Merge tag 'v5.15-rc2' into spi-5.15
[platform/kernel/linux-starfive.git] / drivers / net / wireless / marvell / mwifiex / pcie_quirks.c
1 /*
2  * NXP Wireless LAN device driver: PCIE and platform specific quirks
3  *
4  * This software file (the "File") is distributed by NXP
5  * under the terms of the GNU General Public License Version 2, June 1991
6  * (the "License").  You may use, redistribute and/or modify this File in
7  * accordance with the terms and conditions of the License, a copy of which
8  * is available by writing to the Free Software Foundation, Inc.,
9  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
10  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
11  *
12  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
13  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
14  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
15  * this warranty disclaimer.
16  */
17
18 #include <linux/dmi.h>
19
20 #include "pcie_quirks.h"
21
22 /* quirk table based on DMI matching */
23 static const struct dmi_system_id mwifiex_quirk_table[] = {
24         {
25                 .ident = "Surface Pro 4",
26                 .matches = {
27                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
28                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 4"),
29                 },
30                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
31         },
32         {
33                 .ident = "Surface Pro 5",
34                 .matches = {
35                         /* match for SKU here due to generic product name "Surface Pro" */
36                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
37                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1796"),
38                 },
39                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
40         },
41         {
42                 .ident = "Surface Pro 5 (LTE)",
43                 .matches = {
44                         /* match for SKU here due to generic product name "Surface Pro" */
45                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
46                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1807"),
47                 },
48                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
49         },
50         {
51                 .ident = "Surface Pro 6",
52                 .matches = {
53                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
54                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 6"),
55                 },
56                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
57         },
58         {
59                 .ident = "Surface Book 1",
60                 .matches = {
61                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
62                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book"),
63                 },
64                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
65         },
66         {
67                 .ident = "Surface Book 2",
68                 .matches = {
69                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
70                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book 2"),
71                 },
72                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
73         },
74         {
75                 .ident = "Surface Laptop 1",
76                 .matches = {
77                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
78                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop"),
79                 },
80                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
81         },
82         {
83                 .ident = "Surface Laptop 2",
84                 .matches = {
85                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
86                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop 2"),
87                 },
88                 .driver_data = (void *)QUIRK_FW_RST_D3COLD,
89         },
90         {}
91 };
92
93 void mwifiex_initialize_quirks(struct pcie_service_card *card)
94 {
95         struct pci_dev *pdev = card->dev;
96         const struct dmi_system_id *dmi_id;
97
98         dmi_id = dmi_first_match(mwifiex_quirk_table);
99         if (dmi_id)
100                 card->quirks = (uintptr_t)dmi_id->driver_data;
101
102         if (!card->quirks)
103                 dev_info(&pdev->dev, "no quirks enabled\n");
104         if (card->quirks & QUIRK_FW_RST_D3COLD)
105                 dev_info(&pdev->dev, "quirk reset_d3cold enabled\n");
106 }
107
108 static void mwifiex_pcie_set_power_d3cold(struct pci_dev *pdev)
109 {
110         dev_info(&pdev->dev, "putting into D3cold...\n");
111
112         pci_save_state(pdev);
113         if (pci_is_enabled(pdev))
114                 pci_disable_device(pdev);
115         pci_set_power_state(pdev, PCI_D3cold);
116 }
117
118 static int mwifiex_pcie_set_power_d0(struct pci_dev *pdev)
119 {
120         int ret;
121
122         dev_info(&pdev->dev, "putting into D0...\n");
123
124         pci_set_power_state(pdev, PCI_D0);
125         ret = pci_enable_device(pdev);
126         if (ret) {
127                 dev_err(&pdev->dev, "pci_enable_device failed\n");
128                 return ret;
129         }
130         pci_restore_state(pdev);
131
132         return 0;
133 }
134
135 int mwifiex_pcie_reset_d3cold_quirk(struct pci_dev *pdev)
136 {
137         struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
138         int ret;
139
140         /* Power-cycle (put into D3cold then D0) */
141         dev_info(&pdev->dev, "Using reset_d3cold quirk to perform FW reset\n");
142
143         /* We need to perform power-cycle also for bridge of wifi because
144          * on some devices (e.g. Surface Book 1), the OS for some reasons
145          * can't know the real power state of the bridge.
146          * When tried to power-cycle only wifi, the reset failed with the
147          * following dmesg log:
148          * "Cannot transition to power state D0 for parent in D3hot".
149          */
150         mwifiex_pcie_set_power_d3cold(pdev);
151         mwifiex_pcie_set_power_d3cold(parent_pdev);
152
153         ret = mwifiex_pcie_set_power_d0(parent_pdev);
154         if (ret)
155                 return ret;
156         ret = mwifiex_pcie_set_power_d0(pdev);
157         if (ret)
158                 return ret;
159
160         return 0;
161 }