From patchwork Fri Oct 31 04:27:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tim Harvey X-Patchwork-Id: 5202201 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AE211C11AC for ; Fri, 31 Oct 2014 04:30:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BAEAD20176 for ; Fri, 31 Oct 2014 04:30:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D156620172 for ; Fri, 31 Oct 2014 04:30:53 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xk3p9-0006UY-UA; Fri, 31 Oct 2014 04:28:31 +0000 Received: from mail-pa0-f42.google.com ([209.85.220.42]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xk3oP-0006Fz-RH for linux-arm-kernel@lists.infradead.org; Fri, 31 Oct 2014 04:27:47 +0000 Received: by mail-pa0-f42.google.com with SMTP id bj1so6928188pad.1 for ; Thu, 30 Oct 2014 21:27:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=QjUGrf4wxvEAjSrXQJUR09p4oci0aPF+aM6BmXqd4+4=; b=XayR9UDDlIaHnt2XRvBcGaISt+ftNfkjqWLFjS8B0iSSZ9QDnaHkTIhQOxMtRJybbI 8d7SKCfoSGfsLETLiTeB2wMvq/I2JHAPOhtY686qzAAaFiqD826jwjfjwKKunt1St9Ud 2VMsOfUJLQiV6qNeSpDvxwx6P/+KnaEet0HymvQzLm6LJelEeNvvavptCw9mjWO0xbxr bENmYKFcpR+54fIRPcfFGpCmIdfHDWkwEF0ivXNpmX9ha1GmkpijybgINpmIdqN+f6j7 lLV2v6dqrXa+LT95DCKWwDnEDkeusUjbbT5IZk9SzAl1i2ICATawS72KHhYH8dtgIQoX eMcQ== X-Gm-Message-State: ALoCoQnp9ZnQ/piPPzXxLZHkww+pLIZwXGXdNBAZlFenlGtk+kdwX+f74UXq8LNqWebLY1yrRcf/ X-Received: by 10.66.221.3 with SMTP id qa3mr21865625pac.63.1414729644594; Thu, 30 Oct 2014 21:27:24 -0700 (PDT) Received: from tharvey-gw.gw (68-189-91-139.static.snlo.ca.charter.com. [68.189.91.139]) by mx.google.com with ESMTPSA id mp5sm8542239pbc.33.2014.10.30.21.27.23 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 30 Oct 2014 21:27:24 -0700 (PDT) From: Tim Harvey To: linux-kernel@vger.kernel.org Subject: [PATCH 5/5] ARM: imx: ventana: enable LDO bypass mode for GW54xx Date: Thu, 30 Oct 2014 21:27:11 -0700 Message-Id: <1414729631-11005-6-git-send-email-tharvey@gateworks.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1414729631-11005-1-git-send-email-tharvey@gateworks.com> References: <1414729631-11005-1-git-send-email-tharvey@gateworks.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141030_212745_961018_54659C80 X-CRM114-Status: GOOD ( 12.04 ) X-Spam-Score: -0.7 (/) Cc: devicetree@vger.kernel.org, Silvio F , linux-arm-kernel@lists.infradead.org, Philipp Zabel , Christian Hemp , Russell King , Iain Paton , Fabio Estevam , Shawn Guo , Lucas Stach X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The GW54xx baseboard has a PFUZE100 PMIC capable of regulating the core voltages (VDD_ARM, VDD_SOC) externally such that the internal IMX6 anatop LDO regulators are not needed. This provides a power reduction (as the PMIC is more efficient than the LDO's) as well as moves some of the power/thermal burden from the IMX to the PMIC. Cc: devicetree@vger.kernel.org Cc: Philipp Zabel Cc: Shawn Guo Signed-off-by: Tim Harvey --- arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 55 +++++++++++++++++++++++++---------- 1 file changed, 39 insertions(+), 16 deletions(-) diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi index cf13239..3ab0872 100644 --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi @@ -142,6 +142,11 @@ status = "okay"; }; +&cpu0 { + arm-supply = <®_vdd_arm>; + soc-supply = <®_vdd_soc>; +}; + &fec { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enet>; @@ -215,7 +220,8 @@ reg = <0x08>; regulators { - sw1a_reg: sw1ab { + /* VDD_ARM */ + reg_vdd_arm: sw1ab { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; @@ -223,7 +229,8 @@ regulator-ramp-delay = <6250>; }; - sw1c_reg: sw1c { + /* VDD_SOC */ + reg_vdd_soc: sw1c { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; @@ -231,77 +238,93 @@ regulator-ramp-delay = <6250>; }; - sw2_reg: sw2 { + /* VDD_HIGH */ + reg_3p0v: sw2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3950000>; regulator-boot-on; regulator-always-on; }; - sw3a_reg: sw3a { + /* VDD_DDR */ + reg_ddra: sw3a { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; - sw3b_reg: sw3b { + /* VDD_DDR */ + reg_ddrb: sw3b { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; - sw4_reg: sw4 { + /* VDD_1P8 */ + reg_1p8v: sw4 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; }; - swbst_reg: swbst { + /* VDD_5P0 */ + reg_swbst: swbst { regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5150000>; }; - snvs_reg: vsnvs { + reg_snvs: vsnvs { regulator-min-microvolt = <1000000>; regulator-max-microvolt = <3000000>; regulator-boot-on; regulator-always-on; }; - vref_reg: vrefddr { + /* VDD_VREF */ + reg_vref: vrefddr { regulator-boot-on; regulator-always-on; }; - vgen1_reg: vgen1 { + /* VDD_PCI_1P5_1 */ + reg_1p5va: vgen1 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; + regulator-boot-on; + regulator-always-on; }; - vgen2_reg: vgen2 { + /* VDD_PCI_1P5_2 */ + reg_1p5vb: vgen2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; + regulator-boot-on; + regulator-always-on; }; - vgen3_reg: vgen3 { + /* unused */ + reg_vgen3: vgen3 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; - vgen4_reg: vgen4 { + /* VDD_AUD_1P8 */ + reg_aud_1p8v: vgen4 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; - vgen5_reg: vgen5 { + /* VDD_2P5 */ + reg_2p5v: vgen5 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; - vgen6_reg: vgen6 { + /* unused */ + reg_vgen6: vgen6 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; @@ -320,7 +343,7 @@ compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks 201>; - VDDA-supply = <&sw4_reg>; + VDDA-supply = <®_1p8v>; VDDIO-supply = <®_3p3v>; };