From patchwork Tue Nov 17 10:56:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 324568 Delivered-To: patch@linaro.org Received: by 2002:a05:6e02:5ce:0:0:0:0 with SMTP id l14csp4066623ils; Tue, 17 Nov 2020 02:57:20 -0800 (PST) X-Google-Smtp-Source: ABdhPJwzztm97Dda2iqe3omQNbac5TYZhc4YnD2FkbHvJXkzYfkGONNZoFPBCE82/8seRfPZxihb X-Received: by 2002:a05:6402:b3b:: with SMTP id bo27mr19876886edb.376.1605610640373; Tue, 17 Nov 2020 02:57:20 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1605610640; cv=none; d=google.com; s=arc-20160816; b=lsR+UH/sK3kXXAA4IajXCnFoh5Z3CW97I8mGHSlhnxYkPcwni+TD22SQnaYCRJaGJl Pgxs7zFWa2IaFTOZ1yAJ7kcqjLscfvbtZfs3idBOou2KfTQctjXexNYzLupsS0nIAxph TazSduT0ZKc9RhXKbfIuE0jW5g+YLgISBAeblARtT950xiQpLtr4HkDX14Ja5h5Ot+xC p43lM/lwlPduZf+riS4Mc3g/4OWjc1+WxOrWBm+32PV78ordPetR8jArJi/TPb2RGfeX lfAE/GzRM5uFz8W60VefA9z4RIN5x7BpDUF2Om9VDMSFZJHYAhS55I78KgaBM4TSbW9E 8d0g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=r6BZcfFspKekPk2CsVfLnHhDTFjI4u11uU/6NZJdVNU=; b=ko2IDcb8/Y0xsNQ/gUCdhivTKW1DbgWZeqhV9yV0EOD0o8ujc7KO7XdOLXLEEZTB2q GrNjUGU9CgHHuxGmYflxHztPYUU6n3csBH4MQ4IWq7Iw9tOJyU/0K5MSYEZo7sMNdPQv AsNKWd+hRIfq4ayN0QAzc/A8KiY1OJy3beh/T787C12PbYQPvuMknks6BvozIF9NV0Mc shNS6l/+DTRFdBNb+QD8uNpslPPyD7YeAXVOJJspaWzCZF3oMAlYNuzjZ7rgkgGh5w+P Jr6g3c2Z8JLAeRjMnqoJXaAXdpep3Rl6DHO5zSP21H4CpaGb1Zd/loiP5tJNPHoWf6Qv /Zcg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=iu2PLKVn; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id dm25si12962825edb.238.2020.11.17.02.57.20; Tue, 17 Nov 2020 02:57:20 -0800 (PST) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=iu2PLKVn; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728214AbgKQK5B (ORCPT + 6 others); Tue, 17 Nov 2020 05:57:01 -0500 Received: from fllv0016.ext.ti.com ([198.47.19.142]:34162 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728208AbgKQK47 (ORCPT ); Tue, 17 Nov 2020 05:56:59 -0500 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0AHAuqfn117397; Tue, 17 Nov 2020 04:56:52 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1605610612; bh=r6BZcfFspKekPk2CsVfLnHhDTFjI4u11uU/6NZJdVNU=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=iu2PLKVnQRaNSmhkyiovnJjARHlRHbE8pdRD8FjXrHFL0PeE4J+w+HEq+caoxPUih +46Bmz84oPBRrYMU99ljah3krjhMAda5A9eEyUwx/A/Z0WibHgxJnO8QBvhNtwVH8z o/ecDiHgb064244/RrkbRZvaAYghcGtoxESmezRI= Received: from DFLE105.ent.ti.com (dfle105.ent.ti.com [10.64.6.26]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0AHAuqd9005553 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 17 Nov 2020 04:56:52 -0600 Received: from DFLE108.ent.ti.com (10.64.6.29) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 17 Nov 2020 04:56:52 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 17 Nov 2020 04:56:52 -0600 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0AHAu6u0087311; Tue, 17 Nov 2020 04:56:49 -0600 From: Peter Ujfalusi To: , , , CC: , , , , , , , Subject: [PATCH v2 14/19] dmaengine: ti: Add support for k3 event routers Date: Tue, 17 Nov 2020 12:56:51 +0200 Message-ID: <20201117105656.5236-15-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201117105656.5236-1-peter.ujfalusi@ti.com> References: <20201117105656.5236-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In k3 architecture a DMA channel (in TR momde) can be triggered by global events, origination from different modules. The events for triggers can be sent from any module which is connected to PSI-L fabric, but the event number to be sent is DMA channel specific, it is only known after the channel itself is requested. The router operation needs to be split up: - route_allocate: configure the dma_spec for the DMA and store the configuration which is needed for the router's input - set_event: callback used by the DMA driver to set the event number for the channel and enable the routing Signed-off-by: Peter Ujfalusi --- include/linux/dma/k3-event-router.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 include/linux/dma/k3-event-router.h -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki diff --git a/include/linux/dma/k3-event-router.h b/include/linux/dma/k3-event-router.h new file mode 100644 index 000000000000..e3f88b2f87be --- /dev/null +++ b/include/linux/dma/k3-event-router.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com + */ + +#ifndef K3_EVENT_ROUTER_ +#define K3_EVENT_ROUTER_ + +#include + +struct k3_event_route_data { + void *priv; + int (*set_event)(void *priv, u32 event); +}; + +#endif /* K3_EVENT_ROUTER_ */