Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753156AbaJGE6d (ORCPT ); Tue, 7 Oct 2014 00:58:33 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:43844 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752994AbaJGE6a (ORCPT ); Tue, 7 Oct 2014 00:58:30 -0400 From: Gyungoh Yoo X-Google-Original-From: Gyungoh Yoo To: sameo@linux.intel.com, lee.jones@linaro.org Cc: grant.likely@linaro.org, robh+dt@kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, jack.yoo@skyworksinc.com Subject: [RESUBMIT PATCH v3 1/8] mfd: Add support for Skyworks SKY81452 driver Date: Tue, 7 Oct 2014 13:58:21 +0900 Message-Id: <1412657901-7865-1-git-send-email-jack.yoo@skyworksinc.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1412657745-7812-1-git-send-email-jack.yoo@skyworksinc.com> References: <1412657745-7812-1-git-send-email-jack.yoo@skyworksinc.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Gyungoh Yoo --- drivers/mfd/Kconfig | 12 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 111 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sky81452.h | 32 +++++++++++++ 4 files changed, 156 insertions(+) create mode 100644 drivers/mfd/sky81452.c create mode 100644 include/linux/mfd/sky81452.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf2..6962b4e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -626,6 +626,18 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_SKY81452 + tristate "Skyworks Solutions SKY81452" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + This is the core driver for the Skyworks SKY81452 backlight and + voltage regulator device. + + This driver can also be built as a module. If so, the module + will be called sky81452. + config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f001487..6c2f317 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -169,6 +169,7 @@ obj-$(CONFIG_MFD_AS3711) += as3711.o obj-$(CONFIG_MFD_AS3722) += as3722.o obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o +obj-$(CONFIG_MFD_SKY81452) += sky81452.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c new file mode 100644 index 0000000..9130112 --- /dev/null +++ b/drivers/mfd/sky81452.c @@ -0,0 +1,111 @@ +/* + * sky81452.c SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static const struct regmap_config sky81452_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int sky81452_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + const struct sky81452_platform_data *pdata = dev_get_platdata(dev); + struct mfd_cell cells[2]; + struct regmap *regmap; + int ret; + + if (!pdata) { + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + regmap = devm_regmap_init_i2c(client, &sky81452_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to initialize. err=%ld", PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + i2c_set_clientdata(client, regmap); + + memset(cells, 0, sizeof(cells)); + cells[0].name = "sky81452-backlight"; + cells[0].of_compatible = "skyworks,sky81452-backlight"; + cells[0].platform_data = pdata->bl_pdata; + cells[0].pdata_size = sizeof(*pdata->bl_pdata); + cells[1].name = "sky81452-regulator"; + cells[1].of_compatible = "skyworks,sky81452-regulator"; + cells[1].platform_data = pdata->regulator_init_data; + cells[1].pdata_size = sizeof(*pdata->regulator_init_data); + + ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL); + if (ret) + dev_err(dev, "failed to add child devices. err=%d", ret); + + return ret; +} + +static int sky81452_remove(struct i2c_client *client) +{ + mfd_remove_devices(&client->dev); + return 0; +} + +static const struct i2c_device_id sky81452_ids[] = { + { "sky81452" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sky81452_ids); + +#ifdef CONFIG_OF +static const struct of_device_id sky81452_of_match[] = { + { .compatible = "skyworks,sky81452", }, + { } +}; +MODULE_DEVICE_TABLE(of, sky81452_of_match); +#endif + +static struct i2c_driver sky81452_driver = { + .driver = { + .name = "sky81452", + .of_match_table = of_match_ptr(sky81452_of_match), + }, + .probe = sky81452_probe, + .remove = sky81452_remove, + .id_table = sky81452_ids, +}; + +module_i2c_driver(sky81452_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver"); +MODULE_AUTHOR("Gyungoh Yoo "); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.2"); diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h new file mode 100644 index 0000000..142f762 --- /dev/null +++ b/include/linux/mfd/sky81452.h @@ -0,0 +1,32 @@ +/* + * sky81452.h SKY81452 MFD driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#ifndef _SKY81452_H +#define _SKY81452_H + +#include +#include + +struct sky81452_platform_data { + struct sky81452_bl_platform_data *bl_pdata; + struct regulator_init_data *regulator_init_data; +}; + +#endif -- 1.9.1 -- 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/