netdev - [PATCH net-next 2/4] r8169: add helper rtl_enable

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Date:   Fri, 8 May 2020 23:30:43 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 2/4] r8169: add helper rtl_enable_rxdvgate

Add a helper for setting RXDV_GATED_EN, the 2ms delay is copied from
the vendor driver.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 1c96fc219..eb26c3477 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2496,6 +2496,12 @@ DECLARE_RTL_COND(rtl_txcfg_empty_cond)
 	return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
 }
 
+static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
+{
+	RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
+	fsleep(2000);
+}
+
 static void rtl8169_hw_reset(struct rtl8169_private *tp)
 {
 	/* Disable interrupts */
@@ -5133,7 +5139,7 @@ static int r8169_mdio_register(struct rtl8169_private *tp)
 
 static void rtl_hw_init_8168g(struct rtl8169_private *tp)
 {
-	RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
+	rtl_enable_rxdvgate(tp);
 
 	if (!rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42))
 		return;
@@ -5154,7 +5160,7 @@ static void rtl_hw_init_8168g(struct rtl8169_private *tp)
 
 static void rtl_hw_init_8125(struct rtl8169_private *tp)
 {
-	RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
+	rtl_enable_rxdvgate(tp);
 
 	if (!rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42))
 		return;
-- 
2.26.2