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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,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 53618C4360F for ; Fri, 5 Apr 2019 00:14:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B15E2184E for ; Fri, 5 Apr 2019 00:14:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="fkj0KLH4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730358AbfDEAOX (ORCPT ); Thu, 4 Apr 2019 20:14:23 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:6439 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727051AbfDEAOX (ORCPT ); Thu, 4 Apr 2019 20:14:23 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 04 Apr 2019 17:14:26 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Thu, 04 Apr 2019 17:14:22 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Thu, 04 Apr 2019 17:14:22 -0700 Received: from HQMAIL102.nvidia.com (172.18.146.10) by HQMAIL103.nvidia.com (172.20.187.11) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 5 Apr 2019 00:14:22 +0000 Received: from HQMAIL108.nvidia.com (172.18.146.13) by HQMAIL102.nvidia.com (172.18.146.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 5 Apr 2019 00:14:21 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL108.nvidia.com (172.18.146.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Fri, 5 Apr 2019 00:14:22 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.110.103.48]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Thu, 04 Apr 2019 17:14:21 -0700 From: Sowjanya Komatineni To: , , , , , , , CC: , , , , Subject: [PATCH V2 01/20] spi: tegra114: fix PIO transfer Date: Thu, 4 Apr 2019 17:14:00 -0700 Message-ID: <1554423259-26056-1-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=1554423266; bh=yfcAvajdhtbmEYXty9MCa4MPZeE130DEL1zLdZw+OBA=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: X-NVConfidentiality:MIME-Version:Content-Type; b=fkj0KLH4qliJMw0woji4BQ1z2o5e5ZW7ndyuwLZM4Vt/jgmm8Ga3WDm8jifEn53mR /Fvu1A45p+tyEcZBAT0OEKZ/VCt+7T4fvFpnHtO7QwmnskR6Ij9hSFH7HB/cEEqs+U iSXGa4w8VDKIeFTPiZFBhf6x2QAIn8FLWB/VdMt03LO8d6rZ++b3Tbq/pEKByiNJ8D CodU0cNb784gq7u8zxhYA3UaFkFj0f9ONAc4fFsOWuGFdDMmFjKgkChRktWlhNgcGj 3wRkA0XQjfjghF0VfVFKUH3+RukfKuteTBfQhwLYSMGf6aqYoBzmYMYHaiBAojJA6p 6wAiC1CFgWGEQ== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch fixes PIO mode transfer to use PIO bit in SPI_COMMAND1 register. 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 6bb40e46da91..ba1639310282 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -641,8 +641,9 @@ 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