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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 DE8EDC43381 for ; Wed, 27 Mar 2019 05:57:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A0523205C9 for ; Wed, 27 Mar 2019 05:57:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="ZpJwqJdj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732108AbfC0F5D (ORCPT ); Wed, 27 Mar 2019 01:57:03 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:6957 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbfC0F5C (ORCPT ); Wed, 27 Mar 2019 01:57:02 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 26 Mar 2019 22:56:57 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 26 Mar 2019 22:57:02 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 26 Mar 2019 22:57:02 -0700 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL106.nvidia.com (172.18.146.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 27 Mar 2019 05:57:01 +0000 Received: from HQMAIL106.nvidia.com (172.18.146.12) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 27 Mar 2019 05:57:01 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL106.nvidia.com (172.18.146.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 27 Mar 2019 05:57:01 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.161.83]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Tue, 26 Mar 2019 22:57:00 -0700 From: Sowjanya Komatineni To: , , , , , , , CC: , , , , Subject: [PATCH V1 01/26] spi: tegra114: fix PIO transfer Date: Tue, 26 Mar 2019 22:56:22 -0700 Message-ID: <1553666207-11414-1-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1553666217; bh=jnKCDS2+fDqhI4VcNWBwJ5VdZIxqBkvA13qxpCzyHjg=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: X-NVConfidentiality:MIME-Version:Content-Type; b=ZpJwqJdjFA+Uhw1ZZzUlNOH9xPq8lNWqN0BCcrgV0ay9r2/zvsC5AN1iauaAGae98 TU6U/8UxcUoKDp/28KufsxY1mXQ/QwjxHPCYv4QYorMwngIMTkq4ByGCMpobfR0xs+ I4vPKTLBg83EjDiqOL9s6ypznbV+dy1HL6itryNldrrOaAp5E/RbSE/xyGKzbT8Ojo M1oMEs1rucqt1co9ty7dkpc1ObJcjrfAX869o5J8SEKqOuR/L+1OG5pBZrfBh92xfm mXh0PM9ObD7UE8PuAxiRywnahDxLv9faOvBdBYZtJyfDBYWWIkIykAl2xadyCDLiRq h93BjKvMBcu4g== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes: Use PIO bit in SPI_COMMAND1 register for PIO mode. Current driver uses DMA_EN instead of PIO bit. Signed-off-by: Sowjanya Komatineni --- drivers/spi/spi-tegra114.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index a76acedd7e2f..5a21bc808bb6 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -570,8 +570,9 @@ static int tegra_spi_start_cpu_based_transfer( tspi->is_curr_dma_xfer = false; - val |= SPI_DMA_EN; - tegra_spi_writel(tspi, val, SPI_DMA_CTL); + val = tspi->command1_reg; + val |= SPI_PIO; + tegra_spi_writel(tspi, val, SPI_COMMAND1); return 0; } -- 2.7.4