From patchwork Mon Dec 28 12:41:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 353358 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32160C43142 for ; Mon, 28 Dec 2020 15:22:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0914D22475 for ; Mon, 28 Dec 2020 15:22:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436841AbgL1OCY (ORCPT ); Mon, 28 Dec 2020 09:02:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:35908 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729403AbgL1OCX (ORCPT ); Mon, 28 Dec 2020 09:02:23 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 242A320715; Mon, 28 Dec 2020 14:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609164127; bh=7IDpwvkh2/CeIX75Mr6xcB2w18dVth07cTES6nGsdmM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ryCv65aCjtObEGNvAWogyoNtKPGLNuwRhrXtusO8dtXAMMMt+gVAxThSjV8jxUj2F 5HPatGqsHVFv7pO5z7+hQ7VaM7LIoSYlntYo475L7QcfyR7rbeBBkAZOekSj/1Llrb KbgQ2kxTUSWujt2vADvl+UOcZpNeXZST5ZfG5C/0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?utf-8?q?Pawe=C5=82_Chmiel?= , Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 5.10 070/717] arm64: dts: exynos: Correct psci compatible used on Exynos7 Date: Mon, 28 Dec 2020 13:41:08 +0100 Message-Id: <20201228125024.344449748@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228125020.963311703@linuxfoundation.org> References: <20201228125020.963311703@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Paweł Chmiel [ Upstream commit e1e47fbca668507a81bb388fcae044b89d112ecc ] It's not possible to reboot or poweroff Exynos7420 using PSCI. Instead we need to use syscon reboot/poweroff drivers, like it's done for other Exynos SoCs. This was confirmed by checking vendor source and testing it on Samsung Galaxy S6 device based on this SoC. To be able to use custom restart/poweroff handlers instead of PSCI functions, we need to correct psci compatible. This also requires us to provide function ids for CPU_ON and CPU_OFF. Fixes: fb026cb65247 ("arm64: dts: Add reboot node for exynos7") Fixes: b9024cbc937d ("arm64: dts: Add initial device tree support for exynos7") Signed-off-by: Paweł Chmiel Link: https://lore.kernel.org/r/20201107133926.37187-2-pawel.mikolaj.chmiel@gmail.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/exynos/exynos7.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi index 545e67901938a..7599e1a00ff51 100644 --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi @@ -79,8 +79,10 @@ }; psci { - compatible = "arm,psci-0.2"; + compatible = "arm,psci"; method = "smc"; + cpu_off = <0x84000002>; + cpu_on = <0xC4000003>; }; soc: soc@0 {