From patchwork Fri Jan 6 20:07:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Zhang X-Patchwork-Id: 640004 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 E55A2C54EBD for ; Fri, 6 Jan 2023 20:21:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235863AbjAFUVV (ORCPT ); Fri, 6 Jan 2023 15:21:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235773AbjAFUUz (ORCPT ); Fri, 6 Jan 2023 15:20:55 -0500 Received: from relay.smtp-ext.broadcom.com (relay.smtp-ext.broadcom.com [192.19.166.228]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9345684620; Fri, 6 Jan 2023 12:19:53 -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 D5160C0000E2; Fri, 6 Jan 2023 12:09:54 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com D5160C0000E2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1673035794; bh=SvLodN4cQ6TEbn+PEQP+YZBLKZOuvyU97FI3sOksrF0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZjnHv1LEV8rVFlAGo9JwQxczlOuvzW/ybD7ZQ4by8uCkQham3Dj2vxv8adXm/aLVF ENZVCXrYP9pkTLNTxH3GlqKsir4ma60M+VBn4CWpSe4Bm6nuQk7qSU1NU8I0sqscoS giOhM1c7Ok/bFO4wn5ohRe6WVDhV0HAbdSrurcl8= 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 D32F618041CAC6; Fri, 6 Jan 2023 12:09:54 -0800 (PST) Received: by bcacpedev-irv-3.lvn.broadcom.net (Postfix, from userid 28376) id 2C07C101B33; Fri, 6 Jan 2023 12:09:48 -0800 (PST) From: William Zhang To: Linux SPI List , Broadcom Kernel List Cc: anand.gore@broadcom.com, tomer.yacoby@broadcom.com, dan.beygelman@broadcom.com, joel.peshkin@broadcom.com, f.fainelli@gmail.com, jonas.gorski@gmail.com, kursad.oney@broadcom.com, dregan@mail.com, William Zhang , Mark Brown , linux-kernel@vger.kernel.org Subject: [PATCH 06/16] spi: bcm63xx-hsspi: Endianness fix for ARM based SoC Date: Fri, 6 Jan 2023 12:07:58 -0800 Message-Id: <20230106200809.330769-7-william.zhang@broadcom.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20230106200809.330769-1-william.zhang@broadcom.com> References: <20230106200809.330769-1-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 --- 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 b871fd810d80..63682c8ff955 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(cpu_to_be16(opcode | curr_step), bs->fifo); /* enable interrupt */ __raw_writel(HSSPI_PINGx_CMD_DONE(0),