From patchwork Sat Nov 7 13:39:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pawe=C5=82_Chmiel?= X-Patchwork-Id: 11888955 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9110117D4 for ; Sat, 7 Nov 2020 13:39:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7220420719 for ; Sat, 7 Nov 2020 13:39:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AhDiTzaq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728130AbgKGNjo (ORCPT ); Sat, 7 Nov 2020 08:39:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727084AbgKGNjn (ORCPT ); Sat, 7 Nov 2020 08:39:43 -0500 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 940E2C0613CF; Sat, 7 Nov 2020 05:39:42 -0800 (PST) Received: by mail-lf1-x136.google.com with SMTP id 126so5846293lfi.8; Sat, 07 Nov 2020 05:39:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=lAR/h1wV/mVrmRlM3JEvsi3/vv0tMjOOYCctIjXs1fA=; b=AhDiTzaqcIBZB/kD/hlamzvzQ/LFTFLzK2Ti4G+IBZg9/+yDi5Mw2INNbxyzhei+lu G0EvTSygiRODFHWPQJW70UBEGeCEGtL7TOXZR85U6Sl65Pc/wZmfY2Gs/iOsbyZ9toOg 26gI68BDpXhyRpQMGhGLDbOmvAJgFk76xSeRhYTq4zn2FPR1lH8lGm4tbIjNoBrDmGZN nBdkXRqVyK9qa73nHLG8TPyaoeT4isYOR1iT6cQnJXzUPGpz8EytJH+zgtgH6E6vlXCR UjXKSLU/vFpGAmi46NVNjgH2Sn5kyi0do8wkLWim659Op9OS3hIJYOXUdQaU/TY3lSH5 1DrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=lAR/h1wV/mVrmRlM3JEvsi3/vv0tMjOOYCctIjXs1fA=; b=fOn8M6iIvLFKLGVGYn660Kdr+GsrQnp0iZLA7XEpOpMxFI0FXxA+bwNKYDlCyBKZ9T 0MEsOTmW7Pt8WPXBiJNKvVGGsJa3awK4JNyoeKuWx7Bs0nhD6hJDKDbfY/dmn3YBpxJl 0M9a7krsnIdjySElzOfsHamqLoOmoHHXreAN8EnpdeJ9RYuzg4WaaY8qcR8GpFXAUXwi ezXrxlRjYq+yuLw/yEVstzLSwuK6sKjrNUUdPIhTFuVDYDPLwpIR+TDoRnPZBTPCVeqB aZJ79XAHbBYK5of/jEuSVujEtu8fY7CZJ6+mGJGTACMXPgJ7rR+VrLVMtASMkovKXXsm nUyg== X-Gm-Message-State: AOAM5304d96C0Vy3j699ArS1QAsd3rtYAvjH06zPR61wTRP+YLB6Iksc 3pmGn7VE4WlELJkciQSDD/E= X-Google-Smtp-Source: ABdhPJxGEb/igDJY7FFYn1Atx88+hv86yhzhEjECh4F4QIcwxm/ZUYV/HiIyeNiwwYfb9+TtVWFh0w== X-Received: by 2002:ac2:533b:: with SMTP id f27mr2495942lfh.57.1604756381108; Sat, 07 Nov 2020 05:39:41 -0800 (PST) Received: from localhost.localdomain ([2a02:a315:5445:5300:d646:fcbb:9c5e:1da1]) by smtp.googlemail.com with ESMTPSA id y27sm524189ljm.74.2020.11.07.05.39.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Nov 2020 05:39:40 -0800 (PST) From: =?utf-8?q?Pawe=C5=82_Chmiel?= To: kgene@kernel.org, krzk@kernel.org, alim.akhtar@samsung.com Cc: robh+dt@kernel.org, a.kesavan@samsung.com, naveenkrishna.ch@gmail.com, thomas.ab@samsung.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Pawe=C5=82_Chmiel?= Subject: [PATCH v2 2/2] arm64: dts: exynos: Correct psci compatible used on Exynos7 Date: Sat, 7 Nov 2020 14:39:26 +0100 Message-Id: <20201107133926.37187-2-pawel.mikolaj.chmiel@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201107133926.37187-1-pawel.mikolaj.chmiel@gmail.com> References: <20201107133926.37187-1-pawel.mikolaj.chmiel@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org 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 --- Changes from v1: - Split into two separate patches. --- 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 723f5d5fcf00..fff383206545 100644 --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi @@ -117,8 +117,10 @@ cpu_atlas3: cpu@3 { }; psci { - compatible = "arm,psci-0.2"; + compatible = "arm,psci"; method = "smc"; + cpu_off = <0x84000002>; + cpu_on = <0xC4000003>; }; soc: soc@0 {