wifi: rtw89: mac: define DMA channel mask to avoid unsupported channels
Six channels are unsupported by 8852b, so mask them out to prevent to
access undefined registers in this chip.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220927062611.30484-3-pkshih@realtek.com
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
new file mode 100644
index 0000000..f951b8f
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) 2019-2022 Realtek Corporation
+ */
+
+#include "core.h"
+
+const struct rtw89_chip_info rtw8852b_chip_info = {
+ .chip_id = RTL8852B,
+ .dma_ch_mask = BIT(RTW89_DMA_ACH4) | BIT(RTW89_DMA_ACH5) |
+ BIT(RTW89_DMA_ACH6) | BIT(RTW89_DMA_ACH7) |
+ BIT(RTW89_DMA_B1MG) | BIT(RTW89_DMA_B1HI),
+};
+EXPORT_SYMBOL(rtw8852b_chip_info);
+
+MODULE_FIRMWARE("rtw89/rtw8852b_fw.bin");
+MODULE_AUTHOR("Realtek Corporation");
+MODULE_DESCRIPTION("Realtek 802.11ax wireless 8852B driver");
+MODULE_LICENSE("Dual BSD/GPL");
