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: 13150455 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C907C61DA4 for ; Thu, 23 Feb 2023 13:55:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VO92luxRYsdQFdFK/Lge50FPdfOEd7N62jCQXQjhQ9k=; b=AR/CgJs+CimkdRANU5S8NVaI5I APVhaHP5kvl0xnLSnz/PF5N7mj5bPhoO0eniH1LDAtyRMtCwOlutLLp/cE5QnV/FR/f3SCwARU8PP cuVGWpdV/Ky8kfwz0u1OMPZ/bPfEcfVeRJmtHQZNwmlfwHzM6NxTL7HRDQqcA2o5KeR3ANeVCObPp qOuOxLTNur5Ceyx+tOZ3h2hI7QvmdSB3D/0C2kBpvajCeQtVLK0ewnx5AfyyYklDaGIqoM+6pUU1F BaypT/wAS7Xqqd7n868nuLfd8Nn4VpXdeSLOhNcrDCKuWxfddKDANSkAAYvuT/b4jLSNuQz5h8i1Y A7sqqiXw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pVC4Y-00Get9-Cc; Thu, 23 Feb 2023 13:55:46 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pVBtN-00GYUD-0u; Thu, 23 Feb 2023 13:44:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=VO92luxRYsdQFdFK/Lge50FPdfOEd7N62jCQXQjhQ9k=; b=GsedLHne+yquTxEq2s0qs7V5RJ q8fDrYH3f5KS/LGarzzskIe6BH+l+AcM2t/Qu9blGcW602AOLTCD0+HHGwY8ulwOtOSJB5yA7fuXW KnHdeBAJ/zYYj7v3HiGxGHtMB/N54gO9DU5Vm1s11IxqYxtOpsM/cvxIYQ76NXRg8wRuZH63wQMfn uJfU86CakjGsk165rpiazD0vlf1u347fLGb0Q0j/F48bG0pk1XnIYT0TNeEhj/51l9DVC3AMUNmWn IiWLH4J9iOoxqMcsYMwUSWsib30QxOvQq1wmhGPxKMJVXk0tNY/rVnGZ6O6MagZC/S+u1zj+QudQM 6Dq985Yw==; Received: from madras.collabora.co.uk ([46.235.227.172]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pVBtG-00Cw3X-1F; Thu, 23 Feb 2023 13:44:11 +0000 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230223_134408_134232_4AF21FBA X-CRM114-Status: UNSURE ( 7.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org 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>; }; }; };