From patchwork Mon Aug 2 18:43:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 12414549 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 1D64BC4320A for ; Mon, 2 Aug 2021 18:43:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F099F61132 for ; Mon, 2 Aug 2021 18:43:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231133AbhHBSnr (ORCPT ); Mon, 2 Aug 2021 14:43:47 -0400 Received: from mga14.intel.com ([192.55.52.115]:35014 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230409AbhHBSnq (ORCPT ); Mon, 2 Aug 2021 14:43:46 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10064"; a="213241543" X-IronPort-AV: E=Sophos;i="5.84,289,1620716400"; d="scan'208";a="213241543" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2021 11:43:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,289,1620716400"; d="scan'208";a="418757489" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 02 Aug 2021 11:43:34 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id AC688B9; Mon, 2 Aug 2021 21:44:03 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Viresh Kumar , Vinod Koul Subject: [PATCH v1 3/3] dmaengine: dw: Simplify DT property parser Date: Mon, 2 Aug 2021 21:43:55 +0300 Message-Id: <20210802184355.49879-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210802184355.49879-1-andriy.shevchenko@linux.intel.com> References: <20210802184355.49879-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Since we converted internal data types to match DT, there is no need to have an intermediate conversion layer, hence drop a few conditionals and for loops for good. Signed-off-by: Andy Shevchenko --- drivers/dma/dw/of.c | 44 ++++++++++++++++---------------------------- 1 file changed, 16 insertions(+), 28 deletions(-) diff --git a/drivers/dma/dw/of.c b/drivers/dma/dw/of.c index 4d2b89142721..523ca806837c 100644 --- a/drivers/dma/dw/of.c +++ b/drivers/dma/dw/of.c @@ -50,7 +50,7 @@ struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct dw_dma_platform_data *pdata; - u32 tmp, arr[DW_DMA_MAX_NR_MASTERS], mb[DW_DMA_MAX_NR_CHANNELS]; + u32 tmp, arr[DW_DMA_MAX_NR_MASTERS]; u32 nr_masters; u32 nr_channels; @@ -71,41 +71,29 @@ struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev) pdata->nr_masters = nr_masters; pdata->nr_channels = nr_channels; - if (!of_property_read_u32(np, "chan_allocation_order", &tmp)) - pdata->chan_allocation_order = (unsigned char)tmp; + of_property_read_u32(np, "chan_allocation_order", &pdata->chan_allocation_order); + of_property_read_u32(np, "chan_priority", &pdata->chan_priority); - if (!of_property_read_u32(np, "chan_priority", &tmp)) - pdata->chan_priority = tmp; + of_property_read_u32(np, "block_size", &pdata->block_size); - if (!of_property_read_u32(np, "block_size", &tmp)) - pdata->block_size = tmp; - - if (!of_property_read_u32_array(np, "data-width", arr, nr_masters)) { - for (tmp = 0; tmp < nr_masters; tmp++) - pdata->data_width[tmp] = arr[tmp]; - } else if (!of_property_read_u32_array(np, "data_width", arr, nr_masters)) { + /* Try deprecated property first */ + if (!of_property_read_u32_array(np, "data_width", arr, nr_masters)) { for (tmp = 0; tmp < nr_masters; tmp++) pdata->data_width[tmp] = BIT(arr[tmp] & 0x07); } - if (!of_property_read_u32_array(np, "multi-block", mb, nr_channels)) { - for (tmp = 0; tmp < nr_channels; tmp++) - pdata->multi_block[tmp] = mb[tmp]; - } else { - for (tmp = 0; tmp < nr_channels; tmp++) - pdata->multi_block[tmp] = 1; - } + /* If "data_width" and "data-width" both provided use the latter one */ + of_property_read_u32_array(np, "data-width", pdata->data_width, nr_masters); - if (of_property_read_u32_array(np, "snps,max-burst-len", pdata->max_burst, - nr_channels)) { - memset32(pdata->max_burst, DW_DMA_MAX_BURST, nr_channels); - } + memset32(pdata->multi_block, 1, nr_channels); + of_property_read_u32_array(np, "multi-block", pdata->multi_block, nr_channels); - if (!of_property_read_u32(np, "snps,dma-protection-control", &tmp)) { - if (tmp > CHAN_PROTCTL_MASK) - return NULL; - pdata->protctl = tmp; - } + memset32(pdata->max_burst, DW_DMA_MAX_BURST, nr_channels); + of_property_read_u32_array(np, "snps,max-burst-len", pdata->max_burst, nr_channels); + + of_property_read_u32(np, "snps,dma-protection-control", &pdata->protctl); + if (pdata->protctl > CHAN_PROTCTL_MASK) + return NULL; return pdata; }