From b75d612014447e04abdf0e37ffb8f2fd8b0b49d6 Mon Sep 17 00:00:00 2001
From: Hayes Wang <hayeswang@realtek.com>
Date: Thu, 18 Aug 2022 16:06:20 +0800
Subject: [PATCH] r8152: fix the RX FIFO settings when suspending
Git-commit: b75d612014447e04abdf0e37ffb8f2fd8b0b49d6
Patch-mainline: v6.0-rc3
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/usb/r8152.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 46c7954d2762..d142ac8fcf6e 100644
--- 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);
--
2.35.3