From patchwork Thu Oct 8 12:31:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 269031 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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 5D5C1C04EBE for ; Thu, 8 Oct 2020 12:32:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 216EF2083B for ; Thu, 8 Oct 2020 12:32:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602160338; bh=ySoQckmFJh8rm9F+Ix3Hhff1OcUz1ve3KxVHcsZ+2xA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=WZLVbWy44I8jpTzUqYpzFEC69sLDok+/D2Mod0tPex9Tj7nIL1ZDdg+xJWyUMNNks aUKFnoqbPmukuc+QLEl5EXG2+r0ATy5tkCok3S9kDLl24lt5dtdZ7EEVJs88hjK9gi nif6BZ+YcPJvJd05PFuKq+l1A+D+lIn5eFEtiVNY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729945AbgJHMcR (ORCPT ); Thu, 8 Oct 2020 08:32:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:58002 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729942AbgJHMcQ (ORCPT ); Thu, 8 Oct 2020 08:32:16 -0400 Received: from localhost.localdomain (unknown [122.182.224.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 987BB2083B; Thu, 8 Oct 2020 12:32:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602160335; bh=ySoQckmFJh8rm9F+Ix3Hhff1OcUz1ve3KxVHcsZ+2xA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mI5CoUeHWcffAjGKN3ozZqTb3SB5WHq24a0X7oVEUdvQwGB3gnZ0ZuHwmWjtT4YCE VzuV6wWCAB1hIqSPSwLECNvMgx5BkSob4Xd2aAxwHzcju4vAIu157bSL9ieDwoIXgr lEpMZRRXaO8Ef2e4OMv8n7XMJC+2D8egHO4O1Vns= From: Vinod Koul To: dmaengine@vger.kernel.org Cc: Vinod Koul , Rob Herring , Bjorn Andersson , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Ujfalusi Subject: [PATCH v4 2/3] dmaengine: add peripheral configuration Date: Thu, 8 Oct 2020 18:01:50 +0530 Message-Id: <20201008123151.764238-3-vkoul@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201008123151.764238-1-vkoul@kernel.org> References: <20201008123151.764238-1-vkoul@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some complex dmaengine controllers have capability to program the peripheral device, so pass on the peripheral configuration as part of dma_slave_config Signed-off-by: Vinod Koul --- include/linux/dmaengine.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 6fbd5c99e30c..a15dc2960f6d 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -418,6 +418,9 @@ enum dma_slave_buswidth { * @slave_id: Slave requester id. Only valid for slave channels. The dma * slave peripheral will have unique id as dma requester which need to be * pass as slave config. + * @peripheral_config: peripheral configuration for programming peripheral + * for dmaengine transfer + * @peripheral_size: peripheral configuration buffer size * * This struct is passed in as configuration data to a DMA engine * in order to set up a certain channel for DMA transport at runtime. @@ -443,6 +446,8 @@ struct dma_slave_config { u32 dst_port_window_size; bool device_fc; unsigned int slave_id; + void *peripheral_config; + size_t peripheral_size; }; /**