From patchwork Wed Mar 1 09:55:08 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: 13155733 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 2AEB9C64ED6 for ; Wed, 1 Mar 2023 09:56:24 +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=RWg/EdVW8Yuj+rsxEgajt+GyBL3AvWUiqv9uyaF7DyQ=; b=abxNTHdMY7tlYRxTTHKDRTKdB8 pOh2KuEegPb8YWQVPkJ0yRKkuU6VfhAB+CvoyUVwcKF+2Tvn41Ivk7Me9Z611WCN1z9X69Pr1O7XF IgVbI8PvX8j45zz084vm2bQeMjMsunOAsCxjUzAbLxCNJBPS1Cd/q/IqRvQSj1Js8P5K5n7XfzVn+ pxwq3Tz0WyuAutiQq1dRHdDXQ8wBFWhipDyJDmeTR1+crovThw1pqM2IUp+pcpB0mtZA2Z/za7nVC VQ5kY42+N1JHGdawWj8rZ0DfcgsVZM8M2Te1AJxDpgHVwh7HKXDiLl+GUGWhelt/Y7S4YfrQUDUy7 Qvv4VIWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXJC5-00Fdkh-Fy; Wed, 01 Mar 2023 09:56:17 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXJBN-00FdKR-01; Wed, 01 Mar 2023 09:55:34 +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 4CEDD6602126; Wed, 1 Mar 2023 09:55:31 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677664531; bh=68pAuhR2AwbWVXI3OvP5qkhYBgJxnDaV6L7C5W0OdA8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U1HDW/xGfyw5NrMrPFCU/v9jyz8pC0fuA9PeRsZ5TFG0+qFsW5D6upIxRYwPsMFqM gTl4RmQ/oxW45ILWFsgzUZMSx5qakJoGVo1g9YN4bECROPHNFvrPMm03u29ayUtY1/ +dA43RxktVhEFfeCINFMnHmGPsIhVs2kWjRX7HXlHTXZs/HcjanVmrovgHj1MmKHB9 AMcXrmFtHVi2/qlAExpp0DiCSU4gY18atchb+tdfdnK52YvdY5FoQzmoQhTqqtKkRo voW63sMbjs5yMG4uoyGYm4iyxoaFfytZwoTKYo63Uv0FkXb57ytFTgBLZ7uOuCkKWO ueFcDgCgM6BcA== 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 04/19] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators Date: Wed, 1 Mar 2023 10:55:08 +0100 Message-Id: <20230301095523.428461-5-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_015533_214332_CD121248 X-CRM114-Status: UNSURE ( 9.80 ) 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-pumpkin.dts | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts index a1d01639df30..c228f04d086b 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts +++ b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts @@ -71,7 +71,6 @@ &auxadc { &gpu { mali-supply = <&mt6358_vgpu_reg>; - sram-supply = <&mt6358_vsram_gpu_reg>; }; &i2c0 { @@ -176,6 +175,16 @@ &mmc1 { non-removable; }; +&mt6358_vgpu_reg { + regulator-coupled-with = <&mt6358_vsram_gpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + +&mt6358_vsram_gpu_reg { + regulator-coupled-with = <&mt6358_vgpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + &pio { i2c_pins_0: i2c0 { pins_i2c{