From patchwork Thu Jul 26 12:19:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aapo Vienamo X-Patchwork-Id: 10545687 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 40ECB112E for ; Thu, 26 Jul 2018 12:20:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F1082B120 for ; Thu, 26 Jul 2018 12:20:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 236612B11E; Thu, 26 Jul 2018 12:20:32 +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=-7.9 required=2.0 tests=BAYES_00,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 C68C92B12A for ; Thu, 26 Jul 2018 12:20:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730197AbeGZNgK (ORCPT ); Thu, 26 Jul 2018 09:36:10 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:11871 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729479AbeGZNgJ (ORCPT ); Thu, 26 Jul 2018 09:36:09 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1, AES128-SHA) id ; Thu, 26 Jul 2018 05:19:24 -0700 Received: from HQMAIL108.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Thu, 26 Jul 2018 05:19:29 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Thu, 26 Jul 2018 05:19:29 -0700 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL108.nvidia.com (172.18.146.13) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 26 Jul 2018 12:19:34 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1347.2 via Frontend Transport; Thu, 26 Jul 2018 12:19:34 +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 05:19:33 -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 02/10] dt-bindings: mmc: tegra: Add nvidia,only-1-8-v property Date: Thu, 26 Jul 2018 15:19:12 +0300 Message-ID: <1532607560-11253-3-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-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a property to mark controllers which operate at a 1.8 V fixed I/O voltage. This feature of the hardware needs to be signaled this way because it cannot be probed at runtime or reliably derived from other properties. Signed-off-by: Aapo Vienamo --- Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 90c214d..95010cf 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt @@ -45,6 +45,8 @@ Optional properties for Tegra210 and Tegra186: for controllers supporting multiple voltage levels. The order of names should correspond to the pin configuration states in pinctrl-0 and pinctrl-1. +- nvidia,only-1-8-v : The presence of this property indicates that the + controller operates at a 1.8 V fixed I/O voltage. Example: sdhci@700b0000 {