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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A198C6FA8E for ; Thu, 2 Mar 2023 10:00:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229790AbjCBJ7O (ORCPT ); Thu, 2 Mar 2023 04:59:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230369AbjCBJ6j (ORCPT ); Thu, 2 Mar 2023 04:58:39 -0500 Received: from mail-vs1-xe35.google.com (mail-vs1-xe35.google.com [IPv6:2607:f8b0:4864:20::e35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17AEB457D6 for ; Thu, 2 Mar 2023 01:57:43 -0800 (PST) Received: by mail-vs1-xe35.google.com with SMTP id s1so21867769vsk.5 for ; Thu, 02 Mar 2023 01:57:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=TNvXBJNqCTvELcy4YMMxwKgPnzjCMx8BCNeCIplpo2I=; b=E/ly+MLKc12YJLj8/whHeGltaMLioTu4A9rrMOSx2yfju2dXB4gVtWy6hnlYvigYvk J9Ih9OWxFAxd+I76s6PbiZZb/yRdGxrRNWeVRvOJ44GkYiOB+is0KzQTwxHQFxwDEVgV XSBJWV8CTppA8bxGMmTLgmOo61irg96ItDfwA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TNvXBJNqCTvELcy4YMMxwKgPnzjCMx8BCNeCIplpo2I=; b=0+7NK+DLre9T3u3VWRb6zE1wraJziciSmLu4gzhbmCwWyki9YES3+wmxIABNI8bxFJ 1gcgTcCKINcNxlpEGGVdgq5xyl94VzgrYvGtHwvsnShCrzyrTxtlmCA/RNTjVeUL9Dx+ pf80AeDzqwJGHfwGMDBxnHqg8nVamSvvKPqbiL00SPtv4d1NwVCCc4bYyf57b8zrGLrq gRySgY1JFhKhHrmVEQSu2om52zEwAty2GPtUMqBeRMK7NxI6sOzf2XKfQM0Nnu3mTwAG 0JHeZ211do+yPDz8L0GC/E/Su8a/M6P2t789xXnjKKw6leYuE+mnvTEM1tDlXEZzpO/4 rT8Q== X-Gm-Message-State: AO0yUKVgNgLj94NtDhJu5zEBnDn+t9y9VtDsxd/iNx+0V/3xT+o/gxuQ iPfAEt/a1SJ7cwm+xUrr2wfSG9wkDhiF0TooqlJR1A== X-Google-Smtp-Source: AK7set8bzekPc2ZdrNfn/PLNuJzt+V+Gr/Fkoao4RegP4L/RomYjhOWNObP7CaLKGTA2+SK/R+9P1cd4Sm5pxuCGZ+A= X-Received: by 2002:a05:6102:419f:b0:412:d91:5ef5 with SMTP id cd31-20020a056102419f00b004120d915ef5mr1373330vsb.0.1677751062099; Thu, 02 Mar 2023 01:57:42 -0800 (PST) MIME-Version: 1.0 References: <20230301095523.428461-1-angelogioacchino.delregno@collabora.com> <20230301095523.428461-12-angelogioacchino.delregno@collabora.com> In-Reply-To: <20230301095523.428461-12-angelogioacchino.delregno@collabora.com> From: Chen-Yu Tsai Date: Thu, 2 Mar 2023 17:57:31 +0800 Message-ID: Subject: Re: [PATCH v4 11/19] arm64: dts: mediatek: mt8192-asurada: Fix voltage constraint for Vgpu To: AngeloGioacchino Del Regno Cc: matthias.bgg@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 1, 2023 at 5:55=E2=80=AFPM AngeloGioacchino Del Regno wrote: > > The MT8192 SoC specifies a maximum voltage for the GPU's digital supply > of 0.88V and the GPU OPPs are declaring a maximum voltage of 0.80V. > > In order to keep the GPU voltage in the safe range, change the maximum > voltage for mt6315@7's vbuck1 to 0.80V as sending, for any mistake, > 1.193V would be catastrophic. > > Fixes: 3183cb62b033 ("arm64: dts: mediatek: asurada: Add SPMI regulators"= ) > Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Chen-yu Tsai