From patchwork Thu Feb 23 13:43:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 60991 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:5915:0:0:0:0:0 with SMTP id v21csp319293wrd; Thu, 23 Feb 2023 05:46:20 -0800 (PST) X-Google-Smtp-Source: AK7set8NAk8Y40qMquu+nNK1NlPtTGYo7mWQo7DfzYACibNogtP81L0r55Ymg0IG+sx0uvlhwADY X-Received: by 2002:a17:906:256:b0:882:bffc:f2d2 with SMTP id 22-20020a170906025600b00882bffcf2d2mr20858621ejl.2.1677159980311; Thu, 23 Feb 2023 05:46:20 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1677159980; cv=none; d=google.com; s=arc-20160816; b=pItnMjlp5uREgN3lN9mJ5SZMFDoM8J3WJebFWctYLmyOvJzoDbtEAUsXcrK0/e1heB Ost2VpNSkA9yWIQvvseJ+F/hcQOy30/keO5VmV6PGV3xwayYbodvlLCBSR/kQdY5mHty BhQ/AoUBO1l37nCla+vq7/Ms+piwDywRjHTZbTe+UBzWRgo0Nu/tUPaHQ7a/0OE6xjj8 QBMAELACk8ewleTNzqBEkFeRA/8GUsKaEq/OaYZpZPNu38rSg9GifvTehYORdiCi5mjb sGun18G1OVx5QbI7PZiIReMs8utxZXI+BIYRmVUjyJF430lpmgrK7oGFfu4lAXtQScnD FsEw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=VO92luxRYsdQFdFK/Lge50FPdfOEd7N62jCQXQjhQ9k=; b=Fvu6o1wgct3xjSWlkxE1vxpmrNmVA+PxWh8l1E9A6q/9aFCYFb+uxeBIwv82oKeACc F3piHS37ivYdK3XQlNxOhtCZGuN+kZD/lS9hQcE0AgccfxzftD96UhwqjVceFNn7OIPl +MOlpzcnBX6BV6TG6QLAhog/GWqlqhg/TTvWIeX/qtK3XsM5LOT41rMtWF0SPp1M3zDL 6qC+8CwGPJsOoklUzKe3PfeDqL2W6oG9zNL7UaAEsaJcmq6cwh3UrlCJjcJDwRFv4rJO 5SR4W+hdf7l12QhUNzAYvM1HAXhMZQ0Z6im6M3xAPOKgwIeKVmqsrEZsfgiRu9bSb2HT baIA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@collabora.com header.s=mail header.b=Kna8qoUB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=collabora.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id gj19-20020a170907741300b008b84c44d603si17681169ejc.388.2023.02.23.05.45.56; Thu, 23 Feb 2023 05:46:20 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@collabora.com header.s=mail header.b=Kna8qoUB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=collabora.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234707AbjBWNoj (ORCPT + 99 others); Thu, 23 Feb 2023 08:44:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234400AbjBWNoG (ORCPT ); Thu, 23 Feb 2023 08:44:06 -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 329AF4DBE8; Thu, 23 Feb 2023 05:44:04 -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 967326602209; Thu, 23 Feb 2023 13:44:02 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677159843; bh=PvHOALPrQriFUXthOsepKaTpX4xTyaYloZRmD2xgt7w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Kna8qoUB6U2pjst9ZLbcVaE/DNh/Nuhish3Gsux2GGBZHkAp3KgzpMrRKqaAsPnQW NwXPWsnTUJiITgfbfI4ybtVgZglJI8VFy51g4ASOnxccfdwac/jMPlFmeYbfOlf95b g/j0eGNYFepmQHZ6btYMimlbAEOeK01GOIgSvSTkzivjKFIlb8DCuvzxcqSEtrBmdo boU7aEmx6BY/XlLkAd4jacUiF0U0gajIA+Bbpjdp6meLdZXVgBggYPkTKBtzmXC6va HEEFWTDuAf3SVWaXX1sJWrYylUe7cHNl5jRCGuAy4zbboKcWwhjqxYLMI/PAYMSTQY UQF0tTV63rOXw== 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 v2 11/16] arm64: dts: mediatek: mt8192-asurada: Couple VGPU and VSRAM_OTHER regulators Date: Thu, 23 Feb 2023 14:43:40 +0100 Message-Id: <20230223134345.82625-12-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230223134345.82625-1-angelogioacchino.delregno@collabora.com> References: <20230223134345.82625-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1758629703565472721?= X-GMAIL-MSGID: =?utf-8?q?1758629703565472721?= 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; }; +&mt6359_vsram_others_ldo_reg { + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <850000>; + regulator-coupled-with = <&mt6315_7_vbuck1>; + regulator-coupled-max-spread = <10000>; +}; + &mt6359_vufs_ldo_reg { regulator-always-on; }; @@ -1411,6 +1418,8 @@ mt6315_7_vbuck1: vbuck1 { regulator-max-microvolt = <1193750>; regulator-enable-ramp-delay = <256>; regulator-allowed-modes = <0 1 2>; + regulator-coupled-with = <&mt6359_vsram_others_ldo_reg>; + regulator-coupled-max-spread = <10000>; }; }; };