From nobody Thu Nov 14 17:44:54 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 937D2C64EC7 for ; Wed, 1 Mar 2023 09:55:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229715AbjCAJzs (ORCPT ); Wed, 1 Mar 2023 04:55:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229534AbjCAJzg (ORCPT ); Wed, 1 Mar 2023 04:55:36 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96CC91C599; Wed, 1 Mar 2023 01:55:35 -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 005876602129; 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=1677664532; bh=Ua7BwziPqVhfWLXLBzmILApbAUpa3Hpx/UhYQnsGNBU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NFQfYgKmh/wAZEKNGxC8nLtuK2x3mXJaEZNe3LXZeNA+pyYRgjxz7TXDbqb8mDzHh F32yXiXlRUIacfbgzJ+BLcb0CBnFkSNJBavd6zUhLsUI0ucTwr6PUY5AmNvH0/OXL+ +CEuZET5PQJLwGyFV/T+nEZlj7f14XjA0SZ2TrFiPGQl9dHllRAJcOxWMBFrkGOt5H qec7MiXa/qYy4uo1lLvtpGZemKuMDSghuRr5/ux5JLwRGuwUjJMyxVQXq4HHjemDnB D8XPHzo9b1Xo27I/BeL5W4lPvpr3XUPrTGJb+AGmITHSmM1vF4RxhibCWzENOStbdP tluhzhuX6ctGQ== 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 05/19] arm64: dts: mediatek: mt8183-evb: Couple VGPU and VSRAM_GPU regulators Date: Wed, 1 Mar 2023 10:55:09 +0100 Message-Id: <20230301095523.428461-6-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-evb.dts | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/= dts/mediatek/mt8183-evb.dts index 52dc4a50e34d..fd327437e932 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts @@ -52,7 +52,6 @@ &auxadc { =20 &gpu { mali-supply =3D <&mt6358_vgpu_reg>; - sram-supply =3D <&mt6358_vsram_gpu_reg>; }; =20 &i2c0 { @@ -138,6 +137,16 @@ &mmc1 { non-removable; }; =20 +&mt6358_vgpu_reg { + regulator-coupled-with =3D <&mt6358_vsram_gpu_reg>; + regulator-coupled-max-spread =3D <100000>; +}; + +&mt6358_vsram_gpu_reg { + regulator-coupled-with =3D <&mt6358_vgpu_reg>; + regulator-coupled-max-spread =3D <100000>; +}; + &pio { i2c_pins_0: i2c0{ pins_i2c{ --=20 2.39.2