net: dsa: sja1105: Export the sja1105_inhibit_tx function
This will be used to stop egress traffic in .phylink_mac_link_up.
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c
index d729a0f..d7ff742 100644
--- a/drivers/net/dsa/sja1105/sja1105_spi.c
+++ b/drivers/net/dsa/sja1105/sja1105_spi.c
@@ -285,20 +285,22 @@ static int sja1105_cold_reset(const struct sja1105_private *priv)
return priv->info->reset_cmd(priv, &reset);
}
-static int sja1105_inhibit_tx(const struct sja1105_private *priv,
- const unsigned long *port_bitmap)
+int sja1105_inhibit_tx(const struct sja1105_private *priv,
+ unsigned long port_bitmap, bool tx_inhibited)
{
const struct sja1105_regs *regs = priv->info->regs;
u64 inhibit_cmd;
- int port, rc;
+ int rc;
rc = sja1105_spi_send_int(priv, SPI_READ, regs->port_control,
&inhibit_cmd, SJA1105_SIZE_PORT_CTRL);
if (rc < 0)
return rc;
- for_each_set_bit(port, port_bitmap, SJA1105_NUM_PORTS)
- inhibit_cmd |= BIT(port);
+ if (tx_inhibited)
+ inhibit_cmd |= port_bitmap;
+ else
+ inhibit_cmd &= ~port_bitmap;
return sja1105_spi_send_int(priv, SPI_WRITE, regs->port_control,
&inhibit_cmd, SJA1105_SIZE_PORT_CTRL);
@@ -415,7 +417,7 @@ int sja1105_static_config_upload(struct sja1105_private *priv)
* Tx on all ports and waiting for current packet to drain.
* Otherwise, the PHY will see an unterminated Ethernet packet.
*/
- rc = sja1105_inhibit_tx(priv, &port_bitmap);
+ rc = sja1105_inhibit_tx(priv, port_bitmap, true);
if (rc < 0) {
dev_err(dev, "Failed to inhibit Tx on ports\n");
return -ENXIO;