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Release 4.14 drivers/mfd/intel-lpss-acpi.c

Directory: drivers/mfd
/*
 * Intel LPSS ACPI support.
 *
 * Copyright (C) 2015, Intel Corporation
 *
 * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 *          Mika Westerberg <mika.westerberg@linux.intel.com>
 *
 * 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 <linux/acpi.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/platform_device.h>
#include <linux/property.h>

#include "intel-lpss.h"


static struct property_entry spt_i2c_properties[] = {
	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
	{ },
};


static const struct intel_lpss_platform_info spt_i2c_info = {
	.clk_rate = 120000000,
	.properties = spt_i2c_properties,
};


static const struct intel_lpss_platform_info bxt_info = {
	.clk_rate = 100000000,
};


static struct property_entry bxt_i2c_properties[] = {
	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 42),
	PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
	PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208),
	{ },
};


static const struct intel_lpss_platform_info bxt_i2c_info = {
	.clk_rate = 133000000,
	.properties = bxt_i2c_properties,
};


static struct property_entry apl_i2c_properties[] = {
	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 207),
	PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
	PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208),
	{ },
};


static const struct intel_lpss_platform_info apl_i2c_info = {
	.clk_rate = 133000000,
	.properties = apl_i2c_properties,
};


static const struct acpi_device_id intel_lpss_acpi_ids[] = {
	/* SPT */
	{ "INT3446", (kernel_ulong_t)&spt_i2c_info },
	{ "INT3447", (kernel_ulong_t)&spt_i2c_info },
	/* BXT */
	{ "80860AAC", (kernel_ulong_t)&bxt_i2c_info },
	{ "80860ABC", (kernel_ulong_t)&bxt_info },
	{ "80860AC2", (kernel_ulong_t)&bxt_info },
	/* APL */
	{ "80865AAC", (kernel_ulong_t)&apl_i2c_info },
	{ "80865ABC", (kernel_ulong_t)&bxt_info },
	{ "80865AC2", (kernel_ulong_t)&bxt_info },
	{ }
};
MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids);


static int intel_lpss_acpi_probe(struct platform_device *pdev) { struct intel_lpss_platform_info *info; const struct acpi_device_id *id; id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev); if (!id) return -ENODEV; info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); info->irq = platform_get_irq(pdev, 0); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); return intel_lpss_probe(&pdev->dev, info); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko129100.00%1100.00%
Total129100.00%1100.00%


static int intel_lpss_acpi_remove(struct platform_device *pdev) { intel_lpss_remove(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko30100.00%1100.00%
Total30100.00%1100.00%

static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops); static struct platform_driver intel_lpss_acpi_driver = { .probe = intel_lpss_acpi_probe, .remove = intel_lpss_acpi_remove, .driver = { .name = "intel-lpss", .acpi_match_table = intel_lpss_acpi_ids, .pm = &intel_lpss_acpi_pm_ops, }, }; module_platform_driver(intel_lpss_acpi_driver); MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>"); MODULE_DESCRIPTION("Intel LPSS ACPI driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko29057.65%116.67%
Mika Westerberg15931.61%350.00%
Jarkko Nikula509.94%116.67%
Heikki Krogerus40.80%116.67%
Total503100.00%6100.00%
Directory: drivers/mfd
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