From patchwork Thu Mar 18 09:15:46 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 86634 X-Patchwork-Delegate: khilman@deeprootsystems.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o2I9GJXU025208 for ; Thu, 18 Mar 2010 09:16:27 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751413Ab0CRJQS (ORCPT ); Thu, 18 Mar 2010 05:16:18 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:47865 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750999Ab0CRJQI (ORCPT ); Thu, 18 Mar 2010 05:16:08 -0400 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id o2I9G3k8030678 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 18 Mar 2010 04:16:06 -0500 Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id o2I9FvTV012469; Thu, 18 Mar 2010 14:45:57 +0530 (IST) Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by linfarm476.india.ti.com (8.12.11/8.12.11) with ESMTP id o2I9Fvt8004308; Thu, 18 Mar 2010 14:45:57 +0530 Received: (from a0393109@localhost) by linfarm476.india.ti.com (8.12.11/8.12.11/Submit) id o2I9FvTX004306; Thu, 18 Mar 2010 14:45:57 +0530 From: Thara Gopinath To: linux-omap@vger.kernel.org Cc: khilman@deeprootsystems.com, paul@pwsan.com, nm@ti.com, b-cousson@ti.com, vishwanath.bs@ti.com, sawant@ti.com, Thara Gopinath Subject: [PATCHv2 08/17] OMAP3: PM: Adding smartreflex class 3 driver. Date: Thu, 18 Mar 2010 14:45:46 +0530 Message-Id: <1268903755-4151-9-git-send-email-thara@ti.com> X-Mailer: git-send-email 1.5.5 In-Reply-To: <1268903755-4151-8-git-send-email-thara@ti.com> References: <1268903755-4151-1-git-send-email-thara@ti.com> <1268903755-4151-2-git-send-email-thara@ti.com> <1268903755-4151-3-git-send-email-thara@ti.com> <1268903755-4151-4-git-send-email-thara@ti.com> <1268903755-4151-5-git-send-email-thara@ti.com> <1268903755-4151-6-git-send-email-thara@ti.com> <1268903755-4151-7-git-send-email-thara@ti.com> <1268903755-4151-8-git-send-email-thara@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 18 Mar 2010 09:16:29 +0000 (UTC) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 62accd2..0f8c406 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -49,6 +49,7 @@ obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o obj-$(CONFIG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o +obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o AFLAGS_sleep24xx.o :=-Wa,-march=armv6 AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c new file mode 100644 index 0000000..2832b5a --- /dev/null +++ b/arch/arm/mach-omap2/smartreflex-class3.c @@ -0,0 +1,48 @@ +/* + * Smart reflex Class 3 specific implementations + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include "smartreflex.h" + +static int sr_class3_enable(int id) +{ + unsigned long volt = 0; + + if (id == SR1) + volt = get_curr_vdd1_voltage(); + else if (id == SR2) + volt = get_curr_vdd2_voltage(); + if (!volt) { + pr_warning("Current voltage unknown.Cannot enable SR%d\n", id); + return false; + } + + return sr_enable(id, volt); +} + +static int sr_class3_disable(int id) +{ + sr_disable(id); + + return true; +} + +/* SR class3 structure */ +struct omap_smartreflex_class_data class3_data = { + .enable = sr_class3_enable, + .disable = sr_class3_disable, +}; + +static int __init sr_class3_init(void) +{ + omap_sr_register_class(&class3_data); + return 0; +} +late_initcall(sr_class3_init); diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 232fd9e..785b7e6 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -55,7 +55,7 @@ config OMAP_DEBUG_LEDS config OMAP_SMARTREFLEX bool "SmartReflex support" - depends on ARCH_OMAP3 && TWL4030_CORE && PM + depends on ARCH_OMAP3 && PM help Say Y if you want to enable SmartReflex. @@ -70,6 +70,15 @@ config OMAP_SMARTREFLEX compensation for VDD1 and VDD2, user must write 1 to /sys/power/sr_vddX_autocomp, where X is 1 or 2. +config OMAP_SMARTREFLEX_CLASS3 + bool "Class 3 mode of Smartreflex Implementation" + depends on OMAP_SMARTREFLEX && TWL4030_CORE + help + Say Y to enable Class 3 implementation of Smartreflex + + Class 3 implementation of Smartreflex employs continuous hardware + voltage caliberation. + config OMAP_SMARTREFLEX_TESTING bool "Smartreflex testing support" depends on OMAP_SMARTREFLEX