From patchwork Thu Jul 17 16:17:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanimir Varbanov X-Patchwork-Id: 4576911 Return-Path: X-Original-To: patchwork-linux-arm-msm@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 4A064C0514 for ; Thu, 17 Jul 2014 16:21:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6787820122 for ; Thu, 17 Jul 2014 16:20:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6789A201BA for ; Thu, 17 Jul 2014 16:20:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933607AbaGQQUn (ORCPT ); Thu, 17 Jul 2014 12:20:43 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:34646 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965270AbaGQQUm (ORCPT ); Thu, 17 Jul 2014 12:20:42 -0400 Received: from localhost.localdomain (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 5EB31C7CA; Thu, 17 Jul 2014 19:20:36 +0300 (EEST) From: Stanimir Varbanov To: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Lee Jones , Samuel Ortiz Cc: Ian Campbell , Pawel Moll , Rob Herring , Kumar Gala , Mark Rutland , Grant Likely , Courtney Cavin , Bjorn Andersson , Josh Cartwright , Stanimir Varbanov Subject: [PATCH v2 1/4] mfd: pm8xxx-spmi: add support for Qualcomm SPMI PMICs Date: Thu, 17 Jul 2014 19:17:32 +0300 Message-Id: <1405613855-27572-2-git-send-email-svarbanov@mm-sol.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1405613855-27572-1-git-send-email-svarbanov@mm-sol.com> References: <1405613855-27572-1-git-send-email-svarbanov@mm-sol.com> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 From: Josh Cartwright The Qualcomm SPMI PMIC chips are components used with the Snapdragon 800 series SoC family. This driver exists largely as a glue mfd component, it exists to be an owner of an SPMI regmap for children devices described in device tree. Signed-off-by: Stanimir Varbanov Acked-by: Lee Jones --- drivers/mfd/Kconfig | 16 +++++++++++ drivers/mfd/Makefile | 1 + drivers/mfd/pm8xxx-spmi.c | 63 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 80 insertions(+), 0 deletions(-) create mode 100644 drivers/mfd/pm8xxx-spmi.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 6cc4b6a..122e2d9 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -524,6 +524,22 @@ config MFD_PM8921_CORE Say M here if you want to include support for PM8921 chip as a module. This will build a module called "pm8921-core". +config MFD_PM8XXX_SPMI + tristate "Qualcomm PM8XXX SPMI PMICs" + depends on ARCH_QCOM || COMPILE_TEST + depends on OF + depends on SPMI + select MFD_PM8XXX + select REGMAP_SPMI + help + This enables support for the Qualcomm PM8XXX SPMI PMICs. + These PMICs are currently used with the Snapdragon 800 series of + SoCs. Note, that this will only be useful paired with descriptions + of the independent functions as children nodes in the device tree. + + Say M here if you want to include support for the PM8XXX SPMI PMIC + series as a module. The module will be called "pm8xxx-spmi". + config MFD_RDC321X tristate "RDC R-321x southbridge" select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8afedba..93d82cc 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -153,6 +153,7 @@ obj-$(CONFIG_MFD_SI476X_CORE) += si476x-core.o obj-$(CONFIG_MFD_CS5535) += cs5535-mfd.o obj-$(CONFIG_MFD_OMAP_USB_HOST) += omap-usb-host.o omap-usb-tll.o obj-$(CONFIG_MFD_PM8921_CORE) += pm8921-core.o ssbi.o +obj-$(CONFIG_MFD_PM8XXX_SPMI) += pm8xxx-spmi.o obj-$(CONFIG_TPS65911_COMPARATOR) += tps65911-comparator.o obj-$(CONFIG_MFD_TPS65090) += tps65090.o obj-$(CONFIG_MFD_AAT2870_CORE) += aat2870-core.o diff --git a/drivers/mfd/pm8xxx-spmi.c b/drivers/mfd/pm8xxx-spmi.c new file mode 100644 index 0000000..882da5e --- /dev/null +++ b/drivers/mfd/pm8xxx-spmi.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2014, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include +#include +#include +#include +#include + +static const struct regmap_config pm8xxx_regmap_config = { + .reg_bits = 16, + .val_bits = 8, + .max_register = 0xffff, +}; + +static int pm8xxx_probe(struct spmi_device *sdev) +{ + struct device_node *root = sdev->dev.of_node; + struct regmap *regmap; + + regmap = devm_regmap_init_spmi_ext(sdev, &pm8xxx_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return of_platform_populate(root, NULL, NULL, &sdev->dev); +} + +static void pm8xxx_remove(struct spmi_device *sdev) +{ + of_platform_depopulate(&sdev->dev); +} + +static const struct of_device_id pm8xxx_id_table[] = { + { .compatible = "qcom,pm8941" }, + { .compatible = "qcom,pm8841" }, + { .compatible = "qcom,pma8084" }, + { } +}; +MODULE_DEVICE_TABLE(of, pm8xxx_id_table); + +static struct spmi_driver pm8xxx_driver = { + .probe = pm8xxx_probe, + .remove = pm8xxx_remove, + .driver = { + .name = "pm8xxx-spmi", + .of_match_table = pm8xxx_id_table, + }, +}; +module_spmi_driver(pm8xxx_driver); + +MODULE_DESCRIPTION("PM8XXX SPMI PMIC driver"); +MODULE_ALIAS("platform:" KBUILD_MODNAME); +MODULE_AUTHOR("The Linux Foundation"); +MODULE_LICENSE("GPL v2");