From patchwork Thu May 2 12:55:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sameer Pujar X-Patchwork-Id: 10926755 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9C67213AD for ; Thu, 2 May 2019 12:55:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8C73821FAC for ; Thu, 2 May 2019 12:55:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 805582228E; Thu, 2 May 2019 12:55:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 068FA21FAC for ; Thu, 2 May 2019 12:55:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726415AbfEBMz3 (ORCPT ); Thu, 2 May 2019 08:55:29 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:17095 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726282AbfEBMz3 (ORCPT ); Thu, 2 May 2019 08:55:29 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 02 May 2019 05:55:25 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 02 May 2019 05:55:28 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 02 May 2019 05:55:28 -0700 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 2 May 2019 12:55:28 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 2 May 2019 12:55:28 +0000 Received: from linux.nvidia.com (Not Verified[10.24.34.185]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Thu, 02 May 2019 05:55:28 -0700 From: Sameer Pujar To: , , , CC: , , , , , , , Sameer Pujar Subject: [PATCH 0/6] Add support for Tegra186/Tegra194 and generic fixes Date: Thu, 2 May 2019 18:25:11 +0530 Message-ID: <1556801717-31507-1-git-send-email-spujar@nvidia.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1556801725; bh=xyGsJZTzhujgVWu4NMnFenNqEk9EavZ+0dkdg0MyO7M=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type; b=FxhZsRMeolt75QngFCSxHZ2dckUMoYrFccMSsycY6kv/HQj5XUE/niiUYg1L+2c9g PLrIrjy4IwHHn3Bf3ogc6PnZ53s20gwM0XQJH+I+ZC/dTNMyUvyTd/TXQB/wmNzICW QTIOU52jckyPNvwCtJuAunSRDloOOTl9S6AnwL8cwFlLdlELQVEFBYuny8x2uJGxOq aXNpRXa+/gJWaNDBTP1B7fgjB+xP1HF6DCs7zIZZCpKjcd6qzSeJw+pQW8ihZRof4V tLdygaa8MAVT9uRPfXjx0rYsKyQAewlh56Us1b1ftFP8kaDcqDLG1PIagj/EhonxXo PWzFiGb/Eo0QA== Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Audio DMA(ADMA) interface is a gateway in the AHUB for facilitating DMA transfers between memory and all of its clients. Currently the driver supports Tegra210 based platforms. This series adds support for Tegra186 and Tegra194 based platforms and fixes few functional issues. Patches in the series are classified into three categories, 1. Add support for Tegra186 and Tegra194 2. Add DMA pause/resume feature 3. Fixes common to differernt Tegra generations Below change log describes the patches in detail. Change log: ===================================== v1 ---- The series can be classified into 3 categories, 1. Add support for Tegra186 and Tegra194 [Patch 1/6] dmaengine: tegra210-adma: prepare for supporting newer Tegra chips * The support was there only for Tegra210 * This is a preparation for adding support for newer Tegra chips * chip_data is enhanced to support differences between Tegra210 and Tegra186/Tegra194 [Patch 2/6] Documentation: DT: Add compatibility binding for Tegra186 * New compatibility string is required for driver to work for Tegra186 and Tegra194. Hence new compatibility is introduced. * Tegra194 can use the same compatibility as Tegra186 [Patch 3/6] dmaengine: tegra210-adma: add support for Tegra186/ Tegra194 * Populates chip specific information for Tegra186 * There is a difference in the way ADMA CH_CONFIG registers are encoded for Tegra210 and Tegra186. Added helper fucntions to support different versions of burst size configuration 2. Add DMA pause/resume feature [Patch 4/6] dmaengine: tegra210-adma: add pause/resume support * Adds support for ADMA pause/resume, otherwise audio loss was seen during continuous pause/resume of audio playback. 3. Fixes common to differernt Tegra generations [Patch 5/6] dmaengine: tegra210-dma: free dma controller in remove() * Fixes kernel panic observed during driver reload. DMA controller needs to be freed when driver is unloaded [Patch 6/6] dmaengine: tegra210-adma: restore channel status * Fixes resume across system suspend. If the channel state is not restored, the transfers won't resume from the state from where it was left during suspend entry. In this case, audio playback did not resume properly once system exited from low power state. =============================== Sameer Pujar (6): dmaengine: tegra210-adma: prepare for supporting newer Tegra chips Documentation: DT: Add compatibility binding for Tegra186 dmaengine: tegra210-adma: add support for Tegra186/Tegra194 dmaengine: tegra210-adma: add pause/resume support dmaengine: tegra210-dma: free dma controller in remove() dmaengine: tegra210-adma: restore channel status .../bindings/dma/nvidia,tegra210-adma.txt | 4 +- drivers/dma/tegra210-adma.c | 232 +++++++++++++++++---- 2 files changed, 193 insertions(+), 43 deletions(-) Reviewed-by: Jon Hunter