From patchwork Wed Aug 26 20:05:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 11739579 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D0B95722 for ; Wed, 26 Aug 2020 20:06:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B90C322B47 for ; Wed, 26 Aug 2020 20:06:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="sAdcDtKk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726876AbgHZUFf (ORCPT ); Wed, 26 Aug 2020 16:05:35 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:15640 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726609AbgHZUFe (ORCPT ); Wed, 26 Aug 2020 16:05:34 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 26 Aug 2020 13:05:20 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 26 Aug 2020 13:05:34 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 26 Aug 2020 13:05:34 -0700 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 26 Aug 2020 20:05:31 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 26 Aug 2020 20:05:31 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.174.186]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Wed, 26 Aug 2020 13:05:31 -0700 From: Sowjanya Komatineni To: , , , , CC: , , , , , Subject: [PATCH v5 0/7] Fix timeout clock used by hardware data timeout Date: Wed, 26 Aug 2020 13:05:07 -0700 Message-ID: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1598472320; bh=OdHdRc/UaKnVvZSMHA9sLxAncOLEzYZlr2zxYS7NCA8=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: X-NVConfidentiality:MIME-Version:Content-Type; b=sAdcDtKkrSV7v71/ylV5CdddbSsNGcdWUtD93tmrrU8I6vAzTN8ABnIMcY2RfqVzO APeQBIJ564TncDxfV852Dy9g1tvAQURmvfcHfeEn3XjnNuTUEsQzfAx4102501Q/JS MLejpnY9Dd885BSoSZvP+1nREqNop/ENTV7T0QYf4knbeNYK9AlEmqITZvucBEk55q RyGGydmX8japWg2pX3H16C8xSTBBtFhZ6HuF0lhS+E0/ezimf/U/MITo2nLFVKZ+JV G+zmIxhlMsovytOJitiQjiedRhQ/tiBgMIcC6lY/CCbb8a0RtgitpbJO3Z6NPSqu27 xKmS6XlQwNOfg== Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Tegra210/Tegra186/Tegra194 has incorrectly enabled SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK from the beginning of their support. Tegra210 and later SDMMC hardware default uses sdmmc_legacy_tm (TMCLK) all the time for hardware data timeout instead of SDCLK and this TMCLK need to be kept enabled by Tegra sdmmc driver. This series includes patches to fix this for Tegra210/Tegra186/Tegra194. These patches need to be manually backported for 4.9, 4.14 and 4.19. Will send patches to backport separately once these patches are ack'd. Delta between patch versions: [v5]: Include below changes based on v4 feedback - updated dt-binding doc to be more clear - updated Tegra sdhci driver to retrieve sdhci and tmclk clocks based on no. of clocks in sdhci device node as old device trees do not use sdhci clock name and this allows proper clock retrival irrespective of sdhci and tmclk clocks order in device tree. - Added separate quirk for identifying SoC's supporting separate timeout clock to be more clear. [v4]: Include additional dt-binding patch [v3]: Same as v2 with fixes tag [v2]: Includes minor fix - Patch-0006: parentheses around operand of '!' Sowjanya Komatineni (7): sdhci: tegra: Remove SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK for Tegra210 sdhci: tegra: Remove SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK for Tegra186 dt-bindings: mmc: tegra: Add tmclk for Tegra210 and later arm64: tegra: Add missing timeout clock to Tegra210 SDMMC arm64: tegra: Add missing timeout clock to Tegra186 SDMMC nodes arm64: tegra: Add missing timeout clock to Tegra194 SDMMC nodes sdhci: tegra: Add missing TMCLK for data timeout .../bindings/mmc/nvidia,tegra20-sdhci.txt | 32 +++++++- arch/arm64/boot/dts/nvidia/tegra186.dtsi | 20 +++-- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 15 ++-- arch/arm64/boot/dts/nvidia/tegra210.dtsi | 20 +++-- drivers/mmc/host/sdhci-tegra.c | 91 +++++++++++++++++++--- 5 files changed, 143 insertions(+), 35 deletions(-)