git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 8425f5c8f04dbcf11ade78f984a494fc0b90e7a0 Mon Sep 17 00:00:00 2001
   2 From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
   3 Date: Tue, 4 Feb 2025 20:36:56 +0200
   4 Subject: [PATCH] wifi: rtw88: Fix __rtw_download_firmware() for RTL8814AU
   5
   6 Don't call ltecoex_read_reg() and ltecoex_reg_write() when the
   7 ltecoex_addr member of struct rtw_chip_info is NULL. The RTL8814AU
   8 doesn't have this feature.
   9
  10 Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
  11 Acked-by: Ping-Ke Shih <pkshih@realtek.com>
  12 Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
  13 Link: https://patch.msgid.link/55b5641f-094e-4f94-9f79-ac053733f2cf@gmail.com
  14 ---
  15  drivers/net/wireless/realtek/rtw88/mac.c | 6 ++++--
  16  1 file changed, 4 insertions(+), 2 deletions(-)
  17
  18 --- a/drivers/net/wireless/realtek/rtw88/mac.c
  19 +++ b/drivers/net/wireless/realtek/rtw88/mac.c
  20 @@ -784,7 +784,8 @@ static int __rtw_download_firmware(struc
  21         if (!check_firmware_size(data, size))
  22                 return -EINVAL;
  23
  24 -       if (!ltecoex_read_reg(rtwdev, 0x38, &ltecoex_bckp))
  25 +       if (rtwdev->chip->ltecoex_addr &&
  26 +           !ltecoex_read_reg(rtwdev, 0x38, &ltecoex_bckp))
  27                 return -EBUSY;
  28
  29         wlan_cpu_enable(rtwdev, false);
  30 @@ -802,7 +803,8 @@ static int __rtw_download_firmware(struc
  31
  32         wlan_cpu_enable(rtwdev, true);
  33
  34 -       if (!ltecoex_reg_write(rtwdev, 0x38, ltecoex_bckp)) {
  35 +       if (rtwdev->chip->ltecoex_addr &&
  36 +           !ltecoex_reg_write(rtwdev, 0x38, ltecoex_bckp)) {
  37                 ret = -EBUSY;
  38                 goto dlfw_fail;
  39         }