From patchwork Thu Sep 30 12:16:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12528163 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4940C43219 for ; Thu, 30 Sep 2021 12:17:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE0E961265 for ; Thu, 30 Sep 2021 12:17:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350787AbhI3MTD (ORCPT ); Thu, 30 Sep 2021 08:19:03 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:10230 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1350749AbhI3MTC (ORCPT ); Thu, 30 Sep 2021 08:19:02 -0400 X-IronPort-AV: E=Sophos;i="5.85,336,1624287600"; d="scan'208";a="95682445" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 30 Sep 2021 21:17:18 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C1C51437E78F; Thu, 30 Sep 2021 21:17:16 +0900 (JST) From: Lad Prabhakar To: Linus Walleij , Rob Herring , Geert Uytterhoeven , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [RFC PATCH 1/4] dt-bindings: pincfg-node: Add "output-impedance" property Date: Thu, 30 Sep 2021 13:16:27 +0100 Message-Id: <20210930121630.17449-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210930121630.17449-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210930121630.17449-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org On RZ/G2L SoC for Group-B pins, output impedance can be configured. This patch documents "output-impedance" property in pincfg-node.yaml so that other platforms requiring such feature can make use of this property. Signed-off-by: Lad Prabhakar --- Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml index 71ed0a9def84..cdcb23daeca2 100644 --- a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml @@ -114,6 +114,10 @@ properties: description: enable output on a pin without actively driving it (such as enabling an output buffer) + output-impedance: + $ref: /schemas/types.yaml#/definitions/uint32 + description: set the pins output impedance at most X ohm + output-low: type: boolean description: set the pin to output mode with low level