From nobody Sat Sep 21 04:38:00 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 69BAEC64ED6 for ; Tue, 28 Feb 2023 10:47:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230422AbjB1Kr4 (ORCPT ); Tue, 28 Feb 2023 05:47:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230123AbjB1Krx (ORCPT ); Tue, 28 Feb 2023 05:47:53 -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 5BC8F19B5; Tue, 28 Feb 2023 02:47:51 -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 9E5BF6602FD6; Tue, 28 Feb 2023 10:47:49 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677581270; bh=L6kGyfCrTlPJ9U3bVTbj8GIaJJMOf4x1aJLiGYToiq8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hru/Bhv6rkdi/pc5OZ/qgVOJYCvL/DkC6PZj7ceZTdEjgCyE6H6s7dHsRschIiVYX 4MYHmN7rFlYH6xZbfkp2sWqUNiU3YUqf0aoJ5r1U7saLJSs2iGQXNQlWuPr6GHxLY7 f7SUMmKncl5NMZVddOlcvGl94nl9Qd3z00SVIOIXOgItFeaRH8DZKWI7oYa9FtWM+X Y5+CNmrE2NwTMRfJsdJqpOfu0tsUJadp2ydRVl6hMymInhZxfCf1M/sqYhgiLmmWKM tL9Lj8gZ6EhBGEL3q6B/cv+a4JNQYPFqfDpPVpAJ++Jnk57knUCMbzhr1XRVrrfcEJ Sn9zOvy19vnbQ== 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 01/18] arm64: dts: mediatek: mt8183-kukui: Couple VGPU and VSRAM_GPU regulators Date: Tue, 28 Feb 2023 11:47:24 +0100 Message-Id: <20230228104741.717819-2-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 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