From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4BF81606A320 for ; Tue, 20 Oct 2026 17:47:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=49uCf9tT; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=T5klA8w8 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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; 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Tue, 20 Oct 2026 17:47:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792518456; bh=HAHTPseBysoQyjFWdWhxEUoIlAFSx4P0uFPxuTZC58E=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=T5klA8w8ldhaGXex5p2C1vk2XmCWEI5ePLrDsiyhXLVFchdZEn+v5/j//jHND7keT Meqe1HYRaPtXccMkRp824RMlBY/ggOISFpPO91xfQXQlxRa2BEF/hHxRG/jK8L1CgQ 9muVPdNXFcV74oJ2Dgz4HaRViQo1tQbIdaPr+01vyY4wLmybDhkP+Vl1I+bioV+Ygq uCkDYDCq983KX1BvcP2HAwIVds8N7k+Rqtsxjca0Ovu269GytYQIsu/QGvdh3m3Bcg UwXzztQF8VoJ3nyz6bU2aIRxqOIpInSrUm2TtfG3URLEtNoUiddkCE0GL6sKdGKVFJ c6nOo9rgiy+pg== Date: Tue, 20 Oct 2026 18:47:29 +0100 From: Conor Dooley To: Jisheng Zhang Cc: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephen Boyd , Brian Masney , Jerome Brunet , Andi Shyti , Alexandre Belloni , Frank Li , Lee Jones , Linus Walleij , Liam Girdwood , Mark Brown , Greg Kroah-Hartman , Jiri Slaby , Sebastian Hesselbarth , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-i2c@vger.kernel.org, linux-i3c@lists.infradead.org, mfd@lists.linux.dev, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 04/20] dt-bindings: i3c: dw: support up to two reset lines Message-ID: <20261020-endocrine-crown-c6d3c83cf436@spud> References: <20260929061417.20733-1-jszhang@kernel.org> <20260929061417.20733-5-jszhang@kernel.org> <80b084d130b7dc7406ae23e54a77706a4f42b606.camel@pengutronix.de> X-Archived-By: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="PF0S8SXN4APeQtUF" Content-Disposition: inline In-Reply-To: X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 --PF0S8SXN4APeQtUF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 20, 2026 at 09:08:08AM +0800, Jisheng Zhang wrote: > On Mon, Oct 19, 2026 at 02:55:14PM +0200, Philipp Zabel wrote: > > On Di, 2026-09-29 at 14:14 +0800, Jisheng Zhang wrote: > > > The Synopsys DesignWare I3C master controller can have multiple reset > > > lines, such as core reset, apb reset, and dma reset. > > >=20 > > > Update the DT binding documentation to increase maxItems for the rese= ts > > > property to 2. > >=20 > > The last sentence just listed three reset lines. Why increase to 2? >=20 > Per the doc, the last one is dma reset, currently dw I3C driver doesn't s= upport dma. > And increasing it to 3 is still dt compatible. Maybe I misunderstood > something. what's more, I don't have platforms with all 3 resets to test = and verify. >=20 > If dt maintainers prefer 3 in one step, I will sent out a follow-up patch. I think you can increase it to 3 globally, then restrict to 1 for the altera device and 2 for your new one. --PF0S8SXN4APeQtUF Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCatepLgAKCRB4tDGHoIJi 0nTbAP41tIofP+UpvSN0IwKJvT76VMbRwSrA7SIYBjKeyCaPgwEA7iCZGXK59MXH F8eKb5c+ngwawXhmX7aqW4NflYqjyAY= =Yxu4 -----END PGP SIGNATURE----- --PF0S8SXN4APeQtUF--