From patchwork Thu Jul 26 12:19:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aapo Vienamo X-Patchwork-Id: 949604 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41brkc6441z9ryt for ; Thu, 26 Jul 2018 22:19:36 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730175AbeGZNgG (ORCPT ); Thu, 26 Jul 2018 09:36:06 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:16652 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729479AbeGZNgG (ORCPT ); Thu, 26 Jul 2018 09:36:06 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1, AES128-SHA) id ; Thu, 26 Jul 2018 05:19:33 -0700 Received: from HQMAIL107.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Thu, 26 Jul 2018 05:19:27 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Thu, 26 Jul 2018 05:19:27 -0700 Received: from HQMAIL103.nvidia.com (172.20.187.11) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 26 Jul 2018 12:19:31 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL103.nvidia.com (172.20.187.11) with Microsoft SMTP Server (TLS) id 15.0.1347.2 via Frontend Transport; Thu, 26 Jul 2018 12:19:31 +0000 Received: from dhcp-10-21-25-168.Nvidia.com (Not Verified[10.21.25.201]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 26 Jul 2018 05:19:31 -0700 From: Aapo Vienamo To: Ulf Hansson , Rob Herring , Mark Rutland , Thierry Reding , Jonathan Hunter , Adrian Hunter , Mikko Perttunen CC: , , , , Aapo Vienamo Subject: [PATCH v2 01/10] dt-bindings: mmc: tegra: Add pad voltage control properties Date: Thu, 26 Jul 2018 15:19:11 +0300 Message-ID: <1532607560-11253-2-git-send-email-avienamo@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1532607560-11253-1-git-send-email-avienamo@nvidia.com> References: <1532607560-11253-1-git-send-email-avienamo@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Document the pinctrl bindings used by the SDHCI driver to reconfigure pad voltages on controllers supporting multiple voltage levels. Signed-off-by: Aapo Vienamo Reviewed-by: Mikko Perttunen Reviewed-by: Rob Herring --- .../bindings/mmc/nvidia,tegra20-sdhci.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 9bce578..90c214d 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt @@ -38,3 +38,25 @@ sdhci@c8000200 { power-gpios = <&gpio 155 0>; /* gpio PT3 */ bus-width = <8>; }; + +Optional properties for Tegra210 and Tegra186: +- pinctrl-names, pinctrl-0, pinctrl-1 : Specify pad voltage + configurations. Valid pinctrl-names are "sdmmc-3v3" and "sdmmc-1v8" + for controllers supporting multiple voltage levels. The order of names + should correspond to the pin configuration states in pinctrl-0 and + pinctrl-1. + +Example: +sdhci@700b0000 { + compatible = "nvidia,tegra210-sdhci", "nvidia,tegra124-sdhci"; + reg = <0x0 0x700b0000 0x0 0x200>; + interrupts = ; + clocks = <&tegra_car TEGRA210_CLK_SDMMC1>; + clock-names = "sdhci"; + resets = <&tegra_car 14>; + reset-names = "sdhci"; + pinctrl-names = "sdmmc-3v3", "sdmmc-1v8"; + pinctrl-0 = <&sdmmc1_3v3>; + pinctrl-1 = <&sdmmc1_1v8>; + status = "disabled"; +};