[PATCH v2 1/2] rtl8xxxu: add enumeration for channel bandwidth

[Chris Chiu <chiu@endlessm.com>]

There's a data field in H2C and C2H commands which is used to
carry channel bandwidth information. Add enumeration to make it
more descriptive in code.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
---

Note:
  v2: no change

 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h      | 9 +++++++++
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
index 6598c8d786ea..86d1d50511a8 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -1133,6 +1133,15 @@ enum bt_mp_oper_opcode_8723b {
 	BT_MP_OP_ENABLE_CFO_TRACKING = 0x24,
 };
 
+enum rtl8xxxu_bw_mode {
+	RTL8XXXU_CHANNEL_WIDTH_20 = 0,
+	RTL8XXXU_CHANNEL_WIDTH_40 = 1,
+	RTL8XXXU_CHANNEL_WIDTH_80 = 2,
+	RTL8XXXU_CHANNEL_WIDTH_160 = 3,
+	RTL8XXXU_CHANNEL_WIDTH_80_80 = 4,
+	RTL8XXXU_CHANNEL_WIDTH_MAX = 5,
+};
+
 struct rtl8723bu_c2h {
 	u8 id;
 	u8 seq;
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index daa6ce14c68b..c334418cd7ae 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4328,7 +4328,7 @@ void rtl8xxxu_gen2_update_rate_mask(struct rtl8xxxu_priv *priv,
 				    u32 ramask, u8 rateid, int sgi)
 {
 	struct h2c_cmd h2c;
-	u8 bw = 0;
+	u8 bw = RTL8XXXU_CHANNEL_WIDTH_20;
 
 	memset(&h2c, 0, sizeof(struct h2c_cmd));
 
-- 
2.20.1