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/*
* Synopsys G210 Test Chip driver
*
* Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
*
* Authors: Joao Pinto <jpinto@synopsys.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/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/delay.h>
#include "ufshcd-pltfrm.h"
#include "ufshcd-dwc.h"
#include "tc-dwc-g210.h"
/**
* UFS DWC specific variant operations
*/
static struct ufs_hba_variant_ops tc_dwc_g210_20bit_pltfm_hba_vops = {
.name = "tc-dwc-g210-pltfm",
.link_startup_notify = ufshcd_dwc_link_startup_notify,
.phy_initialization = tc_dwc_g210_config_20_bit,
};
static struct ufs_hba_variant_ops tc_dwc_g210_40bit_pltfm_hba_vops = {
.name = "tc-dwc-g210-pltfm",
.link_startup_notify = ufshcd_dwc_link_startup_notify,
.phy_initialization = tc_dwc_g210_config_40_bit,
};
static const struct of_device_id tc_dwc_g210_pltfm_match[] = {
{
.compatible = "snps,g210-tc-6.00-20bit",
.data = &tc_dwc_g210_20bit_pltfm_hba_vops,
},
{
.compatible = "snps,g210-tc-6.00-40bit",
.data = &tc_dwc_g210_40bit_pltfm_hba_vops,
},
{ },
};
MODULE_DEVICE_TABLE(of, tc_dwc_g210_pltfm_match);
/**
* tc_dwc_g210_pltfm_probe()
* @pdev: pointer to platform device structure
*
*/
static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev)
{
int err;
const struct of_device_id *of_id;
struct ufs_hba_variant_ops *vops;
struct device *dev = &pdev->dev;
of_id = of_match_node(tc_dwc_g210_pltfm_match, dev->of_node);
vops = (struct ufs_hba_variant_ops *)of_id->data;
/* Perform generic probe */
err = ufshcd_pltfrm_init(pdev, vops);
if (err)
dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
return err;
}
/**
* tc_dwc_g210_pltfm_remove()
* @pdev: pointer to platform device structure
*
*/
static int tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
{
struct ufs_hba *hba = platform_get_drvdata(pdev);
pm_runtime_get_sync(&(pdev)->dev);
ufshcd_remove(hba);
return 0;
}
static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
.suspend = ufshcd_pltfrm_suspend,
.resume = ufshcd_pltfrm_resume,
.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
.runtime_resume = ufshcd_pltfrm_runtime_resume,
.runtime_idle = ufshcd_pltfrm_runtime_idle,
};
static struct platform_driver tc_dwc_g210_pltfm_driver = {
.probe = tc_dwc_g210_pltfm_probe,
.remove = tc_dwc_g210_pltfm_remove,
.shutdown = ufshcd_pltfrm_shutdown,
.driver = {
.name = "tc-dwc-g210-pltfm",
.pm = &tc_dwc_g210_pltfm_pm_ops,
.of_match_table = of_match_ptr(tc_dwc_g210_pltfm_match),
},
};
module_platform_driver(tc_dwc_g210_pltfm_driver);
MODULE_ALIAS("platform:tc-dwc-g210-pltfm");
MODULE_DESCRIPTION("Synopsys Test Chip G210 platform glue driver");
MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
MODULE_LICENSE("Dual BSD/GPL");
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