From nobody Sat Sep 21 07:47:01 2024 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 26876C636D3 for ; Wed, 8 Feb 2023 10:46:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231365AbjBHKqh (ORCPT ); Wed, 8 Feb 2023 05:46:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230075AbjBHKqL (ORCPT ); Wed, 8 Feb 2023 05:46:11 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7883D47EFC; Wed, 8 Feb 2023 02:45:58 -0800 (PST) Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id E9A4566020A2; Wed, 8 Feb 2023 10:45:42 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1675853143; bh=iOLDoRtCa+fRE160zIHQzs9EtumGO/iTit/r4VP3orI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DUwMsMKeBnkAav17FUHf070DjbWbUvnbQK2zXeB0quAirxgyhrCXfNhnJA2+nlWou RCH1vRgz5w7TkmrXdvEURpgCpXVqYakGDBXNa5TtQ7J356A0xVBy7p4GQNhlbqBNTB MvlFmJmq9oOgD4t0z15WzEtLyv4WymzHHUH8nLgYFFmFbn7yp9d/Oi6y/RAEhtI3JC v4G+u3U++yCdDiUrFFe2q6p3HJ75dvK2rh76EoeEjxj61kSDplAAF89PdP24jVQ0b0 O0cINeO2e8Oj8DGFAYcxgEQEK/2zo5utojprbwHQy3ThzJ57a/O0K1jxZRUgAz53K9 hMb/Y+K7+uBxA== From: AngeloGioacchino Del Regno To: matthias.bgg@gmail.com Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, angelogioacchino.delregno@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, wenst@chromium.org Subject: [PATCH 11/16] arm64: dts: mediatek: mt8192-asurada: Couple VGPU and VSRAM_OTHER regulators Date: Wed, 8 Feb 2023 11:45:22 +0100 Message-Id: <20230208104527.118929-12-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230208104527.118929-1-angelogioacchino.delregno@collabora.com> References: <20230208104527.118929-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add coupling for these regulators, as VSRAM_OTHER is used to power the GPU SRAM, and they have a strict voltage output relation to satisfy in order to ensure GPU stable operation. Signed-off-by: AngeloGioacchino Del Regno --- arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/= boot/dts/mediatek/mt8192-asurada.dtsi index df477eb89f21..c8b6e1a9605b 100644 --- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi @@ -447,6 +447,13 @@ &mt6359_vrf12_ldo_reg { regulator-always-on; }; =20 +&mt6359_vsram_others_ldo_reg { + regulator-min-microvolt =3D <750000>; + regulator-max-microvolt =3D <850000>; + regulator-coupled-with =3D <&mt6315_7_vbuck1>; + regulator-coupled-max-spread =3D <10000>; +}; + &mt6359_vufs_ldo_reg { regulator-always-on; }; @@ -1411,6 +1418,8 @@ mt6315_7_vbuck1: vbuck1 { regulator-max-microvolt =3D <1193750>; regulator-enable-ramp-delay =3D <256>; regulator-allowed-modes =3D <0 1 2>; + regulator-coupled-with =3D <&mt6359_vsram_others_ldo_reg>; + regulator-coupled-max-spread =3D <10000>; }; }; }; --=20 2.39.1