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 8FFA0C3DA7F for ; Mon, 5 Aug 2024 19:14:46 +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:Content-Transfer-Encoding: Content-Type:Message-ID:References:In-Reply-To:Subject:Cc:To:From:Date: MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dtk5dG3EnMjfhWRTuibDKCkK/kKGRGj1UhF5G7S1ARA=; b=y9ADPNEec/Kk1u6GMF3jXAOiYr 3yUpBaLweE+mi6ABJWF+OMWdM14Tq3NPbw4SUS1c/sWK0AE6LKF3OYVSTJCdWKwjOInqPsRW52TNw s1ed+RiYmwmBwF7U1VeMzVnbUCL52YSkgpv/sbLOtoxqH0s2ACoo4/69uqRtKyab3DSUNEhFsPxAW T09NLidQvwdG+fuZ7+DwATvCVMpoTbNNUoEXXn+PqieExJUBcZA6IDeigXqxMZlut+0ui9kpCISjD ri9j+Fy10r+AuM/39JVOq9P19f0VCJsVT3cUjmClbz5hxPiAdGGIknOYBfipS7r7V8sQlISMpbSX9 02o53iBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sb3A7-0000000GyQ3-27Zc; Mon, 05 Aug 2024 19:14:31 +0000 Received: from mail.manjaro.org ([116.203.91.91]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sb39a-0000000GyIB-40tp; Mon, 05 Aug 2024 19:14:00 +0000 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manjaro.org; s=2021; t=1722885236; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dtk5dG3EnMjfhWRTuibDKCkK/kKGRGj1UhF5G7S1ARA=; b=VwYd2R8Q579hnEEWI6Tq589C2vlwN4VYNLiC0PcWaImyY2FszadxQtKzN0maGSHTV3JfaN gIjIDVGsZY5QDpPMqRU6uHhduha4T8g03a5cZJJDIlOoZIqYyb7O2XYzdSSZ4lOE/eV9R0 OUnFd3cfGCh/tATD+QHfo1sY2q5H396b7mrGdzNDcfdahJzIXx+q51tTY6B4v4rt4X2Hcq 8hVasH96My11mkUjXPIOIuMForyQZJw38IK2Ohp9yvUDmSUtm35sU2hsFzwwYtxMMZxoeF mCnYUPJA5mpSO3u+UzcDbQupl/raVQbTwClA+29Y5q1U6s0NvkqgIztx35C/JQ== Date: Mon, 05 Aug 2024 21:13:53 +0200 From: Dragan Simic To: Yao Zi Cc: =?UTF-8?Q?Heiko_St=C3=BCbner?= , Krzysztof Kozlowski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Jiri Slaby , Chris Morgan , Jonas Karlman , Tim Lunn , Andy Yan , Muhammed Efe Cetin , Jagan Teki , Ondrej Jirman , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: Re: [PATCH 3/4] arm64: dts: rockchip: Add base DT for rk3528 SoC In-Reply-To: References: <20240803125510.4699-2-ziyao@disroot.org> <82e7e3a78f784b3ad63094c8a0ab1932@manjaro.org> <7941737.iedYuu7f5S@diego> Message-ID: <303a27ab5681e13467f01de9bfe94b45@manjaro.org> X-Sender: dsimic@manjaro.org Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Authentication-Results: ORIGINATING; auth=pass smtp.auth=dsimic@manjaro.org smtp.mailfrom=dsimic@manjaro.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240805_121359_597399_906D129D X-CRM114-Status: GOOD ( 24.98 ) 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 Hello Yao, On 2024-08-05 18:22, Yao Zi wrote: > On Mon, Aug 05, 2024 at 01:47:45PM +0200, Heiko Stübner wrote: >> Am Montag, 5. August 2024, 13:37:11 CEST schrieb Dragan Simic: >> > On 2024-08-05 12:59, Yao Zi wrote: >> > > On Sun, Aug 04, 2024 at 04:05:24PM +0200, Krzysztof Kozlowski wrote: >> > >> On 04/08/2024 15:20, Yao Zi wrote: >> > >> >> >> > >> >>> + compatible = "fixed-clock"; >> > >> >>> + #clock-cells = <0>; >> > >> >>> + clock-frequency = <24000000>; >> > >> >>> + clock-output-names = "xin24m"; >> > >> >>> + }; >> > >> >>> + >> > >> >>> + gic: interrupt-controller@fed01000 { >> > >> >> >> > >> >> Why this all is outside of SoC? >> > >> > >> > >> > Just as Heiko says, device tree for all other Rockchip SoCs don't have >> > >> > a "soc" node. I didn't know why before but just follow the style. >> > >> > >> > >> > If you prefer add a soc node, I am willing to. >> > >> >> > >> Surprising as usually we expect MMIO nodes being part of SoC to be >> > >> under >> > >> soc@, but if that's Rockchip preference then fine. >> > >> >> > > >> > > Okay, then I would leave it as is. >> > > >> > > For the fixed-clock node, I think "xin24m: clock-24m { }" is okay and >> > > follows the new rule? >> > >> > I find "xin24m: clock-xin24m { }" better, because keeping the "xin24m" >> > part in /sys listing(s), for example, can only be helpful. >> >> I would second that :-) . Like on a number of boards we have for >> example >> 125MHz gmac clock generators ... with 2 gmacs, there are 2 of them. >> >> I'm not sure the preferred name accounts for that? >> >> Similarly we also keep the naming in the regulator node, >> it's regulator-vcc3v3-somename {} instead of just regulator-3v3 {}. > > "clock-xin24m" wouldn't be more descriptive than "clock-24m" and there > are usually only a few fixed clocks in dt, thus finding corresponding > definition isn't a problem I think. Well, using "clock-xin24m" comes with another benefit, which is using the same "xin24m" as in the actual clock name. That way, the same clock name gets used in various /sys listings and in the debug clock summary in /sys. Having that kind of consistency can only be beneficial. > For the gmac case, Krzysztof, do you think something like > "clock-125m-gmac1" is acceptable, just like what has been done for > regulators?