From patchwork Wed Oct 27 13:45:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12587361 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 A29D7C433FE for ; Wed, 27 Oct 2021 13:45:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 860F660C51 for ; Wed, 27 Oct 2021 13:45:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235360AbhJ0Nro (ORCPT ); Wed, 27 Oct 2021 09:47:44 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:39947 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S242235AbhJ0Nrn (ORCPT ); Wed, 27 Oct 2021 09:47:43 -0400 X-IronPort-AV: E=Sophos;i="5.87,186,1631545200"; d="scan'208";a="98620557" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 27 Oct 2021 22:45:17 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 19E4B4010727; Wed, 27 Oct 2021 22:45:14 +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: [PATCH 1/4] dt-bindings: pincfg-node: Add "output-impedance-ohms" property Date: Wed, 27 Oct 2021 14:45:06 +0100 Message-Id: <20211027134509.5036-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211027134509.5036-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211027134509.5036-1-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-ohms" property in pincfg-node.yaml so that other platforms requiring such feature can make use of this property. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Geert Uytterhoeven Acked-by: Rob Herring Reviewed-by: Linus Walleij --- RFC->v1 * Dropped type * Renamed output-impedance -> output-impedance-ohms --- Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml index 71ed0a9def84..4b22a9e3a447 100644 --- a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml @@ -114,6 +114,9 @@ properties: description: enable output on a pin without actively driving it (such as enabling an output buffer) + output-impedance-ohms: + description: set the output impedance of a pin to at most X ohms + output-low: type: boolean description: set the pin to output mode with low level