1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Synopsys G210 Test Chip driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Authors: Joao Pinto <jpinto@synopsys.com>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/kernel.h>
11*4882a593Smuzhiyun #include <linux/module.h>
12*4882a593Smuzhiyun #include <linux/platform_device.h>
13*4882a593Smuzhiyun #include <linux/of.h>
14*4882a593Smuzhiyun #include <linux/delay.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "ufshcd-pltfrm.h"
17*4882a593Smuzhiyun #include "ufshcd-dwc.h"
18*4882a593Smuzhiyun #include "tc-dwc-g210.h"
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun /*
21*4882a593Smuzhiyun * UFS DWC specific variant operations
22*4882a593Smuzhiyun */
23*4882a593Smuzhiyun static struct ufs_hba_variant_ops tc_dwc_g210_20bit_pltfm_hba_vops = {
24*4882a593Smuzhiyun .name = "tc-dwc-g210-pltfm",
25*4882a593Smuzhiyun .link_startup_notify = ufshcd_dwc_link_startup_notify,
26*4882a593Smuzhiyun .phy_initialization = tc_dwc_g210_config_20_bit,
27*4882a593Smuzhiyun };
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun static struct ufs_hba_variant_ops tc_dwc_g210_40bit_pltfm_hba_vops = {
30*4882a593Smuzhiyun .name = "tc-dwc-g210-pltfm",
31*4882a593Smuzhiyun .link_startup_notify = ufshcd_dwc_link_startup_notify,
32*4882a593Smuzhiyun .phy_initialization = tc_dwc_g210_config_40_bit,
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun static const struct of_device_id tc_dwc_g210_pltfm_match[] = {
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun .compatible = "snps,g210-tc-6.00-20bit",
38*4882a593Smuzhiyun .data = &tc_dwc_g210_20bit_pltfm_hba_vops,
39*4882a593Smuzhiyun },
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun .compatible = "snps,g210-tc-6.00-40bit",
42*4882a593Smuzhiyun .data = &tc_dwc_g210_40bit_pltfm_hba_vops,
43*4882a593Smuzhiyun },
44*4882a593Smuzhiyun { },
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, tc_dwc_g210_pltfm_match);
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun /**
49*4882a593Smuzhiyun * tc_dwc_g210_pltfm_probe()
50*4882a593Smuzhiyun * @pdev: pointer to platform device structure
51*4882a593Smuzhiyun *
52*4882a593Smuzhiyun */
tc_dwc_g210_pltfm_probe(struct platform_device * pdev)53*4882a593Smuzhiyun static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev)
54*4882a593Smuzhiyun {
55*4882a593Smuzhiyun int err;
56*4882a593Smuzhiyun const struct of_device_id *of_id;
57*4882a593Smuzhiyun struct ufs_hba_variant_ops *vops;
58*4882a593Smuzhiyun struct device *dev = &pdev->dev;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun of_id = of_match_node(tc_dwc_g210_pltfm_match, dev->of_node);
61*4882a593Smuzhiyun vops = (struct ufs_hba_variant_ops *)of_id->data;
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun /* Perform generic probe */
64*4882a593Smuzhiyun err = ufshcd_pltfrm_init(pdev, vops);
65*4882a593Smuzhiyun if (err)
66*4882a593Smuzhiyun dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun return err;
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun /**
72*4882a593Smuzhiyun * tc_dwc_g210_pltfm_remove()
73*4882a593Smuzhiyun * @pdev: pointer to platform device structure
74*4882a593Smuzhiyun *
75*4882a593Smuzhiyun */
tc_dwc_g210_pltfm_remove(struct platform_device * pdev)76*4882a593Smuzhiyun static int tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun struct ufs_hba *hba = platform_get_drvdata(pdev);
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun pm_runtime_get_sync(&(pdev)->dev);
81*4882a593Smuzhiyun ufshcd_remove(hba);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun return 0;
84*4882a593Smuzhiyun }
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
87*4882a593Smuzhiyun .suspend = ufshcd_pltfrm_suspend,
88*4882a593Smuzhiyun .resume = ufshcd_pltfrm_resume,
89*4882a593Smuzhiyun .runtime_suspend = ufshcd_pltfrm_runtime_suspend,
90*4882a593Smuzhiyun .runtime_resume = ufshcd_pltfrm_runtime_resume,
91*4882a593Smuzhiyun .runtime_idle = ufshcd_pltfrm_runtime_idle,
92*4882a593Smuzhiyun };
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun static struct platform_driver tc_dwc_g210_pltfm_driver = {
95*4882a593Smuzhiyun .probe = tc_dwc_g210_pltfm_probe,
96*4882a593Smuzhiyun .remove = tc_dwc_g210_pltfm_remove,
97*4882a593Smuzhiyun .shutdown = ufshcd_pltfrm_shutdown,
98*4882a593Smuzhiyun .driver = {
99*4882a593Smuzhiyun .name = "tc-dwc-g210-pltfm",
100*4882a593Smuzhiyun .pm = &tc_dwc_g210_pltfm_pm_ops,
101*4882a593Smuzhiyun .of_match_table = of_match_ptr(tc_dwc_g210_pltfm_match),
102*4882a593Smuzhiyun },
103*4882a593Smuzhiyun };
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun module_platform_driver(tc_dwc_g210_pltfm_driver);
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun MODULE_ALIAS("platform:tc-dwc-g210-pltfm");
108*4882a593Smuzhiyun MODULE_DESCRIPTION("Synopsys Test Chip G210 platform glue driver");
109*4882a593Smuzhiyun MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
110*4882a593Smuzhiyun MODULE_LICENSE("Dual BSD/GPL");
111