From nobody Tue Apr 7 09:21:32 2026 Received: from va-2-39.ptr.blmpb.com (va-2-39.ptr.blmpb.com [209.127.231.39]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E3ECE38AC7A for ; Sat, 14 Mar 2026 23:41:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.127.231.39 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773531716; cv=none; b=lVOMfUQRcmwnb6mmcPTDWAWS3vHpK58isg6TQ4IqO+23kHltEeO89E03fiBWTH0cxGM2G7s/8WK7lBkDzSLh28oskRCQ2dyxu94zM8ko2CTS9oHa5IbhX+NdjtxqDiWaSa5JJx6Oo8HMMIMuqfb8Fq0WXWdaXPNIvbC0piad/cI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773531716; c=relaxed/simple; bh=jm7rXByn7R76HvNJnKE25FhL+cyLR5bGS1nz/RgRzb0=; h=In-Reply-To:To:Cc:From:Subject:Message-Id:Mime-Version:Date: References:Content-Type; b=uQM0DckV8rS0yvi2Q5/3wPOAqNKCH8rsVI0zqiggip7WTNWCho8TnJJeZC6ikI3h7h8Ld+7lG4+uP3C7eg6N1l3ZoGgWFI0CY/lhvDfVpTwcDbj2u42A4fTx2GIU4xmz4uPYGSueVkVsYt4GkSHWHwucmvUEBZCr/Uof7ALMU/Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.cipunited.com; spf=pass smtp.mailfrom=oss.cipunited.com; dkim=pass (2048-bit key) header.d=oss.cipunited.com header.i=@oss.cipunited.com header.b=vlQ/m5bI; arc=none smtp.client-ip=209.127.231.39 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.cipunited.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.cipunited.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oss.cipunited.com header.i=@oss.cipunited.com header.b="vlQ/m5bI" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=feishu2303200042; d=oss.cipunited.com; t=1773531709; h=from:subject:mime-version:from:date:message-id:subject:to:cc: reply-to:content-type:mime-version:in-reply-to:message-id; bh=NuHxZnrmW9mfPVCNo1dVIioyYd9nuGxeDz8GheH7iCw=; b=vlQ/m5bIbb8C8UgcB8z0cE7F6mKN/tCZG5QHy//NZsYWfkCHIkCslNuVW91rtk/02Wwn6+ /mVe6QzVxmtvijmbg8pgyX4E0fbj6p3R9GFZQ9Hxso+Z2RlaP6iERnvI20rBw11ZCc2QVF YHwa0YAsJrthg2Tw3AKFbBACDYIV2G986SBy3lznjOCHeQCXYQ/yPZ2hpNe8aGW8Ky2TEI pRkqWIBes/9vzLjpEvfJyUE/f2YbgOFgFbv7w8cAa+i8LPMVFd8X8YeJ/JD5aV2r8yGUK5 wmZ0fl6NltvLcVOGEKEMu8Nvlra4ubywhAXjREhWINjfqMgpKpKs7LEpa8vqtw== In-Reply-To: <20260314234143.651298-1-rongrong@oss.cipunited.com> To: "Greg Kroah-Hartman" , "Jiri Slaby" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Thomas Bogendoerfer" , "Huacai Chen" , "Jiaxun Yang" Cc: "Rong Zhang" , , , , , "Yao Zi" , "Icenowy Zheng" , "Rong Zhang" From: "Rong Zhang" Subject: [PATCH 1/3] dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible Message-Id: <20260314234143.651298-2-rongrong@oss.cipunited.com> X-Mailer: git-send-email 2.53.0 X-Original-From: Rong Zhang Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Lms-Return-Path: Date: Sun, 15 Mar 2026 07:41:41 +0800 Received: from tb ([223.88.91.90]) by smtp.feishu.cn with ESMTPS; Sun, 15 Mar 2026 07:41:46 +0800 References: <20260314234143.651298-1-rongrong@oss.cipunited.com> Content-Type: text/plain; charset="utf-8" The UART controller on Loongson 3A4000 is compatible with Loongson 2K1500, which is NS16550A-compatible with an additional fractional frequency divisor register. Add loongson,ls3a4000-uart as compatible with loongson,ls2k1500-uart. Signed-off-by: Rong Zhang Acked-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/serial/8250.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/serial/8250.yaml b/Documenta= tion/devicetree/bindings/serial/8250.yaml index 73851f19330d..1d1f2a22776c 100644 --- a/Documentation/devicetree/bindings/serial/8250.yaml +++ b/Documentation/devicetree/bindings/serial/8250.yaml @@ -179,6 +179,7 @@ properties: - const: ns16550a - items: - enum: + - loongson,ls3a4000-uart - loongson,ls3a5000-uart - loongson,ls3a6000-uart - loongson,ls2k2000-uart --=20 2.53.0