From patchwork Tue Jun 18 11:26:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 805925 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 8867E139D11; Tue, 18 Jun 2024 11:27:58 +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=1718710080; cv=none; b=hVo/64bwWMwyy7tCLoVMGmyjoKmgUvkYBHjvE3F47FFAOQaUwsjy+l6/+HJER1OzH/LVhb1qp+RFQ3L/t9wNQCLcWQmqd0i6Dj/QaHfgSW9V8ul7qFhTVyxFfvzcYbS+lVdZPPiLsY+GffC2M+dEFk7DixxH86DCvhHjEJ+kGBU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718710080; c=relaxed/simple; bh=9cakxw16MG1Is2XYxq435WdMffeoOQdzvmvP9zz7Jv4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=k47ZzN4o2N2I87jRgZWj8WqC3KQ13B/uAxXofH+vUfyWrsFxtFls8BBy5R6tgmxBxu3v8Y4sbRSqq4hfzOlaGcJiGmc06v/f/PwFNHfKARh/srQdRZHaA+WT1j8ly1C0KQRk/b2kcmB5mCsxLZspIrVVfDz8z52E/TGOhHyeHfk= 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=kuPNntk1; 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="kuPNntk1" 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 15ED33F1E5; Tue, 18 Jun 2024 11:27:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1718710075; bh=MevBdRTfcD5TvScobUERArql+8UMb7ptftVJJxjWRKA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=kuPNntk1ecl6ISDOmdh3CSO4M/FJWNrb52Y2tCJUFXHtrgR9QMrpkk8EIvqQugz21 9Y8uvEdNbxTfuGcjuhvrBSD5WW9GeJLnhVsd3mEdvBu2CX6ae7wLfYpWGdGrO+dbxT 8Jm8A4n70xuEvPR0k74uadgtErr7STUSGbCwEX25PjYUXPHAwmIUqxL3ZRxHIde+aR C39itLrAqF0TELAE3628LdJW1Xjf5IrxlwwXJ0zxXFERJNVcXyBMoSB/1fvZ9DR6XQ vPqBDuSJF5MFMMvrkwcDvBMphzxdizJ7I5PwsVPUue3iC5Ixs3TnFPcfNyBLy+6Nop cmXn9oXdUo8MA== 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, Maarten.Brock@sttls.nl, hui.wang@canonical.com Subject: [PATCH v6 1/2] dt-bindings: serial: sc16is7xx: add reset-gpios Date: Tue, 18 Jun 2024 19:26:19 +0800 Message-Id: <20240618112620.152848-1-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, and this GPIO needs to be set correctly before probing the driver, so add a reset-gpios in the device tree. Acked-by: Conor Dooley Reviewed-by: Lech Perczak Tested-by: Hugo Villeneuve Reviewed-by: Hugo Villeneuve Signed-off-by: Hui Wang --- No change in the v6 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 */