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 45233C433F5 for ; Fri, 4 Feb 2022 09:47:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+Gs7KGokM7DyZh3zFDM6WQ6yFSnGn61zpk0ch1HB2hA=; b=p0LK5bhJ2RDQ1u FeHngeOQj7oxOkRy7j1NT9nLJubcZ+9H5VogD0V4icPyms25XrmGB/2qm+s5ZQ49VqPdb9zvl5RRg +ybthNTKfyGKJ3pwM7qHIE0wnP+AGmOT6nGu9fekGfcfcWUgnMsHodTipxuDOpgJhn2BHTJ/1JYxJ Ejd5NpEARbmSLKsmtUiY2Ha3mGTN5DHnZRlU4gnzFQQcWSTZzHRTbR0zU67CicHkjz/tPW7tJkT3P wADRC81rMVcs2jo0jq70aks3valGKDjnsAxOGTcaWPBBToWWtV5HbJ7ml0bJZZ7ZDHZtHz8ggR0ka 9i4LcREi+j1fw0Tg5I9A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nFvAd-003wQa-Vr; Fri, 04 Feb 2022 09:46:24 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nFvAa-003wM7-M5 for linux-arm-kernel@lists.infradead.org; Fri, 04 Feb 2022 09:46:22 +0000 Received: (Authenticated sender: alexandre.belloni@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 3A04324000D; Fri, 4 Feb 2022 09:46:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1643967974; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=GeZ3RTrEGPyDxaCxWgqBxzeCFQNbWVTVIwN4+w/oDeM=; b=CuXaJ2xofz/y/RuNSua2NOHdaZ5uD8u78AmLi3uWgejx5P1SFkDnTyRjvK+4E1g24BXS8O InIVqhWzGfZHtJIdUbssUyEtbNJ+OPc7TM7xx5mGjE/d/TKaK11ecaMAAop7AMT5NpkKBK hNoss69P2NEhe2dJ5jA5ZKZumDCLFX/jCbkYDQGAt6++ICajuVh43Z7n1N/By8RxSlsaGb z7wtwhZQjnhFQiI5GH7wkwzqdHT5TtrKzZ+1kNg8msxsVJaEmiP50NCQLhWezjaOpGkcSm vD4BURSzPIfamySBh0Hz4Iy873bo57P/nDiyCJie5DcFXoHngSwOHRkyau+bsA== Date: Fri, 4 Feb 2022 10:46:14 +0100 From: Alexandre Belloni To: Eugen Hristev Subject: Re: [PATCH] dt-bindings: microchip: atmel,at91rm9200-tcb: remove mandatory interrupts property Message-ID: References: <20220204081446.474991-1-eugen.hristev@microchip.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220204081446.474991-1-eugen.hristev@microchip.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220204_014620_888714_88291150 X-CRM114-Status: GOOD ( 20.03 ) 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: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, clement.leger@bootlin.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 04/02/2022 10:14:46+0200, Eugen Hristev wrote: > The timer block can be used only to be read and to measure time in a polling > fashion. This can be used by Linux like this for example, or it can be used > by different projects which do not have interrupt controllers, or do not > wish to enable them (e.g. U-boot). > As DT is ABI, the binding should relate to all possible use cases and describe > the hardware and the requirements. > The interrupt is not a hard requirement for the timer to function in a > specific way. > Thus, choose to remove the interrupts property from the mandatory list of > properties. > The correct hardware description is that the interrupt is present on the IP. Having software behave differently depending on the presence of that property is configuration, not hardware description. > Signed-off-by: Eugen Hristev > --- > .../devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml b/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml > index 597d67fba92f..27f78459b892 100644 > --- a/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml > +++ b/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml > @@ -134,7 +134,6 @@ allOf: > required: > - compatible > - reg > - - interrupts > - clocks > - clock-names > - '#address-cells' > -- > 2.25.1 > -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel