From nobody Thu Nov 14 18:02:44 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 4629EC7EE36 for ; Wed, 1 Mar 2023 09:55:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229895AbjCAJzj (ORCPT ); Wed, 1 Mar 2023 04:55:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229861AbjCAJzf (ORCPT ); Wed, 1 Mar 2023 04:55:35 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 01C1D35243; Wed, 1 Mar 2023 01:55:30 -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 3ED4166020E6; Wed, 1 Mar 2023 09:55:29 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677664529; bh=L6kGyfCrTlPJ9U3bVTbj8GIaJJMOf4x1aJLiGYToiq8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eW99pR/vA4O7k7G4KkUJeTWCnY9hsn6relGj8RSw22V3Yiphv7T7bj2crtdA/NLne 4vXHLbhPyb+76dA5+PtCPhoyOhZDC5VD6e4FOKW+LDH+pEda8OSzF7Igo05iNVVupr WjH4XiKEakpOFqQsVdUMyJUTT0FgiPig0BqNN2/EN/8LGlfKG/8pK0IvyOknXj8H1b TgjaVl8RxIbw5Y+cqbdfjUzWov7kjCPkkaI1Vg7ul1NAf1UyOywj1XWnAmdzVIwXZY sJa8i93kkcJc0jQh6AkiDU4dWWmkeAyxm7pI5Bvt9Q/Q5cDFf6ID9tlnCsRW7siR7w SxawEniUqxEIg== 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 v4 01/19] arm64: dts: mediatek: mt8183-kukui: Couple VGPU and VSRAM_GPU regulators Date: Wed, 1 Mar 2023 10:55:05 +0100 Message-Id: <20230301095523.428461-2-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230301095523.428461-1-angelogioacchino.delregno@collabora.com> References: <20230301095523.428461-1-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 they have a strict voltage output relation to satisfy in order to ensure GPU stable operation. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Chen-Yu Tsai --- arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/bo= ot/dts/mediatek/mt8183-kukui.dtsi index fbe14b13051a..de9778c85b94 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi @@ -294,7 +294,6 @@ dsi_out: endpoint { =20 &gpu { mali-supply =3D <&mt6358_vgpu_reg>; - sram-supply =3D <&mt6358_vsram_gpu_reg>; }; =20 &i2c0 { @@ -401,6 +400,11 @@ &mt6358codec { Avdd-supply =3D <&mt6358_vaud28_reg>; }; =20 +&mt6358_vgpu_reg { + regulator-coupled-with =3D <&mt6358_vsram_gpu_reg>; + regulator-coupled-max-spread =3D <100000>; +}; + &mt6358_vsim1_reg { regulator-min-microvolt =3D <2700000>; regulator-max-microvolt =3D <2700000>; @@ -411,6 +415,11 @@ &mt6358_vsim2_reg { regulator-max-microvolt =3D <2700000>; }; =20 +&mt6358_vsram_gpu_reg { + regulator-coupled-with =3D <&mt6358_vgpu_reg>; + regulator-coupled-max-spread =3D <100000>; +}; + &pio { aud_pins_default: audiopins { pins_bus { --=20 2.39.2