rtw88: 8822c: disable rx clock gating before counter reset

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@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index be46a1b..22380b1 100644 (file)
--- 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 ef708ba..33125e7 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.h
@@ -177,6 +177,8 @@ 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