From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 7A1C0439331; Thu, 3 Sep 2026 08:28:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424107; cv=none; b=FR+v9sd+mAbZ5BTu8FvgrkQthXBoYP4txVUMuiN0ElBjpLqKlnXhVMexCLV1bPf60TYkFj5wn6EmdKvESRan3WAwZ1vt68D8NBcJpN809GTl6YA7YWRPilRcgYY4pN9iuLYz6otV+HVn1r0aMGZgxggYE/qnGTPJeu6H+0ti7T0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424107; c=relaxed/simple; bh=gxyN0inF6LFVlALsQscUp0yPnDl9IKTwzmTnq1LtqMo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=L4WS30dq/Ac9sfIHawv3xnaxHYOAz/Ec/YQdfuO2oUXVKWW4a9Vv7p9xWheigMoqLCtwuxj/bxyN3tIzKwo73F1MsxnpKRB0daHSrjmbqpQFesCW3li/rDI7IRX/y4TxBk3xBdHm0KYl2Nz2Uw9LpNjnlJaRuIRmDcNaK9/OiuE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=l0MjF3X5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="l0MjF3X5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 215B51F00A3A; Thu, 3 Sep 2026 08:28:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788424106; bh=VC4wHaers98T5HZdg4G5azg+tGdn9DxjhYKU+8WULhY=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=l0MjF3X5L4D1m8zAbHfArXBpv1109NHOaIS4TQ4jY51lfp4iPu2mAavFHyuqpgssC HiqtQmYIV3wCxf84hFemXmqQSRZxlXPKgbg8gcrztJto2v4rKVnswUbBzT81eM1OKI 7L1/83jYYV/1FnTKuSCEBAbXwEX6G540Un6RgQcGgYRlhGD5qpnnBAUobSlfGgx8ht PPpntG6/ytCVKW/0pUUpAfWodDDabV+Ef9U48S7PzVVrmhU9pepoqa3xPgKs2Zf2ea b8tsniYwjJpSckyRmDpnstdCvOtWywz6Qslo4CBf4j0xwLjy93wcgy2c+RDQJ9jtVe 6T9MEfxav1DNw== Message-ID: Date: Thu, 3 Sep 2026 10:28:16 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 1/9] dt-bindings: display: renesas,rzg2l-du: Document RZ/G3E SoC To: Philipp Zabel , Tommaso Merciai , Geert Uytterhoeven Cc: tomm.merciai@gmail.com, linux-renesas-soc@vger.kernel.org, biju.das.jz@bp.renesas.com, David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Laurent Pinchart , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260828122113.1426778-1-tommaso.merciai.xr@bp.renesas.com> <20260828122113.1426778-2-tommaso.merciai.xr@bp.renesas.com> <20260902-heavenly-ambrosial-trogon-b7ab03@quoll> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 03/09/2026 10:17, Philipp Zabel wrote: > On Mi, 2026-09-02 at 17:11 +0200, Tommaso Merciai wrote: >>>>>> + reset-names: >>>>>> + items: >>>>>> + - const: resetn >>>>>> + - const: resetn1 >>>>> >>>>> Drop reset-names >>>> >>>> For reset-names, I got the the following comment from Philipp in v7 [1]. >>>> >>>> Dropping reset-names would force the driver back to an index-based >>>> lookup, which is what that comment explicitly asked me to avoid. >>>> >>>> [1] https://lore.kernel.org/all/8382e2b9fd07fb1132c26e228b3899336fc1fdd4.camel@pengutronix.de/ >>>> >>>> Philipp, Krzysztof, could you agree on which way you'd prefer? >>>> I'll follow whatever you decide. >>> >>> Until we get a variant with a third interrupt (or reset or reg), >>> which is not related to the number of channels... >> >> Right, IMHO names keep the driver flexible enough for such a variant, >> indices don't. > > I would like to get rid of the reset_control_get_by_index() API > altogether, if possible. Currently there are only users with index == > 0, so this would be the first and so far only valid user. I'd prefer if > we could keep reset lookup aligned with clock lookup, with via clock- > names as well. ...and clk uses indexing partially. clk_get() is the corresponding interface to get the index 0 and is widely used. I agree though there is no general get-by-index API. If reset won't provide such API, then fine for the names, but the order of entries is still fixed thus the names are NOT allowing to change the order. > > That being said, why are the two DU units represented as a single > device tree node at all? Aren't they two completely separate instances > of the same IP core? Best regards, Krzysztof