From: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
Driver Could fail to reset counter if rx clock gating is not disabled.
So we need to disable rx clock gating before resetting counters.
Otherwise counters may increase unexpected.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/rtw8822c.c | 4 ++++
drivers/net/wireless/realtek/rtw88/rtw8822c.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 86acf60..b9185b2 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -1508,8 +1508,12 @@ static void rtw8822c_false_alarm_statistics(struct rtw_dev *rtwdev)
rtw_write32_mask(rtwdev, REG_CCANRX, BIT_CCK_FA_RST, 2);
rtw_write32_mask(rtwdev, REG_CCANRX, BIT_OFDM_FA_RST, 0);
rtw_write32_mask(rtwdev, REG_CCANRX, BIT_OFDM_FA_RST, 2);
+
+ /* disable rx clk gating to reset counters */
+ rtw_write32_clr(rtwdev, REG_RX_BREAK, BIT_COM_RX_GCK_EN);
rtw_write32_set(rtwdev, REG_CNT_CTRL, BIT_ALL_CNT_RST);
rtw_write32_clr(rtwdev, REG_CNT_CTRL, BIT_ALL_CNT_RST);
+ rtw_write32_set(rtwdev, REG_RX_BREAK, BIT_COM_RX_GCK_EN);
}
static void rtw8822c_do_iqk(struct rtw_dev *rtwdev)
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.h b/drivers/net/wireless/realtek/rtw88/rtw8822c.h
index 5fe6acb..bf41359 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.h
@@ -176,6 +176,8 @@ struct rtw8822c_efuse {
#define BIT_CCK_BLK_EN BIT(1)
#define BIT_CCK_OFDM_BLK_EN (BIT(0) | BIT(1))
#define REG_CCAMSK 0x1c80
+#define REG_RX_BREAK 0x1d2c
+#define BIT_COM_RX_GCK_EN BIT(31)
#define REG_RXFNCTL 0x1d30
#define REG_RXIGI 0x1d70
#define REG_ENFN 0x1e24
--
2.7.4
