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1 From 88ca89202f8e8afb5225eb5244d79cd67c15d744 Mon Sep 17 00:00:00 2001
2 From: Wen Gong <quic_wgong@quicinc.com>
3 Date: Fri, 26 May 2023 12:41:06 +0300
4 Subject: [PATCH] wifi: ath11k: add support default regdb while searching
5 board-2.bin for WCN6855
6
7 Sometimes board-2.bin does not have the regdb data which matched the
8 parameters such as vendor, device, subsystem-vendor, subsystem-device
9 and etc. Add default regdb data with 'bus=%s' into board-2.bin for
10 WCN6855, then ath11k use 'bus=pci' to search regdb data in board-2.bin
11 for WCN6855.
12
13 kernel: [ 122.515808] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
14 kernel: [ 122.517240] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
15 kernel: [ 122.517280] ath11k_pci 0000:03:00.0: failed to fetch regdb data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262 from ath11k/WCN6855/hw2.0/board-2.bin
16 kernel: [ 122.517464] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci'
17 kernel: [ 122.518901] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
18 kernel: [ 122.518915] ath11k_pci 0000:03:00.0: board name
19 kernel: [ 122.518917] ath11k_pci 0000:03:00.0: 00000000: 62 75 73 3d 70 63 69 bus=pci
20 kernel: [ 122.518918] ath11k_pci 0000:03:00.0: boot found match regdb data for name 'bus=pci'
21 kernel: [ 122.518920] ath11k_pci 0000:03:00.0: boot found regdb data for 'bus=pci'
22 kernel: [ 122.518921] ath11k_pci 0000:03:00.0: fetched regdb
23
24 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
25
26 Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
27 Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
28 Link: https://lore.kernel.org/r/20230517133959.8224-1-quic_wgong@quicinc.com
29 ---
30 drivers/net/wireless/ath/ath11k/core.c | 53 +++++++++++++++++++-------
31 1 file changed, 40 insertions(+), 13 deletions(-)
32
33 --- a/drivers/net/wireless/ath/ath11k/core.c
34 +++ b/drivers/net/wireless/ath/ath11k/core.c
35 @@ -961,7 +961,8 @@ int ath11k_core_check_dt(struct ath11k_b
36 }
37
38 static int __ath11k_core_create_board_name(struct ath11k_base *ab, char *name,
39 - size_t name_len, bool with_variant)
40 + size_t name_len, bool with_variant,
41 + bool bus_type_mode)
42 {
43 /* strlen(',variant=') + strlen(ab->qmi.target.bdf_ext) */
44 char variant[9 + ATH11K_QMI_BDF_EXT_STR_LENGTH] = { 0 };
45 @@ -972,15 +973,20 @@ static int __ath11k_core_create_board_na
46
47 switch (ab->id.bdf_search) {
48 case ATH11K_BDF_SEARCH_BUS_AND_BOARD:
49 - scnprintf(name, name_len,
50 - "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s",
51 - ath11k_bus_str(ab->hif.bus),
52 - ab->id.vendor, ab->id.device,
53 - ab->id.subsystem_vendor,
54 - ab->id.subsystem_device,
55 - ab->qmi.target.chip_id,
56 - ab->qmi.target.board_id,
57 - variant);
58 + if (bus_type_mode)
59 + scnprintf(name, name_len,
60 + "bus=%s",
61 + ath11k_bus_str(ab->hif.bus));
62 + else
63 + scnprintf(name, name_len,
64 + "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s",
65 + ath11k_bus_str(ab->hif.bus),
66 + ab->id.vendor, ab->id.device,
67 + ab->id.subsystem_vendor,
68 + ab->id.subsystem_device,
69 + ab->qmi.target.chip_id,
70 + ab->qmi.target.board_id,
71 + variant);
72 break;
73 default:
74 scnprintf(name, name_len,
75 @@ -999,13 +1005,19 @@ static int __ath11k_core_create_board_na
76 static int ath11k_core_create_board_name(struct ath11k_base *ab, char *name,
77 size_t name_len)
78 {
79 - return __ath11k_core_create_board_name(ab, name, name_len, true);
80 + return __ath11k_core_create_board_name(ab, name, name_len, true, false);
81 }
82
83 static int ath11k_core_create_fallback_board_name(struct ath11k_base *ab, char *name,
84 size_t name_len)
85 {
86 - return __ath11k_core_create_board_name(ab, name, name_len, false);
87 + return __ath11k_core_create_board_name(ab, name, name_len, false, false);
88 +}
89 +
90 +static int ath11k_core_create_bus_type_board_name(struct ath11k_base *ab, char *name,
91 + size_t name_len)
92 +{
93 + return __ath11k_core_create_board_name(ab, name, name_len, false, true);
94 }
95
96 const struct firmware *ath11k_core_firmware_request(struct ath11k_base *ab,
97 @@ -1309,7 +1321,7 @@ success:
98
99 int ath11k_core_fetch_regdb(struct ath11k_base *ab, struct ath11k_board_data *bd)
100 {
101 - char boardname[BOARD_NAME_SIZE];
102 + char boardname[BOARD_NAME_SIZE], default_boardname[BOARD_NAME_SIZE];
103 int ret;
104
105 ret = ath11k_core_create_board_name(ab, boardname, BOARD_NAME_SIZE);
106 @@ -1323,6 +1335,21 @@ int ath11k_core_fetch_regdb(struct ath11
107 ATH11K_BD_IE_REGDB,
108 ATH11K_BD_IE_REGDB_NAME,
109 ATH11K_BD_IE_REGDB_DATA);
110 + if (!ret)
111 + goto exit;
112 +
113 + ret = ath11k_core_create_bus_type_board_name(ab, default_boardname,
114 + BOARD_NAME_SIZE);
115 + if (ret) {
116 + ath11k_dbg(ab, ATH11K_DBG_BOOT,
117 + "failed to create default board name for regdb: %d", ret);
118 + goto exit;
119 + }
120 +
121 + ret = ath11k_core_fetch_board_data_api_n(ab, bd, default_boardname,
122 + ATH11K_BD_IE_REGDB,
123 + ATH11K_BD_IE_REGDB_NAME,
124 + ATH11K_BD_IE_REGDB_DATA);
125 if (!ret)
126 goto exit;
127
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