From patchwork Thu Aug 2 18:36:33 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Warren X-Patchwork-Id: 174797 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id BF4CF2C008E for ; Fri, 3 Aug 2012 04:36:42 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752888Ab2HBSgl (ORCPT ); Thu, 2 Aug 2012 14:36:41 -0400 Received: from avon.wwwdotorg.org ([70.85.31.133]:36420 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752285Ab2HBSgk (ORCPT ); Thu, 2 Aug 2012 14:36:40 -0400 Received: from severn.wwwdotorg.org (unknown [192.168.65.5]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by avon.wwwdotorg.org (Postfix) with ESMTPS id D81246256; Thu, 2 Aug 2012 12:42:40 -0600 (MDT) Received: from localhost.localdomain (searspoint.nvidia.com [216.228.112.21]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by severn.wwwdotorg.org (Postfix) with ESMTPSA id 85B48E40F5; Thu, 2 Aug 2012 12:36:38 -0600 (MDT) From: Stephen Warren To: Olof Johansson , Colin Cross Cc: Marc Dietrich , Mark Brown , Laxman Dewangan , linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, Stephen Warren Subject: [PATCH] ARM: dt: tegra: paz00: add regulators Date: Thu, 2 Aug 2012 12:36:33 -0600 Message-Id: <1343932593-999-1-git-send-email-swarren@wwwdotorg.org> X-Mailer: git-send-email 1.7.0.4 X-NVConfidentiality: public X-Virus-Scanned: clamav-milter 0.96.5 at avon.wwwdotorg.org X-Virus-Status: Clean Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Stephen Warren The Toshiba AC100/PAZ00 uses a TPS6586x regulator. Instantiate this. Three data sources were used for the data encoded here: * The HW defaults, as extracted from real HW. * The schematic, which specifies a voltage for each rail in the signal names. * The AC100 kernel used by the Ubuntu port: repo git://gitorious.org/~marvin24/ac100/marvin24s-kernel.git branch chromeos-ac100-3.0 file arch/arm/mach-tegra/board-paz00-power.c For many rails, the constraints in that tree specified differing min and max voltages. In all cases, the min value was ignored, since there's no need currently to vary any of the voltages at run-time. DVFS might change this in the future. In most cases these sources all matched. Differences are: sm0: HW defaults and schematic match at 1.2v. marvin24's kernel had a max of 1.3v, but this higher voltage was only applied to HW by DVFS code, which isn't currently supported in mainline. sm1: HW defaults and schematic match at 1.0v. marvin24's kernel had a max of 1.125v, but this higher voltage was only applied to HW by DVFS code, which isn't currently supported in mainline. ldo3: The HW default is on. marvin24's kernel didn't specify always-on, but since the board wasn't marked as having fully constrained regulators, the rail was not turned off, so the difference had no effect. The rail is needed for USB. ldo6: The HW default is 2.85v. The schematics indicate 2.85v. However, since this regulator is used for the same purpose as on other boards that require 1.8v, this is set to 1.8v. Note that this regulator feeds the CRT VDAC on Tegra, and so in practice is unlikely to be used, even though it is actaully hooked up in HW. Portions based on work by Laxman Dewangan Signed-off-by: Stephen Warren Tested-by: Marc Dietrich # v2 Acked-by: Laxman Dewangan --- Laxman, note that I have similar patches for Seaboard and Ventana too, but since the structure of all 3 is basically the same, I figured I'd only send 1 for review first to get any issues sorted, then post the other 2 later. v4: * Added supply properties for all TPS6586x regulators. * Made SM* supplied by the new SYS regulator. * Removed ldo0 configuration, since it isn't used. Clarified ldo6 usage in commit description. v3: * Slight rewording of sm0/sm1 data source resolution description. * Adjusted ldo6 to 1.8v to match other boards using it for the same thing. * Enhanced all regulator-name properties to also list the Tegra20 pins driven by the regulators. Thus, the regulator-name properties mostly match Seaboard and Ventana. Note that the AC100 schematics don't actually name the signals themselves after the pins, like Seaboard/Ventana do. * Added ldo_rtc regulator. v2: * Made all constraints specify a single voltage rather than different min/max, per description above. * Removed vin-supply properties from LDO nodes; the driver and binding need to be updated to support specifying the parent regulators before we can put these into DT. --- arch/arm/boot/dts/tegra20-paz00.dts | 173 +++++++++++++++++++++++++++++++++++ 1 files changed, 173 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts index 684a9e1..ddf287f 100644 --- a/arch/arm/boot/dts/tegra20-paz00.dts +++ b/arch/arm/boot/dts/tegra20-paz00.dts @@ -272,12 +272,170 @@ status = "okay"; clock-frequency = <400000>; + pmic: tps6586x@34 { + compatible = "ti,tps6586x"; + reg = <0x34>; + interrupts = <0 86 0x4>; + + #gpio-cells = <2>; + gpio-controller; + + sys-supply = <&p5valw_reg>; + vin-sm0-supply = <&sys_reg>; + vin-sm1-supply = <&sys_reg>; + vin-sm2-supply = <&sys_reg>; + vinldo01-supply = <&sm2_reg>; + vinldo23-supply = <&sm2_reg>; + vinldo4-supply = <&sm2_reg>; + vinldo678-supply = <&sm2_reg>; + vinldo9-supply = <&sm2_reg>; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + + sys_reg: regulator@0 { + reg = <0>; + regulator-compatible = "sys"; + regulator-name = "vdd_sys"; + regulator-always-on; + }; + + regulator@1 { + reg = <1>; + regulator-compatible = "sm0"; + regulator-name = "+1.2vs_sm0,vdd_core"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + }; + + regulator@2 { + reg = <2>; + regulator-compatible = "sm1"; + regulator-name = "+1.0vs_sm1,vdd_cpu"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + }; + + sm2_reg: regulator@3 { + reg = <3>; + regulator-compatible = "sm2"; + regulator-name = "+3.7vs_sm2,vin_ldo*"; + regulator-min-microvolt = <3700000>; + regulator-max-microvolt = <3700000>; + regulator-always-on; + }; + + /* LDO0 is not connected to anything */ + + regulator@5 { + reg = <5>; + regulator-compatible = "ldo1"; + regulator-name = "+1.1vs_ldo1,avdd_pll*"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + regulator@6 { + reg = <6>; + regulator-compatible = "ldo2"; + regulator-name = "+1.2vs_ldo2,vdd_rtc"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + regulator@7 { + reg = <7>; + regulator-compatible = "ldo3"; + regulator-name = "+3.3vs_ldo3,avdd_usb*"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + regulator@8 { + reg = <8>; + regulator-compatible = "ldo4"; + regulator-name = "+1.8vs_ldo4,avdd_osc,vddio_sys"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + regulator@9 { + reg = <9>; + regulator-compatible = "ldo5"; + regulator-name = "+2.85vs_ldo5,vcore_mmc"; + regulator-min-microvolt = <2850000>; + regulator-max-microvolt = <2850000>; + regulator-always-on; + }; + + regulator@10 { + reg = <10>; + regulator-compatible = "ldo6"; + /* + * Research indicates this should be + * 1.8v; other boards that use this + * rail for the same purpose need it + * set to 1.8v. The schematic signal + * name is incorrect; perhaps copied + * from an incorrect NVIDIA reference. + */ + regulator-name = "+2.85vs_ldo6,avdd_vdac"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + regulator@11 { + reg = <11>; + regulator-compatible = "ldo7"; + regulator-name = "+3.3vs_ldo7,avdd_hdmi"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + regulator@12 { + reg = <12>; + regulator-compatible = "ldo8"; + regulator-name = "+1.8vs_ldo8,avdd_hdmi_pll"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + regulator@13 { + reg = <13>; + regulator-compatible = "ldo9"; + regulator-name = "+2.85vs_ldo9,vdd_ddr_rx"; + regulator-min-microvolt = <2850000>; + regulator-max-microvolt = <2850000>; + regulator-always-on; + }; + + regulator@14 { + reg = <14>; + regulator-compatible = "ldo_rtc"; + regulator-name = "+3.3vs_rtc"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + }; + }; + adt7461@4c { compatible = "adi,adt7461"; reg = <0x4c>; }; }; + pmc { + nvidia,invert-interrupt; + }; + usb@c5000000 { status = "okay"; }; @@ -325,6 +483,21 @@ }; }; + regulators { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + p5valw_reg: regulator@0 { + compatible = "regulator-fixed"; + reg = <0>; + regulator-name = "+5valw"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + }; + }; + sound { compatible = "nvidia,tegra-audio-alc5632-paz00", "nvidia,tegra-audio-alc5632";