clear RDRF */ - if (readl(sport->port.membase + UARTSTAT) & UARTSTAT_RDRF) { - readl(sport->port.membase + UARTDATA); - writel(UARTFIFO_RXUF, sport->port.membase + UARTFIFO); + if (lpuart32_read(&sport->port, UARTSTAT) & UARTSTAT_RDRF) { + lpuart32_read(&sport->port, UARTDATA); + lpuart32_write(&sport->port, UARTFIFO, UARTFIFO_RXUF); } /* Enable Rx and Tx */ - writel(UARTCTRL_RE | UARTCTRL_TE, sport->port.membase + UARTCTRL); + lpuart32_write(&sport->port, UARTCTRL, UARTCTRL_RE | UARTCTRL_TE); spin_unlock_irqrestore(&sport->port.lock, flags); return 0; @@ -555,18 +555,18 @@ static int lpuart32_poll_init(struct uart_port *port) static void lpuart32_poll_put_char(struct uart_port *port, unsigned char c) { - while (!(readl(port->membase + UARTSTAT) & UARTSTAT_TDRE)) + while (!(lpuart32_read(port, UARTSTAT) & UARTSTAT_TDRE)) barrier(); - writel(c, port->membase + UARTDATA); + lpuart32_write(port, UARTDATA, c); } static int lpuart32_poll_get_char(struct uart_port *port) { - if (!(readl(port->membase + UARTSTAT) & UARTSTAT_RDRF)) + if (!(lpuart32_read(port, UARTSTAT) & UARTSTAT_RDRF)) return NO_POLL_CHAR; - return readl(port->membase + UARTDATA); + return lpuart32_read(port, UARTDATA); } #endif -- 2.20.1