diff --git a/patch/kernel/archive/rockchip-6.18/patches.armbian/wifi-fix-driver-rtw88.patch b/patch/kernel/archive/rockchip-6.18/patches.armbian/wifi-fix-driver-rtw88.patch new file mode 100644 index 000000000..d9dd2c44f --- /dev/null +++ b/patch/kernel/archive/rockchip-6.18/patches.armbian/wifi-fix-driver-rtw88.patch @@ -0,0 +1,44 @@ +From f3ccdfda345ca9a624ea425840a926b8338c1e25 Mon Sep 17 00:00:00 2001 +From: Ping-Ke Shih +Date: Tue, 25 Nov 2025 09:38:49 +0800 +Subject: [PATCH] wifi: rtw88: limit indirect IO under powered off for + RTL8822CS + +The indirect IO is necessary for RTL8822CS, but not necessary for other +chips. Otherwiese, it throws errors and becomes unusable. + + rtw88_8723cs mmc1:0001:1: WOW Firmware version 11.0.0, H2C version 0 + rtw88_8723cs mmc1:0001:1: Firmware version 11.0.0, H2C version 0 + rtw88_8723cs mmc1:0001:1: sdio read32 failed (0xf0): -110 + rtw88_8723cs mmc1:0001:1: sdio write8 failed (0x1c): -110 + rtw88_8723cs mmc1:0001:1: sdio read32 failed (0xf0): -110 + +By vendor driver, only RTL8822CS and RTL8822ES need indirect IO, but +RTL8822ES isn't supported yet. Therefore, limit it to RTL8822CS only. + +Reported-by: Andrey Skvortsov +Closes: https://lore.kernel.org/linux-wireless/07a32e2d6c764eb1bd9415b5a921a652@realtek.com/T/#m997b4522f7209ba629561c776bfd1d13ab24c1d4 +Fixes: 58de1f91e033 ("wifi: rtw88: sdio: use indirect IO for device registers before power-on") +Signed-off-by: Ping-Ke Shih +Tested-by: Andrey Skvortsov +Link: https://patch.msgid.link/1764034729-1251-1-git-send-email-pkshih@realtek.com +--- + drivers/net/wireless/realtek/rtw88/sdio.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/drivers/net/wireless/realtek/rtw88/sdio.c b/drivers/net/wireless/realtek/rtw88/sdio.c +index 99d7c629eac6fb..e35de52d8eb430 100644 +--- a/drivers/net/wireless/realtek/rtw88/sdio.c ++++ b/drivers/net/wireless/realtek/rtw88/sdio.c +@@ -144,8 +144,10 @@ static u32 rtw_sdio_to_io_address(struct rtw_dev *rtwdev, u32 addr, + + static bool rtw_sdio_use_direct_io(struct rtw_dev *rtwdev, u32 addr) + { ++ bool might_indirect_under_power_off = rtwdev->chip->id == RTW_CHIP_TYPE_8822C; ++ + if (!test_bit(RTW_FLAG_POWERON, rtwdev->flags) && +- !rtw_sdio_is_bus_addr(addr)) ++ !rtw_sdio_is_bus_addr(addr) && might_indirect_under_power_off) + return false; + + return !rtw_sdio_is_sdio30_supported(rtwdev) || diff --git a/patch/kernel/archive/rockchip-6.18/series.conf b/patch/kernel/archive/rockchip-6.18/series.conf index a89beb41f..eb45fd26b 100644 --- a/patch/kernel/archive/rockchip-6.18/series.conf +++ b/patch/kernel/archive/rockchip-6.18/series.conf @@ -170,3 +170,4 @@ patches.armbian/wifi-driver-esp8089.patch patches.armbian/wifi-driver-esp8089-6.18.patch patches.armbian/wifi-driver-ssv6051.patch + patches.armbian/wifi-fix-driver-rtw88.patch