net: ks8851: Permit overridding interrupt enable register

The parallel bus variant does not need to use the TX interrupt at all
as it writes the TX FIFO directly with in .ndo_start_xmit, permit the
drivers to configure the interrupt enable bits.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/micrel/ks8851.c

@@ -859,17 +859,8 @@ static int ks8851_net_open(struct net_device *dev)
 	ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
 
 	/* clear then enable interrupts */
-
-#define STD_IRQ (IRQ_LCI |	/* Link Change */	\
-		 IRQ_TXI |	/* TX done */		\
-		 IRQ_RXI |	/* RX done */		\
-		 IRQ_SPIBEI |	/* SPI bus error */	\
-		 IRQ_TXPSI |	/* TX process stop */	\
-		 IRQ_RXPSI)	/* RX process stop */
-
-	ks->rc_ier = STD_IRQ;
-	ks8851_wrreg16(ks, KS_ISR, STD_IRQ);
-	ks8851_wrreg16(ks, KS_IER, STD_IRQ);
+	ks8851_wrreg16(ks, KS_ISR, ks->rc_ier);
+	ks8851_wrreg16(ks, KS_IER, ks->rc_ier);
 
 	netif_start_queue(ks->netdev);
 
@@ -1599,6 +1590,15 @@ static int ks8851_probe(struct spi_device *spi)
 	spi->bits_per_word = 8;
 
 	ks = netdev_priv(netdev);
+
+#define STD_IRQ (IRQ_LCI |	/* Link Change */	\
+		 IRQ_TXI |	/* TX done */		\
+		 IRQ_RXI |	/* RX done */		\
+		 IRQ_SPIBEI |	/* SPI bus error */	\
+		 IRQ_TXPSI |	/* TX process stop */	\
+		 IRQ_RXPSI)	/* RX process stop */
+	ks->rc_ier = STD_IRQ;
+
 	kss = to_ks8851_spi(ks);
 
 	kss->spidev = spi;