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rtw88: 8723de: adjust the LTR setting
authorChin-Yen Lee <timlee@realtek.com>
Wed, 13 Jan 2021 01:43:42 +0000 (09:43 +0800)
committerKalle Valo <kvalo@codeaurora.org>
Mon, 25 Jan 2021 14:41:10 +0000 (16:41 +0200)
The LTR mechanism enables PCIE Endpoints to report the service latency
requirements and CPU will enter appropriate sleep state to save power
based on the LTR value.

8723de provides two registers to config the LTR, and the original setting
is too short for CPU to ente sleep state. The patch adjust the LTR setting.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210113014342.3615-1-pkshih@realtek.com
drivers/net/wireless/realtek/rtw88/rtw8723d.c

index 9268ea8..3fdbaf7 100644 (file)
@@ -60,8 +60,8 @@ static const struct rtw_hw_reg rtw8723d_txagc[] = {
 #define WLAN_MAX_AGG_NR                0x0A
 #define WLAN_AMPDU_MAX_TIME    0x1C
 #define WLAN_ANT_SEL           0x82
-#define WLAN_LTR_IDLE_LAT      0x883C883C
-#define WLAN_LTR_ACT_LAT       0x880B880B
+#define WLAN_LTR_IDLE_LAT      0x90039003
+#define WLAN_LTR_ACT_LAT       0x883c883c
 #define WLAN_LTR_CTRL1         0xCB004010
 #define WLAN_LTR_CTRL2         0x01233425