/*
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* platform_bcm43xx.c: bcm43xx platform data initilization file
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*
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* (C) Copyright 2016 Intel Corporation
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* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/sfi.h>
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#include <asm/intel-mid.h>
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#define WLAN_SFI_GPIO_IRQ_NAME "WLAN-interrupt"
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#define WLAN_SFI_GPIO_ENABLE_NAME "WLAN-enable"
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#define WLAN_DEV_NAME "0000:00:01.3"
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static struct regulator_consumer_supply bcm43xx_vmmc_supply = {
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.dev_name = WLAN_DEV_NAME,
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.supply = "vmmc",
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};
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static struct regulator_init_data bcm43xx_vmmc_data = {
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.constraints = {
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = 1,
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.consumer_supplies = &bcm43xx_vmmc_supply,
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};
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static struct fixed_voltage_config bcm43xx_vmmc = {
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.supply_name = "bcm43xx-vmmc-regulator",
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/*
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* Announce 2.0V here to be compatible with SDIO specification. The
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* real voltage and signaling are still 1.8V.
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*/
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.microvolts = 2000000, /* 1.8V */
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.gpio = -EINVAL,
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.startup_delay = 250 * 1000, /* 250ms */
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.enable_high = 1, /* active high */
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.enabled_at_boot = 0, /* disabled at boot */
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.init_data = &bcm43xx_vmmc_data,
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};
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static struct platform_device bcm43xx_vmmc_regulator = {
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.name = "reg-fixed-voltage",
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.id = PLATFORM_DEVID_AUTO,
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.dev = {
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.platform_data = &bcm43xx_vmmc,
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},
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};
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static int __init bcm43xx_regulator_register(void)
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{
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int ret;
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bcm43xx_vmmc.gpio = get_gpio_by_name(WLAN_SFI_GPIO_ENABLE_NAME);
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ret = platform_device_register(&bcm43xx_vmmc_regulator);
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if (ret) {
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pr_err("%s: vmmc regulator register failed\n", __func__);
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return ret;
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}
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return 0;
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}
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static void __init *bcm43xx_platform_data(void *info)
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{
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int ret;
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ret = bcm43xx_regulator_register();
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if (ret)
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return NULL;
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pr_info("Using generic wifi platform data\n");
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/* For now it's empty */
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return NULL;
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}
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static const struct devs_id bcm43xx_clk_vmmc_dev_id __initconst = {
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.name = "bcm43xx_clk_vmmc",
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.type = SFI_DEV_TYPE_SD,
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.get_platform_data = &bcm43xx_platform_data,
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};
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sfi_device(bcm43xx_clk_vmmc_dev_id);
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