From patchwork Tue Dec 6 04:35:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 13065403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7757C3A5A7 for ; Tue, 6 Dec 2022 04:36:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233500AbiLFEgc (ORCPT ); Mon, 5 Dec 2022 23:36:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233084AbiLFEgT (ORCPT ); Mon, 5 Dec 2022 23:36:19 -0500 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE6E119C29; Mon, 5 Dec 2022 20:36:18 -0800 (PST) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2B64aFOD084443; Mon, 5 Dec 2022 22:36:15 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1670301375; bh=vVHWHciRmrYwI1HfNz9Bua0KW6oSkJzJz3dy8BcG1+E=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=a3zXR969DUyyT4wbItC+zwE/de6NshuVUB6tKF33vjMtM8edxhmqhBH7sUEwjkc+L MyZO+kj+p2dL9TmpRWpgp0PRBovRPwfpjccxB9u4gBsOZ0RfIFaKZm+aZothyQCSMz t4WnoEyqpFDSrQAGdFqMmIkRQZp4mR3q1hskeOr4= Received: from DLEE115.ent.ti.com (dlee115.ent.ti.com [157.170.170.26]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2B64aFjH001638 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 5 Dec 2022 22:36:15 -0600 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Mon, 5 Dec 2022 22:36:15 -0600 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Mon, 5 Dec 2022 22:36:15 -0600 Received: from uda0132425.dhcp.ti.com (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2B64Zx2d097382; Mon, 5 Dec 2022 22:36:13 -0600 From: Vignesh Raghavendra To: Peter Ujfalusi , Vinod Koul , Rob Herring , Krzysztof Kozlowski CC: , , , Vignesh Raghavendra Subject: [PATCH 5/5] dmaengine: ti: k3-udma: Add support for BCDMA CSI RX Date: Tue, 6 Dec 2022 10:05:54 +0530 Message-ID: <20221206043554.1521522-6-vigneshr@ti.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221206043554.1521522-1-vigneshr@ti.com> References: <20221206043554.1521522-1-vigneshr@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org BCDMA CSI RX present on AM62Ax SoC is a dedicated DMA for servicing Camera Serial Interface (CSI) IP. Add support for the same. Signed-off-by: Vignesh Raghavendra --- drivers/dma/ti/k3-udma.c | 37 ++++++++++++++++++++++++++++++++----- 1 file changed, 32 insertions(+), 5 deletions(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 19fce52a9b53..a8b497ed3f30 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -135,6 +135,7 @@ struct udma_match_data { u32 flags; u32 statictr_z_mask; u8 burst_size[3]; + struct udma_soc_data *soc_data; }; struct udma_soc_data { @@ -4295,6 +4296,25 @@ static struct udma_match_data j721e_mcu_data = { }, }; +static struct udma_soc_data am62a_dmss_csi_soc_data = { + .oes = { + .bcdma_rchan_data = 0xe00, + .bcdma_rchan_ring = 0x1000, + }, +}; + +static struct udma_match_data am62a_bcdma_csirx_data = { + .type = DMA_TYPE_BCDMA, + .psil_base = 0x3100, + .enable_memcpy_support = false, + .burst_size = { + TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_64_BYTES, /* Normal Channels */ + 0, /* No H Channels */ + 0, /* No UH Channels */ + }, + .soc_data = &am62a_dmss_csi_soc_data, +}; + static struct udma_match_data am64_bcdma_data = { .type = DMA_TYPE_BCDMA, .psil_base = 0x2000, /* for tchan and rchan, not applicable to bchan */ @@ -4344,6 +4364,10 @@ static const struct of_device_id udma_of_match[] = { .compatible = "ti,am64-dmss-pktdma", .data = &am64_pktdma_data, }, + { + .compatible = "ti,am62a-dmss-bcdma-csirx", + .data = &am62a_bcdma_csirx_data, + }, { /* Sentinel */ }, }; @@ -5272,12 +5296,15 @@ static int udma_probe(struct platform_device *pdev) } ud->match_data = match->data; - soc = soc_device_match(k3_soc_devices); - if (!soc) { - dev_err(dev, "No compatible SoC found\n"); - return -ENODEV; + ud->soc_data = ud->match_data->soc_data; + if (!ud->soc_data) { + soc = soc_device_match(k3_soc_devices); + if (!soc) { + dev_err(dev, "No compatible SoC found\n"); + return -ENODEV; + } + ud->soc_data = soc->data; } - ud->soc_data = soc->data; ret = udma_get_mmrs(pdev, ud); if (ret)