From patchwork Mon Aug 3 19:44:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 11698723 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 508811575 for ; Mon, 3 Aug 2020 19:44:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A858722CB1 for ; Mon, 3 Aug 2020 19:44:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="axOc1qr0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728518AbgHCToc (ORCPT ); Mon, 3 Aug 2020 15:44:32 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:6349 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726906AbgHCToc (ORCPT ); Mon, 3 Aug 2020 15:44:32 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 03 Aug 2020 12:44:18 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 03 Aug 2020 12:44:32 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 03 Aug 2020 12:44:32 -0700 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 3 Aug 2020 19:44:31 +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; Mon, 3 Aug 2020 19:44:31 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.167.221]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Mon, 03 Aug 2020 12:44:30 -0700 From: Sowjanya Komatineni To: , , , , CC: , , , , Subject: [PATCH v1 4/6] arm64: tegra: Add missing timeout clock to Tegra186 SDMMC nodes Date: Mon, 3 Aug 2020 12:44:21 -0700 Message-ID: <1596483863-22153-5-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1596483863-22153-1-git-send-email-skomatineni@nvidia.com> References: <1596483863-22153-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1596483858; bh=eFc2VU5GTK3y8YU8lvXMTIrju/5qbDsv3weenC955gY=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=axOc1qr08OYIAXDeOk7G7jvEFPBICz33ZtJTUrItnkjxbRqDG8GXHYy7lNvC1bPqq hyI4LCx7rgPe8B8s/jK1OaFx8kYJm8iLLXn2OJqsH/vsfZTOrdFyDlfTEB3ExPV9id V17Enl0F/ig7FU9z9PxlPT/zFxTEsEBU7STBbmoz0QY7FCyQQ2eDNZoMzxRFGDLSCz nVYYsmcnygc5taLJqaD/tC7mHja9EAl8X0Qsors1OFstXq1EVcgCxIt7XHhlPbbi9o CtvMGkSchAkJpjOlzmJEfykL/JHf8n7FYwdGUgEz1RjuaTYUYWAa0ETbeVbb3mE7S3 MyuU/pmAbUWNg== Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org commit 39cb62cb8973 ("arm64: tegra: Add Tegra186 support") Tegra186 uses separate SDMMC_LEGACY_TM clock for data timeout and this clock is not enabled currently which is not recommended. Tegra186 SDMMC advertises 12Mhz as timeout clock frequency in host capability register and uses it by default. So, this clock should be kept enabled by the SDMMC driver. Signed-off-by: Sowjanya Komatineni --- arch/arm64/boot/dts/nvidia/tegra186.dtsi | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi index 34d249d..8eb61dd 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi @@ -337,8 +337,9 @@ compatible = "nvidia,tegra186-sdhci"; reg = <0x0 0x03400000 0x0 0x10000>; interrupts = ; - clocks = <&bpmp TEGRA186_CLK_SDMMC1>; - clock-names = "sdhci"; + clocks = <&bpmp TEGRA186_CLK_SDMMC1>, + <&bpmp TEGRA186_CLK_SDMMC_LEGACY_TM>; + clock-names = "sdhci", "tmclk"; resets = <&bpmp TEGRA186_RESET_SDMMC1>; reset-names = "sdhci"; interconnects = <&mc TEGRA186_MEMORY_CLIENT_SDMMCRA &emc>, @@ -366,8 +367,9 @@ compatible = "nvidia,tegra186-sdhci"; reg = <0x0 0x03420000 0x0 0x10000>; interrupts = ; - clocks = <&bpmp TEGRA186_CLK_SDMMC2>; - clock-names = "sdhci"; + clocks = <&bpmp TEGRA186_CLK_SDMMC2>, + <&bpmp TEGRA186_CLK_SDMMC_LEGACY_TM>; + clock-names = "sdhci", "tmclk"; resets = <&bpmp TEGRA186_RESET_SDMMC2>; reset-names = "sdhci"; interconnects = <&mc TEGRA186_MEMORY_CLIENT_SDMMCRAA &emc>, @@ -390,8 +392,9 @@ compatible = "nvidia,tegra186-sdhci"; reg = <0x0 0x03440000 0x0 0x10000>; interrupts = ; - clocks = <&bpmp TEGRA186_CLK_SDMMC3>; - clock-names = "sdhci"; + clocks = <&bpmp TEGRA186_CLK_SDMMC3>, + <&bpmp TEGRA186_CLK_SDMMC_LEGACY_TM>; + clock-names = "sdhci", "tmclk"; resets = <&bpmp TEGRA186_RESET_SDMMC3>; reset-names = "sdhci"; interconnects = <&mc TEGRA186_MEMORY_CLIENT_SDMMCR &emc>, @@ -416,8 +419,9 @@ compatible = "nvidia,tegra186-sdhci"; reg = <0x0 0x03460000 0x0 0x10000>; interrupts = ; - clocks = <&bpmp TEGRA186_CLK_SDMMC4>; - clock-names = "sdhci"; + clocks = <&bpmp TEGRA186_CLK_SDMMC4>, + <&bpmp TEGRA186_CLK_SDMMC_LEGACY_TM>; + clock-names = "sdhci", "tmclk"; assigned-clocks = <&bpmp TEGRA186_CLK_SDMMC4>, <&bpmp TEGRA186_CLK_PLLC4_VCO>; assigned-clock-parents = <&bpmp TEGRA186_CLK_PLLC4_VCO>;