r8152: fix the RX FIFO settings when suspending

The RX FIFO would be changed when suspending, so the related settings
have to be modified, too. Otherwise, the flow control would work
abnormally.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216333
Reported-by: Mark Blakeney <mark.blakeney@bullet-systems.net>
Fixes: cdf0b86b250f ("r8152: fix a WOL issue")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 46c7954..d142ac8 100644 (file)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -5906,6 +5906,11 @@ static void r8153_enter_oob(struct r8152 *tp)
        ocp_data &= ~NOW_IS_OOB;
        ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
 
+       /* RX FIFO settings for OOB */
+       ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
+
        rtl_disable(tp);
        rtl_reset_bmu(tp);
 
@@ -6544,6 +6549,11 @@ static void rtl8156_down(struct r8152 *tp)
        ocp_data &= ~NOW_IS_OOB;
        ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
 
+       /* RX FIFO settings for OOB */
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_FULL, 64 / 16);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, 1024 / 16);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, 4096 / 16);
+
        rtl_disable(tp);
        rtl_reset_bmu(tp);