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 A35A4C79F9E for ; Mon, 7 Sep 2026 08:17:09 +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=C49HkmDVZ4lVjfKu187yKcJcfrFqGDQxUYYBb3LwzE4=; b=A/KFaSNbuIv72lNZQEHZ4qc90J 05JlJkJlevh7gHCpKZ5CJTqi1KKJxwIGYzgcpZ6fFzO5UYDXInrEu99kD+VmUrUz1nL5lKXfp2jIT +3+JTGeCIlxq29n4J8IvUN5YHxbrjxqeNxur6o2x4ZhYT7iKbN1BUTyGoVbooG+YmUb8VQDOIjpmn BsqA1Zy4EwcQvnPpBbNn41kYM6yddEcecFhpS2xroZctxM13O26rLoOh66cpfTcoEjsuSXlWjIpMp xtm7vgCqQi5R2c45mC+A4DbbleuuS8pLtBzuV+LQMZ/wfOdN9bclBJq0j1z89rff3lpvkAN5NmfT0 BnDXnptg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x3UXB-00000006FIy-2QD0; Mon, 07 Sep 2026 08:16:57 +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 1x3UX5-00000006FGS-1I6x for linux-arm-kernel@lists.infradead.org; Mon, 07 Sep 2026 08:16:56 +0000 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20260907081643euoutp018f1b6ab2e1d798b2618aa7e9bec7f215~S__6IcXVb0125601256euoutp01E for ; Mon, 7 Sep 2026 08:16:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20260907081643euoutp018f1b6ab2e1d798b2618aa7e9bec7f215~S__6IcXVb0125601256euoutp01E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1788769003; bh=C49HkmDVZ4lVjfKu187yKcJcfrFqGDQxUYYBb3LwzE4=; h=Date:Subject:To:Cc:From:In-Reply-To:References:From; b=u7Q2s1heUqMda6W5XRBhcPx+MTlXcqrDqyl2qmNV0zWDSSmMKI2HWoP4uLN9hOlvP XmXHSulGrzA4zdKuuUTjPC1zQMRUSzsgxpRcQp3nM6VrhekYpsbS0+5HfPckFaxkLm fErxQpxeu4pXfP+9s405Gr40nX1gdcKu3786lkHw= Received: from eusmtip2.samsung.com (unknown [203.254.199.222]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20260907081643eucas1p20588c21e5a4fc629f9ebc1f8f15c3522~S__54h-yh1075210752eucas1p2o; Mon, 7 Sep 2026 08:16:43 +0000 (GMT) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20260907081643eusmtip2a290ef3efe626b53d73bbd7fd72e3e51~S__5ZfqCW0517005170eusmtip2N; Mon, 7 Sep 2026 08:16:43 +0000 (GMT) Message-ID: <62afdbc4-f21a-477a-b0ab-de20c96b4b6d@samsung.com> Date: Mon, 7 Sep 2026 10:16:42 +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: <1666390417d0d9b8f58a7bdad1b8ecb475ba0d4f.camel@crapouillou.net> Content-Transfer-Encoding: 8bit X-CMS-MailID: 20260907081643eucas1p20588c21e5a4fc629f9ebc1f8f15c3522 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> <6e319291-72b8-4a43-b953-8a9f0a6049c8@samsung.com> <1666390417d0d9b8f58a7bdad1b8ecb475ba0d4f.camel@crapouillou.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260907_011653_724888_108124C5 X-CRM114-Status: GOOD ( 16.99 ) 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 03.09.2026 15:29, Paul Cercueil wrote: > Le mercredi 02 septembre 2026 à 10:36 +0200, Marek Szyprowski a écrit : >> 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? > I can add it to all exynos4 boards that use the "uartX_fctl" property. > > >> 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... > It looks like it does not. I still think the DT property should be here > but I won't fight over this. I also don't have strong opinion on this issue. Krzysztof: do You see any benefit from adding this "uart-has-rtscts" property, just to describe precisely the actual hardware, even if it won't be used by any driver? Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland