From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 972C4C61DFD for ; Wed, 2 Sep 2026 08:37:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:Content-Type: Content-Transfer-Encoding:In-Reply-To:From:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Sh2rMx7cK5+XuDK7V8W5ht1k2uQ0fYdr83rbG25d8TQ=; b=VowgT0GbOiKkUH6G2AEuCCk/Y6 FV2mXAlw2Lw2qvPH8OpujQEu98j35gaorS/hPaJ90bvxVN+ANewiCYl0Fm1xxsgE4v6jD3J6pXDOV ygth9pMgzyPkaHDNaZQluMihLUKC1hwqCDTsksuQ2AC96QCKMMJmVYSZ7IPLJWzMEc4ziTLyadaWP Q3K17dut+v/D8RvCBIeaaWVF3Wg8C6mldW9L33BrdM+oaC+UAo+bEMo3RgjfbKTpYoQvmUTAAt9nL sfuVi8VP7O32l48cnd8QoJP6/VUvSc/situPqwwG9l/PZaEQ1Eo1BGQ76UybdMea7r9Uz6C0Exabl A124NXIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1gSi-0000000E7CI-0R6g; Wed, 02 Sep 2026 08:36:52 +0000 Received: from mailout1.w1.samsung.com ([210.118.77.11]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1gSe-0000000E7Bm-0gqJ for linux-arm-kernel@lists.infradead.org; Wed, 02 Sep 2026 08:36:50 +0000 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20260902083644euoutp01e5264018b502c4bd66fdf0ffbe52b412~RdB81p24n0793207932euoutp01e for ; Wed, 2 Sep 2026 08:36:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20260902083644euoutp01e5264018b502c4bd66fdf0ffbe52b412~RdB81p24n0793207932euoutp01e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1788338204; bh=Sh2rMx7cK5+XuDK7V8W5ht1k2uQ0fYdr83rbG25d8TQ=; h=Date:Subject:To:Cc:From:In-Reply-To:References:From; b=LgPDbMm9Pidk3GVqcL7oJwvugm3ixmfXh5yFyggtxj0I3XKHQ9s8PAB5lx7axrgpQ tuNdWUK2BIrWhZCqzlu2DHoXkV1O90sAPfeJLlUiyMOwPI+N6+f+qEVYWv0hXUreLW 18b6qBMfQn+MHwM0cJJtlYZePteZQacFlT2hS0Qg= Received: from eusmtip1.samsung.com (unknown [203.254.199.221]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20260902083644eucas1p1fce4b2ee4029aef393c1ca7093a59136~RdB8rV5xn0650106501eucas1p1R; Wed, 2 Sep 2026 08:36:44 +0000 (GMT) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20260902083643eusmtip1a34544f9adf254c73b7d8f7d986b9998~RdB8DyUy50891008910eusmtip1s; Wed, 2 Sep 2026 08:36:43 +0000 (GMT) Message-ID: <6e319291-72b8-4a43-b953-8a9f0a6049c8@samsung.com> Date: Wed, 2 Sep 2026 10:36:43 +0200 MIME-Version: 1.0 User-Agent: Betterbird (Windows) Subject: Re: [PATCH v2] ARM: dts: samsung: exynos4210-i9100: Enable RTS/CTS in Bluetooth node To: Paul Cercueil , 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 Content-Language: en-US From: Marek Szyprowski In-Reply-To: <20260829101509.138284-1-paul@crapouillou.net> Content-Transfer-Encoding: 8bit X-CMS-MailID: 20260902083644eucas1p1fce4b2ee4029aef393c1ca7093a59136 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20260829101532eucas1p29f4e04d4dfd169377793c276221059a6 X-EPHeader: CA X-CMS-RootMailID: 20260829101532eucas1p29f4e04d4dfd169377793c276221059a6 References: <20260829101509.138284-1-paul@crapouillou.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260902_013648_805101_AB516866 X-CRM114-Status: GOOD ( 20.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 29.08.2026 12:15, Paul Cercueil wrote: > The BCM4330 is connected using CTS/RTS too, so add the 'uart-has-rtscts' > property. > > Signed-off-by: Paul Cercueil Indeed the CTS/RTS pins are used for BT on most of the ARM Exynos boards, as the "<&uartX_fctl>" property is assigned for pinctl-0. This is not really specific to i9100, so maybe this property should be added to other dts? However I wonder if Samsung UART driver actually use this "uart-has-rtscts" DT property? A quick "git grep uart-has-rtscts drivers/tty" shows nothing related to Samsung Exynos... > --- > > Notes: > Changes: > > V1 was: "ARM: dts: samsung: exynos4210-i9100: Fix Bluetooth node" > > -v2: Drop max-speed property. It's only supposed to be used in some > cases, which don't apply here. As this was the "fix" for getting > Bluetooth to work on my device, which will be applied to the > driver instead, the Fixes: tag was removed. > > arch/arm/boot/dts/samsung/exynos4210-i9100.dts | 1 + > 1 file changed, 1 insertion(+) > > 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 { > status = "okay"; > > pinctrl-names = "default"; > + uart-has-rtscts; > pinctrl-0 = <&bt_en>, <&bt_res>, <&uart0_data>, <&uart0_fctl>; > > bluetooth { Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland