From patchwork Tue Feb 28 10:47:27 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: 13154686 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 85233C7EE31 for ; Tue, 28 Feb 2023 10:49:07 +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=2+ffK6k3wuxRJkjIkwzv9FZHaR6LLvsyi/OIXg5VlQo=; b=4bn/BKEQ2uVkLsZIpb09JJgRNw wA9WzP7hIMSvHYcXEDbIBTtWMhCX8B+QIKLxPedZ2UzrFfsBzCWC2dh0gQTIx0aokNFWaI95lJYpb iPK60TKd64SWfWxqrHYXzIrUD4/Wg0y9p/J2p/0yvfD2uBvjjZWic2rQYvQAB55cclPVGcaXfIGW7 gtNNT3GNnXPt5ouh/05oHVrLzF2ILfZamuXu11UeSXPQQj2+VjKbsKnG0iaeyAwVeBaMZOFsEroK9 IJM4sw3LlvgqCkEHn+u0nsiDWPpVYQFENwM73GLX4IlzRm4k2/bkYoS19R09VI74mWVYIpHkDPrTm rUFTWDaQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pWxXV-00CkZM-Sg; Tue, 28 Feb 2023 10:48:57 +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 1pWxWT-00CjvI-6i; Tue, 28 Feb 2023 10:47:54 +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 87EFD6602FDB; Tue, 28 Feb 2023 10:47:51 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1677581272; bh=iTiXsbcvL98tLYBNMasBh9C/GsvGSy9IVHh+FRRt/uQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JUS5j3F6XoHW0m9VpkYAIFNOvfhSr5WYYwQlBODNQmGx6LU3E7Gu8H1TB92gy8Xjd Kq8eF5nFyJbUGP+bKRFb4ly03VMEG7gXr88VMTxkAgeMycW30vbYKZeTxY5GOHnUkY 9uLnnuXfvwbnQ9QdnH/A0ESKNlKVZOe43ZVPbkcI/xQchKJW3z/A4mLOF9n08ljlwh xYB3Q7tWUGWaeFC7Sqa9wJ9iQboVT6OMANFbFI+qau7j/iTk1UBInJP8FvXB5wrR86 JoMTMJhx3jbt5f6V/SLnOmfLmCcAxnU06nODrQa0PQl5k9UZgEKCYu/MZCpf6sHIc8 p8qn5ynxr+8Hg== 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 04/18] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators Date: Tue, 28 Feb 2023 11:47:27 +0100 Message-Id: <20230228104741.717819-5-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230228_024753_394624_1EB7D854 X-CRM114-Status: UNSURE ( 9.23 ) 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{