Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753577AbaJaE12 (ORCPT ); Fri, 31 Oct 2014 00:27:28 -0400 Received: from mail-pa0-f48.google.com ([209.85.220.48]:62700 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753283AbaJaE1Z (ORCPT ); Fri, 31 Oct 2014 00:27:25 -0400 From: Tim Harvey To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Philipp Zabel , Fabio Estevam , Shawn Guo , Lucas Stach , Silvio F , Christian Hemp , Russell King , Iain Paton , devicetree@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> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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>; }; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/