mfd: Add support for Qualcomm SPMI PMICs (c3a973a7) · Commits · 戴 / test

drivers/mfd/Kconfig

+15 −0

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		@@ -567,6 +567,21 @@ 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_SPMI_PMIC
		tristate "Qualcomm SPMI PMICs"
		depends on ARCH_QCOM \|\| COMPILE_TEST
		depends on OF
		depends on SPMI
		select REGMAP_SPMI
		help
		This enables support for the Qualcomm 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 SPMI PMIC
		series as a module. The module will be called "qcom-spmi-pmic".

		config MFD_RDC321X
		tristate "RDC R-321x southbridge"
		select MFD_CORE

drivers/mfd/Makefile

+1 −0

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		@@ -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-$(CONFIG_MFD_SPMI_PMIC) += qcom-spmi-pmic.o
		obj-$(CONFIG_TPS65911_COMPARATOR) += tps65911-comparator.o
		obj-$(CONFIG_MFD_TPS65090) += tps65090.o
		obj-$(CONFIG_MFD_AAT2870_CORE) += aat2870-core.o

drivers/mfd/qcom-spmi-pmic.c

0 → 100644

+67 −0

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		/*
		* 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 <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/spmi.h>
		#include <linux/regmap.h>
		#include <linux/of_platform.h>

		static const struct regmap_config spmi_regmap_config = {
		.reg_bits = 16,
		.val_bits = 8,
		.max_register = 0xffff,
		.fast_io = true,
		};

		static int pmic_spmi_probe(struct spmi_device *sdev)
		{
		struct device_node *root = sdev->dev.of_node;
		struct regmap *regmap;

		regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
		if (IS_ERR(regmap))
		return PTR_ERR(regmap);

		return of_platform_populate(root, NULL, NULL, &sdev->dev);
		}

		static void pmic_spmi_remove(struct spmi_device *sdev)
		{
		of_platform_depopulate(&sdev->dev);
		}

		static const struct of_device_id pmic_spmi_id_table[] = {
		{ .compatible = "qcom,spmi-pmic" },
		{ .compatible = "qcom,pm8941" },
		{ .compatible = "qcom,pm8841" },
		{ .compatible = "qcom,pma8084" },
		{ }
		};
		MODULE_DEVICE_TABLE(of, pmic_spmi_id_table);

		static struct spmi_driver pmic_spmi_driver = {
		.probe = pmic_spmi_probe,
		.remove = pmic_spmi_remove,
		.driver = {
		.name = "pmic-spmi",
		.of_match_table = pmic_spmi_id_table,
		},
		};
		module_spmi_driver(pmic_spmi_driver);

		MODULE_DESCRIPTION("Qualcomm SPMI PMIC driver");
		MODULE_ALIAS("spmi:spmi-pmic");
		MODULE_LICENSE("GPL v2");
		MODULE_AUTHOR("Josh Cartwright <joshc@codeaurora.org>");
		MODULE_AUTHOR("Stanimir Varbanov <svarbanov@mm-sol.com>");

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