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Release 4.14 arch/x86/platform/intel-mid/device_libs/platform_bcm43xx.c

/*
 * platform_bcm43xx.c: bcm43xx platform data initilization file
 *
 * (C) Copyright 2016 Intel Corporation
 * Author: Andy Shevchenko <andriy.shevchenko@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
 * as published by the Free Software Foundation; version 2
 * of the License.
 */

#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/sfi.h>

#include <asm/intel-mid.h>


#define WLAN_SFI_GPIO_IRQ_NAME		"WLAN-interrupt"

#define WLAN_SFI_GPIO_ENABLE_NAME	"WLAN-enable"


#define WLAN_DEV_NAME			"0000:00:01.3"


static struct regulator_consumer_supply bcm43xx_vmmc_supply = {
	.dev_name		= WLAN_DEV_NAME,
	.supply			= "vmmc",
};


static struct regulator_init_data bcm43xx_vmmc_data = {
	.constraints = {
		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
        },
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &bcm43xx_vmmc_supply,
};


static struct fixed_voltage_config bcm43xx_vmmc = {
	.supply_name		= "bcm43xx-vmmc-regulator",
	/*
         * Announce 2.0V here to be compatible with SDIO specification. The
         * real voltage and signaling are still 1.8V.
         */
	.microvolts		= 2000000,		/* 1.8V */
	.gpio			= -EINVAL,
	.startup_delay		= 250 * 1000,		/* 250ms */
	.enable_high		= 1,			/* active high */
	.enabled_at_boot	= 0,			/* disabled at boot */
	.init_data		= &bcm43xx_vmmc_data,
};


static struct platform_device bcm43xx_vmmc_regulator = {
	.name		= "reg-fixed-voltage",
	.id		= PLATFORM_DEVID_AUTO,
	.dev = {
		.platform_data	= &bcm43xx_vmmc,
        },
};


static int __init bcm43xx_regulator_register(void) { int ret; bcm43xx_vmmc.gpio = get_gpio_by_name(WLAN_SFI_GPIO_ENABLE_NAME); ret = platform_device_register(&bcm43xx_vmmc_regulator); if (ret) { pr_err("%s: vmmc regulator register failed\n", __func__); return ret; } return 0; }

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Andy Shevchenko48100.00%1100.00%
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static void __init *bcm43xx_platform_data(void *info) { int ret; ret = bcm43xx_regulator_register(); if (ret) return NULL; pr_info("Using generic wifi platform data\n"); /* For now it's empty */ return NULL; }

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Andy Shevchenko36100.00%1100.00%
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static const struct devs_id bcm43xx_clk_vmmc_dev_id __initconst = { .name = "bcm43xx_clk_vmmc", .type = SFI_DEV_TYPE_SD, .get_platform_data = &bcm43xx_platform_data, }; sfi_device(bcm43xx_clk_vmmc_dev_id);

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Andy Shevchenko269100.00%1100.00%
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