[openwrt/openwrt] mac80211: ath12k: support fetching regdb from board-2.bin

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/c1acef2e0cb2fcaf1ee72dbf737f6017ddb1159e

commit c1acef2e0cb2fcaf1ee72dbf737f6017ddb1159e
Author: Mantas Pucka <mantas at 8devices.com>
AuthorDate: Thu Mar 27 17:28:46 2025 +0200

    mac80211: ath12k: support fetching regdb from board-2.bin
    
    In board-2.bin available at linux-firmare regdb is stored with
    board-id=255. This change is needed to properly use it.
    
    Signed-off-by: Mantas Pucka <mantas at 8devices.com>
    Link: https://github.com/openwrt/openwrt/pull/18459
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 ...12k-Fetch-regdb.bin-file-from-board-2.bin.patch | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/package/kernel/mac80211/patches/ath12k/002-wifi-ath12k-Fetch-regdb.bin-file-from-board-2.bin.patch b/package/kernel/mac80211/patches/ath12k/002-wifi-ath12k-Fetch-regdb.bin-file-from-board-2.bin.patch
new file mode 100644
index 0000000000..67d62f9257
--- /dev/null
+++ b/package/kernel/mac80211/patches/ath12k/002-wifi-ath12k-Fetch-regdb.bin-file-from-board-2.bin.patch
@@ -0,0 +1,67 @@
+From 24f587572acf7509127dbdfcbf1b681ef84eeba0 Mon Sep 17 00:00:00 2001
+From: Aaradhana Sahu <quic_aarasahu at quicinc.com>
+Date: Thu, 16 Jan 2025 08:58:35 +0530
+Subject: [PATCH] wifi: ath12k: Fetch regdb.bin file from board-2.bin
+
+Currently, ath12k_core_fetch_regdb() finds regdb.bin file through
+board id's but in board-2.bin file regdb.bin file is present with
+default board id because of which regdb.bin is not fetched.
+
+Add support to fetch regdb.bin file from board-2.bin through
+default board id.
+
+Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
+
+Signed-off-by: Aaradhana Sahu <quic_aarasahu at quicinc.com>
+Reviewed-by: Aditya Kumar Singh <quic_adisi at quicinc.com>
+Link: https://patch.msgid.link/20250116032835.118397-1-quic_aarasahu@quicinc.com
+Signed-off-by: Jeff Johnson <jeff.johnson at oss.qualcomm.com>
+---
+ drivers/net/wireless/ath/ath12k/core.c | 12 +++++++-----
+ 1 file changed, 7 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/wireless/ath/ath12k/core.c
++++ b/drivers/net/wireless/ath/ath12k/core.c
+@@ -161,7 +161,7 @@ EXPORT_SYMBOL(ath12k_core_resume);
+ 
+ static int __ath12k_core_create_board_name(struct ath12k_base *ab, char *name,
+ 					   size_t name_len, bool with_variant,
+-					   bool bus_type_mode)
++					   bool bus_type_mode, bool with_default)
+ {
+ 	/* strlen(',variant=') + strlen(ab->qmi.target.bdf_ext) */
+ 	char variant[9 + ATH12K_QMI_BDF_EXT_STR_LENGTH] = { 0 };
+@@ -192,7 +192,9 @@ static int __ath12k_core_create_board_na
+ 			  "bus=%s,qmi-chip-id=%d,qmi-board-id=%d%s",
+ 			  ath12k_bus_str(ab->hif.bus),
+ 			  ab->qmi.target.chip_id,
+-			  ab->qmi.target.board_id, variant);
++			  with_default ?
++			  ATH12K_BOARD_ID_DEFAULT : ab->qmi.target.board_id,
++			  variant);
+ 		break;
+ 	}
+ 
+@@ -204,19 +206,19 @@ static int __ath12k_core_create_board_na
+ static int ath12k_core_create_board_name(struct ath12k_base *ab, char *name,
+ 					 size_t name_len)
+ {
+-	return __ath12k_core_create_board_name(ab, name, name_len, true, false);
++	return __ath12k_core_create_board_name(ab, name, name_len, true, false, false);
+ }
+ 
+ static int ath12k_core_create_fallback_board_name(struct ath12k_base *ab, char *name,
+ 						  size_t name_len)
+ {
+-	return __ath12k_core_create_board_name(ab, name, name_len, false, false);
++	return __ath12k_core_create_board_name(ab, name, name_len, false, false, true);
+ }
+ 
+ static int ath12k_core_create_bus_type_board_name(struct ath12k_base *ab, char *name,
+ 						  size_t name_len)
+ {
+-	return __ath12k_core_create_board_name(ab, name, name_len, false, true);
++	return __ath12k_core_create_board_name(ab, name, name_len, false, true, true);
+ }
+ 
+ const struct firmware *ath12k_core_firmware_request(struct ath12k_base *ab,