From patchwork Mon Jan 31 12:18:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12730603 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 aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE150C43217 for ; Mon, 31 Jan 2022 12:19:11 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.31576.1643631550482787347 for ; Mon, 31 Jan 2022 04:19:10 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: prabhakar.mahadev-lad.rj@bp.renesas.com) X-IronPort-AV: E=Sophos;i="5.88,330,1635174000"; d="scan'208";a="108231883" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 31 Jan 2022 21:19:07 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 6BA764347FEA; Mon, 31 Jan 2022 21:19:06 +0900 (JST) From: Lad Prabhakar To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das Subject: [PATCH 5.10.y-cip 01/27] dt-bindings: pincfg-node: Add "output-impedance-ohms" property Date: Mon, 31 Jan 2022 12:18:37 +0000 Message-Id: <20220131121903.8620-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220131121903.8620-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220131121903.8620-1-prabhakar.mahadev-lad.rj@bp.renesas.com> List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 31 Jan 2022 12:19:11 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/7521 commit 7388fa8acfce2c3b41babc53c3f3d0b247b098af upstream. 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 Acked-by: Rob Herring Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20211027134509.5036-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Lad Prabhakar --- 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