1dd11376bSBart Van Assche // SPDX-License-Identifier: GPL-2.0-only
2dd11376bSBart Van Assche /*
3dd11376bSBart Van Assche * Synopsys G210 Test Chip driver
4dd11376bSBart Van Assche *
5dd11376bSBart Van Assche * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
6dd11376bSBart Van Assche *
7dd11376bSBart Van Assche * Authors: Joao Pinto <jpinto@synopsys.com>
8dd11376bSBart Van Assche */
9dd11376bSBart Van Assche
10dd11376bSBart Van Assche #include <linux/kernel.h>
11dd11376bSBart Van Assche #include <linux/module.h>
12dd11376bSBart Van Assche #include <linux/platform_device.h>
13dd11376bSBart Van Assche #include <linux/of.h>
14dd11376bSBart Van Assche #include <linux/delay.h>
15dd11376bSBart Van Assche #include <linux/pm_runtime.h>
16dd11376bSBart Van Assche
17dd11376bSBart Van Assche #include "ufshcd-pltfrm.h"
18dd11376bSBart Van Assche #include "ufshcd-dwc.h"
19dd11376bSBart Van Assche #include "tc-dwc-g210.h"
20dd11376bSBart Van Assche
21dd11376bSBart Van Assche /*
22dd11376bSBart Van Assche * UFS DWC specific variant operations
23dd11376bSBart Van Assche */
24dd11376bSBart Van Assche static struct ufs_hba_variant_ops tc_dwc_g210_20bit_pltfm_hba_vops = {
25dd11376bSBart Van Assche .name = "tc-dwc-g210-pltfm",
26dd11376bSBart Van Assche .link_startup_notify = ufshcd_dwc_link_startup_notify,
27dd11376bSBart Van Assche .phy_initialization = tc_dwc_g210_config_20_bit,
28dd11376bSBart Van Assche };
29dd11376bSBart Van Assche
30dd11376bSBart Van Assche static struct ufs_hba_variant_ops tc_dwc_g210_40bit_pltfm_hba_vops = {
31dd11376bSBart Van Assche .name = "tc-dwc-g210-pltfm",
32dd11376bSBart Van Assche .link_startup_notify = ufshcd_dwc_link_startup_notify,
33dd11376bSBart Van Assche .phy_initialization = tc_dwc_g210_config_40_bit,
34dd11376bSBart Van Assche };
35dd11376bSBart Van Assche
36dd11376bSBart Van Assche static const struct of_device_id tc_dwc_g210_pltfm_match[] = {
37dd11376bSBart Van Assche {
38dd11376bSBart Van Assche .compatible = "snps,g210-tc-6.00-20bit",
39dd11376bSBart Van Assche .data = &tc_dwc_g210_20bit_pltfm_hba_vops,
40dd11376bSBart Van Assche },
41dd11376bSBart Van Assche {
42dd11376bSBart Van Assche .compatible = "snps,g210-tc-6.00-40bit",
43dd11376bSBart Van Assche .data = &tc_dwc_g210_40bit_pltfm_hba_vops,
44dd11376bSBart Van Assche },
45dd11376bSBart Van Assche { },
46dd11376bSBart Van Assche };
47dd11376bSBart Van Assche MODULE_DEVICE_TABLE(of, tc_dwc_g210_pltfm_match);
48dd11376bSBart Van Assche
49dd11376bSBart Van Assche /**
50dd11376bSBart Van Assche * tc_dwc_g210_pltfm_probe()
51dd11376bSBart Van Assche * @pdev: pointer to platform device structure
52dd11376bSBart Van Assche *
53dd11376bSBart Van Assche */
tc_dwc_g210_pltfm_probe(struct platform_device * pdev)54dd11376bSBart Van Assche static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev)
55dd11376bSBart Van Assche {
56dd11376bSBart Van Assche int err;
57dd11376bSBart Van Assche const struct of_device_id *of_id;
58dd11376bSBart Van Assche struct ufs_hba_variant_ops *vops;
59dd11376bSBart Van Assche struct device *dev = &pdev->dev;
60dd11376bSBart Van Assche
61dd11376bSBart Van Assche of_id = of_match_node(tc_dwc_g210_pltfm_match, dev->of_node);
62dd11376bSBart Van Assche vops = (struct ufs_hba_variant_ops *)of_id->data;
63dd11376bSBart Van Assche
64dd11376bSBart Van Assche /* Perform generic probe */
65dd11376bSBart Van Assche err = ufshcd_pltfrm_init(pdev, vops);
66dd11376bSBart Van Assche if (err)
67dd11376bSBart Van Assche dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
68dd11376bSBart Van Assche
69dd11376bSBart Van Assche return err;
70dd11376bSBart Van Assche }
71dd11376bSBart Van Assche
72dd11376bSBart Van Assche /**
73dd11376bSBart Van Assche * tc_dwc_g210_pltfm_remove()
74dd11376bSBart Van Assche * @pdev: pointer to platform device structure
75dd11376bSBart Van Assche *
76dd11376bSBart Van Assche */
tc_dwc_g210_pltfm_remove(struct platform_device * pdev)77*0842b761SUwe Kleine-König static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
78dd11376bSBart Van Assche {
79dd11376bSBart Van Assche struct ufs_hba *hba = platform_get_drvdata(pdev);
80dd11376bSBart Van Assche
81dd11376bSBart Van Assche pm_runtime_get_sync(&(pdev)->dev);
82dd11376bSBart Van Assche ufshcd_remove(hba);
83dd11376bSBart Van Assche }
84dd11376bSBart Van Assche
85dd11376bSBart Van Assche static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
86dd11376bSBart Van Assche SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
87dd11376bSBart Van Assche SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
88dd11376bSBart Van Assche };
89dd11376bSBart Van Assche
90dd11376bSBart Van Assche static struct platform_driver tc_dwc_g210_pltfm_driver = {
91dd11376bSBart Van Assche .probe = tc_dwc_g210_pltfm_probe,
92*0842b761SUwe Kleine-König .remove_new = tc_dwc_g210_pltfm_remove,
93dd11376bSBart Van Assche .driver = {
94dd11376bSBart Van Assche .name = "tc-dwc-g210-pltfm",
95dd11376bSBart Van Assche .pm = &tc_dwc_g210_pltfm_pm_ops,
96dd11376bSBart Van Assche .of_match_table = of_match_ptr(tc_dwc_g210_pltfm_match),
97dd11376bSBart Van Assche },
98dd11376bSBart Van Assche };
99dd11376bSBart Van Assche
100dd11376bSBart Van Assche module_platform_driver(tc_dwc_g210_pltfm_driver);
101dd11376bSBart Van Assche
102dd11376bSBart Van Assche MODULE_ALIAS("platform:tc-dwc-g210-pltfm");
103dd11376bSBart Van Assche MODULE_DESCRIPTION("Synopsys Test Chip G210 platform glue driver");
104dd11376bSBart Van Assche MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
105dd11376bSBart Van Assche MODULE_LICENSE("Dual BSD/GPL");
106