From patchwork Tue Feb 18 18:26:43 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ahmad Fatoum X-Patchwork-Id: 13980487 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 E6C5EC021AF for ; Tue, 18 Feb 2025 18:33:05 +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:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UVDeO5APEsQZzhVQ1M0xMzbJWE1HXOlbdXixFNuMeLg=; b=HLgMj4nTOd/m4WZOb51g9uK6PZ 7Ggy44rVj2TcqH7x4fqb80Ny2iiDXL7e8vSrTUKLcENfiGBG5dlKFoRXDk8Xoqwgr9e8b7rywRn1s kGGC/1CqUGLKP5IOCeQWlfT4wkU3pziFSqC9nqnLmf4w3uFjb5ppTLP6zaH8kSAVQJPOGOVgdrEkX T3AsbyptuENlcrIkqqM0mGdklzO5f0oIxU1n8C7UHTk233DOu0lGVxCGBKDGtDbKdVsdLpOnL5RT9 JYSXXLUousj2jnPwyyr2dmZMcLOFE13OaLXuYsneYwDzxBReVg9OKKpirlkqOvHTEHK1JnYfKgCIH ezAG3jCA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tkSOu-00000009MvC-2B7U; Tue, 18 Feb 2025 18:32:56 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tkSJH-00000009LVI-2WFP for linux-arm-kernel@lists.infradead.org; Tue, 18 Feb 2025 18:27:08 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tkSIy-0006Bg-0x; Tue, 18 Feb 2025 19:26:48 +0100 Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tkSIx-001dVC-1Z; Tue, 18 Feb 2025 19:26:47 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1tkSIx-00A9Hm-1D; Tue, 18 Feb 2025 19:26:47 +0100 From: Ahmad Fatoum Date: Tue, 18 Feb 2025 19:26:43 +0100 Subject: [PATCH v4 3/6] arm64: dts: imx8mp: add fsl,nominal-mode property into nominal.dtsi MIME-Version: 1.0 Message-Id: <20250218-imx8m-clk-v4-3-b7697dc2dcd0@pengutronix.de> References: <20250218-imx8m-clk-v4-0-b7697dc2dcd0@pengutronix.de> In-Reply-To: <20250218-imx8m-clk-v4-0-b7697dc2dcd0@pengutronix.de> To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Frank Li , Pengutronix Kernel Team , Fabio Estevam , Abel Vesa , Marek Vasut Cc: linux-clk@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ahmad Fatoum X-Mailer: b4 0.14.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: a.fatoum@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250218_102707_641256_6AC93FA0 X-CRM114-Status: GOOD ( 10.26 ) 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 The imx8mp-nominal.dtsi is meant to be included into boards that want to override the default overdrive clock settings with settings suitable for running in nominal drive mode at its lower required voltage. Specifying fsl,operating-mode = "nominal" informs drivers of this fact, so they can sanity check runtime clock reconfiguration to observe the limits imposed by nominal mode. Signed-off-by: Ahmad Fatoum Reviewed-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx8mp-nominal.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-nominal.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-nominal.dtsi index f9a82a663033a1dfb72163eebb62e4aee66cee2f..a1b75c9068b288a2fba73bbd96b1519a50df85a3 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-nominal.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-nominal.dtsi @@ -21,6 +21,7 @@ &clk { <800000000>, <600000000>, <400000000>; + fsl,operating-mode = "nominal"; }; &pgc_hdmimix {