From patchwork Tue Jun 4 13:27:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 801895 Received: from smtp-relay-canonical-1.canonical.com (smtp-relay-canonical-1.canonical.com [185.125.188.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 076E8146587; Tue, 4 Jun 2024 13:27:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.125.188.121 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717507682; cv=none; b=hUHJP3TnV7+G/cRIfEA53w1/i7GqRIfIwUiy6EaoLnC+IdQ5OCEm7Orqo6M7sKtBcXo/dPoBbc4/9yMmpHDlmPcUdAQbQHs45rq5Z4Fu/M3SuoOJCewviMoxi2Yu1OPwCLm9m+w3QW5J7db4BJvdjPK7XOxG2+YopaaGXT4IREU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717507682; c=relaxed/simple; bh=XD7sGTd2Gsxw6auJAyBns8W6FqefWrT3nEzqQT0Lca8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=L1+dao4J5tn8ufnBGuccPGgqa4dj8MPMtYrvt6f6dli7F4KDJwsOi6Jx0K5yqsTo4oyo9hbhj56wRQCCSj6p2iubR7IE4ZDMQKYjrRueKbJUv0JnPAvetQPWUI75CKLa7TMMyIIXyF0Y9ZASQCAoqTsKLSv+sOOro9zuDyV2o3E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canonical.com; spf=pass smtp.mailfrom=canonical.com; dkim=pass (2048-bit key) header.d=canonical.com header.i=@canonical.com header.b=mHb7GBUL; arc=none smtp.client-ip=185.125.188.121 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canonical.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=canonical.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=canonical.com header.i=@canonical.com header.b="mHb7GBUL" Received: from hwang4-ThinkPad-T14s-Gen-2a.conference (unknown [123.112.65.116]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id 09942407AA; Tue, 4 Jun 2024 13:27:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1717507676; bh=+rTEg07k9uO3gI73BYv1gqqZWfRUljeZMZ+vQPgJl7A=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mHb7GBULCdVEnDIXP+HRZfNv5bbYo6ONwzJgzXQp1pKbG0QGKtIaTKSsd3ua8yYWz tLXRCN4fCNqcM26unkZTS99EZslV2+4VWFSszMHSCny+abZqR3A8JerH1V1ynQiMVP yaK22fMEO1Fn66EvdEE0cG/Y/q+JKtLryeGq9Mxo0YA3dIOky9NPpkDmPBN4U0vyPw /n8d3Wd6y/z7Mf2cwIyKwnru2C8iCrK9t7Zb6WkXGpMEjbsX5xlqrTMi6Ey+o1UYS8 /R3SF6qbpFIsVLi02OJtGvB0bDPyqKQH4TIYSHluLiWxe++mobGGycyUtxYF36ycS7 0ZMQQKKdiLMPQ== From: Hui Wang To: linux-serial@vger.kernel.org, devicetree@vger.kernel.org, gregkh@linuxfoundation.org Cc: jirislaby@kernel.org, hvilleneuve@dimonoff.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andy@kernel.org, lech.perczak@camlingroup.com, hui.wang@canonical.com Subject: [PATCH v2 1/2] dt-bindings: serial: sc16is7xx: add reset-gpios Date: Tue, 4 Jun 2024 21:27:25 +0800 Message-Id: <20240604132726.1272475-1-hui.wang@canonical.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In some designs, the chip reset pin is connected to a gpio, this gpio needs to be set correctly before probing the driver, so adding a reset-gpios in the device tree. Reviewed-by: Rob Herring Reviewed-by: Krzysztof Kozlowski Signed-off-by: Hui Wang --- In the v2: - include the gpio.h - run the 'make dt_binding_check' and 'make dtbs_check' Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml index 5dec15b7e7c3..88871480018e 100644 --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml @@ -28,6 +28,9 @@ properties: clocks: maxItems: 1 + reset-gpios: + maxItems: 1 + clock-frequency: description: When there is no clock provider visible to the platform, this @@ -91,6 +94,7 @@ unevaluatedProperties: false examples: - | #include + #include i2c { #address-cells = <1>; #size-cells = <0>; @@ -120,6 +124,7 @@ examples: compatible = "nxp,sc16is752"; reg = <0x54>; clocks = <&clk20m>; + reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>; interrupt-parent = <&gpio3>; interrupts = <7 IRQ_TYPE_EDGE_FALLING>; nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */