From patchwork Wed Jun 10 06:02:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 209539 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, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 5F86AC433E1 for ; Wed, 10 Jun 2020 06:04:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3129520801 for ; Wed, 10 Jun 2020 06:04:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="r7oRzXIK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726365AbgFJGE1 (ORCPT ); Wed, 10 Jun 2020 02:04:27 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:10491 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726249AbgFJGCr (ORCPT ); Wed, 10 Jun 2020 02:02:47 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 09 Jun 2020 23:02:34 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 09 Jun 2020 23:02:47 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 09 Jun 2020 23:02:47 -0700 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 10 Jun 2020 06:02:47 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 10 Jun 2020 06:02:47 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.167.70]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Tue, 09 Jun 2020 23:02:47 -0700 From: Sowjanya Komatineni To: , , , , , , , CC: , , , , , , , Subject: [RFC PATCH v1 06/18] i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c Date: Tue, 9 Jun 2020 23:02:28 -0700 Message-ID: <1591768960-31648-7-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1591768960-31648-1-git-send-email-skomatineni@nvidia.com> References: <1591768960-31648-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1591768954; bh=1s9dzZ23FpCC5jCiBWHmtIJv2ULCqfj+qrwdZQCyNRQ=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=r7oRzXIKUhxMcBNbgq4vp24n2h4QUBgwSI9hQ/kngELAnqeJ8ckqvEXVtN+BWtqIP B03QHpanxhz4LLCNYm54JqW80aURdIKXuk9I4/XAJA5t0n9pO/2sX3aHXcCNA8o6tj ceyKx66F6eUvcdYRj7cSYGYgqfmQ29Rpnh/gx1ZKSp2/eAJf9+mDAymF+THtOHGJNd dw5iTJKr+oQMFSJoF3wDKXoiz8tASlJrNjYbJPBtNBjh/pJ5mAycIFuMTZbo2toi6a QK67iS03NNcw7e6Ez/pCdEsWJeqDB0sbAZlfy0NicDVfo2HdCqsLApI22OQQ1TM7D4 ZroIZ3lhhomGw== Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org VI I2C is on host1x bus so APB DMA can't be used for Tegra210 VI I2C and there are no tx and rx dma channels for VI I2C. So, avoid attempt of requesting DMA channels. Signed-off-by: Sowjanya Komatineni --- drivers/i2c/busses/i2c-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 650240d..ed99dfe 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -421,7 +421,7 @@ static int tegra_i2c_init_dma(struct tegra_i2c_dev *i2c_dev) dma_addr_t dma_phys; int err; - if (!i2c_dev->hw->has_apb_dma) + if (!i2c_dev->hw->has_apb_dma || i2c_dev->is_vi) return 0; if (!IS_ENABLED(CONFIG_TEGRA20_APB_DMA)) {