From patchwork Wed Mar 1 09:55:05 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: 13155730 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 88617C7EE30 for ; Wed, 1 Mar 2023 09:55:49 +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=AwzYgY//LGcWZQNi758UN/hidxcHlf+1mU/Su45QGhQ=; b=BsbcKTM5RKzC+GegB9/v1BeS/p ciQlADUqaXzjd+inx+ZvDdCPHQK+B0KGdEWnOF2jsAfrOkhVDNNSdt/nSLNvg1ihf1dbBlDKmM3M6 aFMbq6t1Rn2po7Yrk4v9uBk6Z2K88HWPPvZLZNBRE1uuKp1LTeiIr+MRavNkghh8YN7KZbHpcv5b7 0QGAPH0FWL3WlblTkCksU7XfrKgu/qSZcsGR4eRFez2+bKiE1WrbnEY1EmltjeOch82CWhNtM5zog 5/lV96LwqwfvKXmrbAjs2XYyJkXZqSYflwivIjUMN7V2lpoZjYci+Q1z1oVuNeOPqq5UEaC4TKwSI B+lJoGOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXJBX-00FdSV-8e; Wed, 01 Mar 2023 09:55:43 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXJBL-00FdK0-7P; Wed, 01 Mar 2023 09:55:32 +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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230301_015531_521128_DA9560F0 X-CRM114-Status: UNSURE ( 9.83 ) 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 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/boot/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 { &gpu { mali-supply = <&mt6358_vgpu_reg>; - sram-supply = <&mt6358_vsram_gpu_reg>; }; &i2c0 { @@ -401,6 +400,11 @@ &mt6358codec { Avdd-supply = <&mt6358_vaud28_reg>; }; +&mt6358_vgpu_reg { + regulator-coupled-with = <&mt6358_vsram_gpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + &mt6358_vsim1_reg { regulator-min-microvolt = <2700000>; regulator-max-microvolt = <2700000>; @@ -411,6 +415,11 @@ &mt6358_vsim2_reg { regulator-max-microvolt = <2700000>; }; +&mt6358_vsram_gpu_reg { + regulator-coupled-with = <&mt6358_vgpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + &pio { aud_pins_default: audiopins { pins_bus {