From patchwork Tue Jan 24 22:12:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Zhang X-Patchwork-Id: 647015 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDE5CC61D97 for ; Tue, 24 Jan 2023 22:33:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231727AbjAXWdf (ORCPT ); Tue, 24 Jan 2023 17:33:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234980AbjAXWdT (ORCPT ); Tue, 24 Jan 2023 17:33:19 -0500 Received: from relay.smtp-ext.broadcom.com (relay.smtp-ext.broadcom.com [192.19.166.231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BC824E529; Tue, 24 Jan 2023 14:33:05 -0800 (PST) Received: from mail-lvn-it-01.lvn.broadcom.net (mail-lvn-it-01.lvn.broadcom.net [10.75.146.107]) by relay.smtp-ext.broadcom.com (Postfix) with ESMTP id 4A964C0000F2; Tue, 24 Jan 2023 14:33:05 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com 4A964C0000F2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1674599585; bh=R9v3QNnFjnhJ+Q1VxNUecO321RU+3kqGA8Tpef+bMY8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q7jT862/iy/XlOUCWfMpqFsN0P9o2VF5Ff4cmyzNipZ/pt2Weskp3ZU/JlbSED/vh ePYbM9SQRitWXFN15KncZXKvPhd5feXy9c0RJpcDJ1ez+AcHjumMQHhHVNLDcjVu3+ FSlR/wahcNVCe+FJTT2jWx5pEvdUu5HHSFyMRW8g= Received: from bcacpedev-irv-3.lvn.broadcom.net (bcacpedev-irv-3.lvn.broadcom.net [10.75.138.105]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail-lvn-it-01.lvn.broadcom.net (Postfix) with ESMTPS id 48F6D18041CAC6; Tue, 24 Jan 2023 14:33:05 -0800 (PST) Received: by bcacpedev-irv-3.lvn.broadcom.net (Postfix, from userid 28376) id A1981101B54; Tue, 24 Jan 2023 14:32:57 -0800 (PST) From: William Zhang To: Linux SPI List , Broadcom Kernel List Cc: tomer.yacoby@broadcom.com, kursad.oney@broadcom.com, dregan@mail.com, f.fainelli@gmail.com, anand.gore@broadcom.com, jonas.gorski@gmail.com, dan.beygelman@broadcom.com, joel.peshkin@broadcom.com, William Zhang , kernel test robot , Mark Brown , linux-kernel@vger.kernel.org Subject: [PATCH v2 06/14] spi: bcm63xx-hsspi: Endianness fix for ARM based SoC Date: Tue, 24 Jan 2023 14:12:09 -0800 Message-Id: <20230124221218.341511-7-william.zhang@broadcom.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20230124221218.341511-1-william.zhang@broadcom.com> References: <20230124221218.341511-1-william.zhang@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org HSSPI controller uses big endian for the opcode in the message to the controller ping pong buffer. Use cpu_to_be16 to properly handle the endianness for both big and little endian host. Fixes: 142168eba9dc ("spi: bcm63xx-hsspi: add bcm63xx HSSPI driver") Signed-off-by: Kursad Oney Signed-off-by: William Zhang --- Changes in v2: - Fix build error for Alpha platform Reported-by: kernel test robot drivers/spi/spi-bcm63xx-hsspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c index 01d5acad4a1b..a65a0ec67641 100644 --- a/drivers/spi/spi-bcm63xx-hsspi.c +++ b/drivers/spi/spi-bcm63xx-hsspi.c @@ -194,7 +194,7 @@ static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t) tx += curr_step; } - __raw_writew(opcode | curr_step, bs->fifo); + __raw_writew((u16)cpu_to_be16(opcode | curr_step), bs->fifo); /* enable interrupt */ __raw_writel(HSSPI_PINGx_CMD_DONE(0),