Quelle  tc-dwc-g210-pltfrm.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Synopsys G210 Test Chip driver
 *
 * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
 *
 * Authors: Joao Pinto <jpinto@synopsys.com>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/pm_runtime.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 void tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
{
 ufshcd_pltfrm_remove(pdev);
}

static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
 SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
 SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
};

static struct platform_driver tc_dwc_g210_pltfm_driver = {
 .probe  = tc_dwc_g210_pltfm_probe,
 .remove  = tc_dwc_g210_pltfm_remove,
 .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 ");
MODULE_LICENSE("Dual BSD/GPL");