From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from aposti.net (aposti.net [185.119.170.32]) (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 E38103AAF45; Tue, 1 Sep 2026 14:27:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.119.170.32 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788272830; cv=none; b=hbOz8lEUCxuzvPLt09Z3RPMXGqkrF9B2wnRCLHLKGkE6TrD2oAxPkFV5GNabiE3wAlnP401z1P7u3bDtIH+avO4tFHCv6C8VRGqPr4o2HnGTkwM4zO44C2/XqNNoCj/fI9yqV/qj20O/ERLMRDmEAdBUTQiVG7/KpHLVOjpGef0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788272830; c=relaxed/simple; bh=AhJNT/NbiwuvDf+yhvjO9/pLXEAE/7mBodgsYiWNRmo=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=AXdnULtukFKyolXdXmYhS3Qpg/h8PL6HBaxCRvbqxPohQp6+SQBrxncUCF1/6QlWL7DHHQrrE0LoplhO5x0YCLcVlR7lUb1dGLAF8+dcU5KS2usgLfLccRuYVLiNS/x4faob8XMUbAd7EE/LS7I7mfIYqVCdY8yh/mSTF1WZHP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=crapouillou.net; spf=pass smtp.mailfrom=crapouillou.net; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b=jLL8kVCh; arc=none smtp.client-ip=185.119.170.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=crapouillou.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=crapouillou.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="jLL8kVCh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=crapouillou.net; s=mail; t=1788272825; bh=AhJNT/NbiwuvDf+yhvjO9/pLXEAE/7mBodgsYiWNRmo=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=jLL8kVChJrcMXifFJ8V/P84E0/24nUQgS+ci5c89I5Fexk2RNxA74Cv69rgGSgM7W rQHAChMAv3g9HY3iwr6Kw56w5MEP8Io2TobR78vxtSl9grpjaf/h8qdC9GeChqHLiY NTPzjFZz+65dnrasrThCDW2RX88SfcCLwHG2XhX0= Message-ID: Subject: Re: [PATCH v2] ARM: dts: samsung: exynos4210-i9100: Enable RTS/CTS in Bluetooth node From: Paul Cercueil To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , Alim Akhtar Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Date: Tue, 01 Sep 2026 16:27:03 +0200 In-Reply-To: <20260829101509.138284-1-paul@crapouillou.net> References: <20260829101509.138284-1-paul@crapouillou.net> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi, Le samedi 29 ao=C3=BBt 2026 =C3=A0 12:15 +0200, Paul Cercueil a =C3=A9crit= =C2=A0: > The BCM4330 is connected using CTS/RTS too, so add the 'uart-has- > rtscts' > property. >=20 > Signed-off-by: Paul Cercueil > --- >=20 > Notes: > =C2=A0=C2=A0=C2=A0 Changes: > =C2=A0=C2=A0=C2=A0=20 > =C2=A0=C2=A0=C2=A0 V1 was: "ARM: dts: samsung: exynos4210-i9100: Fix Blue= tooth node" > =C2=A0=C2=A0=C2=A0=20 > =C2=A0=C2=A0=C2=A0 -v2: Drop max-speed property. It's only supposed to be= used in > some > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 cases, which don't apply= here. As this was the "fix" for > getting > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Bluetooth to work on my = device, which will be applied to the > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 driver instead, the Fixe= s: tag was removed. I'll V3. I think I did not understand properly what 'max-speed' was for, and indeed it does apply in this case - the Bluetooth chip's maximum rate is 4 Mbps while the max baudrate of the SoC's UART is 3 Mbps. Cheers, -Paul >=20 > =C2=A0arch/arm/boot/dts/samsung/exynos4210-i9100.dts | 1 + > =C2=A01 file changed, 1 insertion(+) >=20 > diff --git a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts > b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts > index 8a635bee59fa..95964be7daa8 100644 > --- a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts > +++ b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts > @@ -875,6 +875,7 @@ &serial_0 { > =C2=A0 status =3D "okay"; > =C2=A0 > =C2=A0 pinctrl-names =3D "default"; > + uart-has-rtscts; > =C2=A0 pinctrl-0 =3D <&bt_en>, <&bt_res>, <&uart0_data>, > <&uart0_fctl>; > =C2=A0 > =C2=A0 bluetooth {