From nobody Thu Nov 14 06:57:01 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 CE418C64EC7 for ; Tue, 28 Feb 2023 10:48:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231317AbjB1Ks3 (ORCPT ); Tue, 28 Feb 2023 05:48:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231181AbjB1KsO (ORCPT ); Tue, 28 Feb 2023 05:48:14 -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 07563769A; Tue, 28 Feb 2023 02:47:57 -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 141D16602FDA; Tue, 28 Feb 2023 10:47:56 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677581276; bh=VIfsardJ+9N5gfD68eWHLQAfgPXFsPsNOQTEezXqqYc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eDNm0LLCVYLdi20WIoODyMKMVC8P5uQS2p5Qq97qO2zAHV0ibUPx5RkZf217/B6HT YNaBX3d/fmf1/ozomdQdlCY+gCjJQ27LOO3yElthsZAG1GZKO8Uwl81ywVL62MKWpc qNE2PN7EJ/0QHu968Oe44E4LcH/imaprFBoPeHbMiKcAJFI2Zntw8ahIFUq781sYJE V1kbO6LRhave0fc3ySnfaSXgmrTw/sE3nc6weSJHeDwqLhrsFVlmeZcM7VNOnub5og Z922lNkLrWn8fVCIyqwjZyxYF1AyhPOx5JQxthHqlKAySNCKvK48INWrtOoNI5xctj TV/uQQSB/aNlA== 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 v3 11/18] arm64: dts: mediatek: mt8192-asurada: Couple VGPU and VSRAM_OTHER regulators Date: Tue, 28 Feb 2023 11:47:34 +0100 Message-Id: <20230228104741.717819-12-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230228104741.717819-1-angelogioacchino.delregno@collabora.com> References: <20230228104741.717819-1-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. While at it, also add voltage constraint overrides for the GPU SRAM regulator "mt6359_vsram_others", but don't touch mt6315's vbuck1 as its constraints are fine. 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 2.39.2