From patchwork Mon Oct 28 18:12:35 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Cartwright X-Patchwork-Id: 3104071 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 7AE84BF924 for ; Mon, 28 Oct 2013 19:16:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9360C201EF for ; Mon, 28 Oct 2013 19:16:57 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AFFF82037F for ; Mon, 28 Oct 2013 19:16:55 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VasHy-00086j-6q; Mon, 28 Oct 2013 19:15:46 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VasHg-0008DC-MN; Mon, 28 Oct 2013 19:15:28 +0000 Received: from smtp.codeaurora.org ([198.145.11.231]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VasGk-00085F-6h for linux-arm-kernel@lists.infradead.org; Mon, 28 Oct 2013 19:14:34 +0000 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id B1ABE13F2A4; Mon, 28 Oct 2013 19:14:09 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id A2A6C13F2AD; Mon, 28 Oct 2013 19:14:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from joshc.qualcomm.com (rrcs-67-52-129-61.west.biz.rr.com [67.52.129.61]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: joshc@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id E4D1413F2A4; Mon, 28 Oct 2013 19:14:08 +0000 (UTC) Received: by joshc.qualcomm.com (Postfix, from userid 1000) id CE4A260D02; Mon, 28 Oct 2013 14:12:55 -0500 (CDT) Message-Id: <5a49bffc44c5f5bffe222560e489a712321ce971.1382985169.git.joshc@codeaurora.org> In-Reply-To: References: From: Josh Cartwright Date: Mon, 28 Oct 2013 13:12:35 -0500 To: Greg Kroah-Hartman , Samuel Ortiz , David Brown , Daniel Walker , Bryan Huntsman Subject: [PATCH v3 08/10] mfd: pm8x41: add support for Qualcomm 8x41 PMICs X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131028_151430_578580_FE1050DB X-CRM114-Status: GOOD ( 20.25 ) X-Spam-Score: -2.4 (--) Cc: linux-arm-msm@vger.kernel.org, Gilad Avidov , linux-kernel@vger.kernel.org, Michael Bohan , Sagar Dharia , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 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-Virus-Scanned: ClamAV using ClamSMTP The Qualcomm 8941 and 8841 PMICs 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: Josh Cartwright --- drivers/mfd/Kconfig | 10 ++++++++ drivers/mfd/Makefile | 1 + drivers/mfd/pm8x41.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 75 insertions(+) create mode 100644 drivers/mfd/pm8x41.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 914c3d1..0a288cb 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -476,6 +476,16 @@ config MFD_PM8XXX_IRQ This is required to use certain other PM 8xxx features, such as GPIO and MPP. +config MFD_PM8X41 + bool "Qualcomm PM8X41 PMIC" + depends on ARCH_MSM + select REGMAP_SPMI + help + This enables basic support for the Qualcomm 8941 and 8841 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. + config MFD_RDC321X tristate "RDC R-321x southbridge" select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 15b905c..ee4d338 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -149,6 +149,7 @@ 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_IRQ) += pm8xxx-irq.o +obj-$(CONFIG_MFD_PM8X41) += pm8x41.o obj-$(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/pm8x41.c b/drivers/mfd/pm8x41.c new file mode 100644 index 0000000..0a57221 --- /dev/null +++ b/drivers/mfd/pm8x41.c @@ -0,0 +1,64 @@ +/* Copyright (c) 2013, 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 pm8x41_regmap_config = { + .reg_bits = 16, + .val_bits = 8, + .max_register = 0xFFFF, +}; + +static int pm8x41_remove_child(struct device *dev, void *unused) +{ + platform_device_unregister(to_platform_device(dev)); + return 0; +} + +static int pm8x41_remove(struct spmi_device *sdev) +{ + device_for_each_child(&sdev->dev, NULL, pm8x41_remove_child); + return 0; +} + +static int pm8x41_probe(struct spmi_device *sdev) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_spmi(sdev, &pm8x41_regmap_config); + if (IS_ERR(regmap)) { + dev_dbg(&sdev->dev, "regmap creation failed.\n"); + return PTR_ERR(regmap); + } + + return of_platform_populate(sdev->dev.of_node, NULL, NULL, &sdev->dev); +} + +static struct of_device_id pm8x41_id_table[] = { + { "qcom,pm8841", }, + { "qcom,pm8941", }, + {}, +}; +MODULE_DEVICE_TABLE(of, pm8x41_id_table); + +static struct spmi_driver pm8x41_driver = { + .probe = pm8x41_probe, + .remove = pm8x41_remove, + .driver = { + .name = "qpnp,pm8x41", + .of_match_table = pm8x41_id_table, + }, +}; +module_spmi_driver(pm8x41_driver);