From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.mleia.com (mleia.com [178.79.152.223]) (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 BD95A23D2A3; Sat, 10 Jan 2026 02:46:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.79.152.223 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768013214; cv=none; b=puav2CaupdG890DRzOHY6p/Tj39tXvfBbJRbzHP/2SOUZaJHWaA5u+gB5/JaZnXhklP5wchOP7ccsJ6DMxxgurY/2+lSHbKMKJgxJ3o/SKAU8stcOIj8Wfwv49rraJeH38T6DSnj/hxNKjJFP3ypr65SwT7LXKZ2otSDNjlHRPo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768013214; c=relaxed/simple; bh=+BYuWtFv/XD2qRphe2CsoPtoHBClY2P0EnzOb7khs3A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bMX29B+pByJE27nLdFSubJ+faTkzB32kUG2PlFii5AQEohzeuJTos10TTapIVrpzUPW9N6G8BycDRV0+RzgpBdPOfFqrLjsIr1cmgVcLFYuepIJjbb2RmNBlIbiYmTMKaz7S4JWaig7fwmnvYNQ+cpeTI5a1b8fvvwtIMQxRioI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mleia.com; spf=none smtp.mailfrom=mleia.com; dkim=pass (2048-bit key) header.d=mleia.com header.i=@mleia.com header.b=c7jZjyRg; dkim=pass (2048-bit key) header.d=mleia.com header.i=@mleia.com header.b=c7jZjyRg; arc=none smtp.client-ip=178.79.152.223 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mleia.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=mleia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mleia.com header.i=@mleia.com header.b="c7jZjyRg"; dkim=pass (2048-bit key) header.d=mleia.com header.i=@mleia.com header.b="c7jZjyRg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mleia.com; s=mail; t=1768013211; bh=+BYuWtFv/XD2qRphe2CsoPtoHBClY2P0EnzOb7khs3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c7jZjyRgclnJ9qJAJncJGwCVsEBdzb8cMGVRKLYAAagW2iDOGsDjxbyWy5LhOOEkw 3YYTs0YVZDerI28SUqSydaAuq9ztVoTGR8vXpWGxYdBLkR4jxK8g1e0qq/9/uHAdFK p+GRRbtAPuLX7LDsycjquqqkPWznXWKlN41+TxCcBYArc6pIA5q2n/oCUx+ZKulOpY dWaOKQ1ygR0DikB1sWyLLd91UFPbEovqGCHOGWMJPjlYMLOryGU8Jp6GzVd8ek8bkn 6SLqyqlVE73anYrOWt09y3jFH67Izd5/fC2yhHITVqUSJbSxcb9Gmte/NM9VIexImv mRyDrSMoQ8oFw== Received: from mail.mleia.com (localhost [127.0.0.1]) by mail.mleia.com (Postfix) with ESMTP id 6C7453EB821; Sat, 10 Jan 2026 02:46:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mleia.com; s=mail; t=1768013211; bh=+BYuWtFv/XD2qRphe2CsoPtoHBClY2P0EnzOb7khs3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c7jZjyRgclnJ9qJAJncJGwCVsEBdzb8cMGVRKLYAAagW2iDOGsDjxbyWy5LhOOEkw 3YYTs0YVZDerI28SUqSydaAuq9ztVoTGR8vXpWGxYdBLkR4jxK8g1e0qq/9/uHAdFK p+GRRbtAPuLX7LDsycjquqqkPWznXWKlN41+TxCcBYArc6pIA5q2n/oCUx+ZKulOpY dWaOKQ1ygR0DikB1sWyLLd91UFPbEovqGCHOGWMJPjlYMLOryGU8Jp6GzVd8ek8bkn 6SLqyqlVE73anYrOWt09y3jFH67Izd5/fC2yhHITVqUSJbSxcb9Gmte/NM9VIexImv mRyDrSMoQ8oFw== Received: from mail.mleia.com (91-159-24-186.elisa-laajakaista.fi [91.159.24.186]) (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 mail.mleia.com (Postfix) with ESMTPSA id BE6123EB823; Sat, 10 Jan 2026 02:46:50 +0000 (UTC) From: Vladimir Zapolskiy To: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Lubomir Rintel , Piotr Wojtaszczyk , devicetree@vger.kernel.org, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/2] arm: dts: lpc32xx: Add ns16550a compatible value to UART device tree nodes Date: Sat, 10 Jan 2026 04:46:47 +0200 Message-ID: <20260110024647.3389345-3-vz@mleia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260110024647.3389345-1-vz@mleia.com> References: <20260110024647.3389345-1-vz@mleia.com> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-49551924 X-CRM114-CacheID: sfid-20260110_024651_461707_31A473D0 X-CRM114-Status: GOOD ( 12.88 ) NXP LPC32xx SoC has 4 16550A compatible UARTs with a difference of minor significance, which is expectedly handled in the 8250 serial driver. Reflect this fact in the platform device tree file by adding the expected compatible value. Signed-off-by: Vladimir Zapolskiy --- arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi b/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi index e94df78def18..8fa1848943f8 100644 --- a/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi +++ b/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi @@ -263,8 +263,7 @@ i2s1: i2s@2009c000 { /* UART5 first since it is the default console, ttyS0 */ uart5: serial@40090000 { - /* actually, ns16550a w/ 64 byte fifos! */ - compatible = "nxp,lpc3220-uart"; + compatible = "nxp,lpc3220-uart", "ns16550a"; reg = <0x40090000 0x1000>; interrupts = <9 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; @@ -273,7 +272,7 @@ uart5: serial@40090000 { }; uart3: serial@40080000 { - compatible = "nxp,lpc3220-uart"; + compatible = "nxp,lpc3220-uart", "ns16550a"; reg = <0x40080000 0x1000>; interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; @@ -282,7 +281,7 @@ uart3: serial@40080000 { }; uart4: serial@40088000 { - compatible = "nxp,lpc3220-uart"; + compatible = "nxp,lpc3220-uart", "ns16550a"; reg = <0x40088000 0x1000>; interrupts = <8 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; @@ -291,7 +290,7 @@ uart4: serial@40088000 { }; uart6: serial@40098000 { - compatible = "nxp,lpc3220-uart"; + compatible = "nxp,lpc3220-uart", "ns16550a"; reg = <0x40098000 0x1000>; interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; -- 2.43.0