lan9303_enable_packet_processing, lan9303_disable_packet_processing()
Pass port number (0,1,2) as parameter instead of port offset.

Plus replaced a constant 0x400 with LAN9303_SWITCH_PORT_REG().

Signed-off-by: Egil Hjelmeland <pri...@egil-hjelmeland.no>
---
 drivers/net/dsa/lan9303-core.c | 59 +++++++++++++++++++++---------------------
 1 file changed, 30 insertions(+), 29 deletions(-)

diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index 8e430d1ee297..4d2bb8144c15 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -159,9 +159,7 @@
 # define LAN9303_BM_EGRSS_PORT_TYPE_SPECIAL_TAG_PORT1 (BIT(9) | BIT(8))
 # define LAN9303_BM_EGRSS_PORT_TYPE_SPECIAL_TAG_PORT0 (BIT(1) | BIT(0))
 
-#define LAN9303_PORT_0_OFFSET 0x400
-#define LAN9303_PORT_1_OFFSET 0x800
-#define LAN9303_PORT_2_OFFSET 0xc00
+#define LAN9303_SWITCH_PORT_REG(port, reg0) (0x400 * (port) + (reg0))
 
 /* the built-in PHYs are of type LAN911X */
 #define MII_LAN911X_SPECIAL_MODES 0x12
@@ -458,24 +456,25 @@ static int lan9303_detect_phy_setup(struct lan9303 *chip)
        return 0;
 }
 
-#define LAN9303_MAC_RX_CFG_OFFS (LAN9303_MAC_RX_CFG_0 - LAN9303_PORT_0_OFFSET)
-#define LAN9303_MAC_TX_CFG_OFFS (LAN9303_MAC_TX_CFG_0 - LAN9303_PORT_0_OFFSET)
-
 static int lan9303_disable_packet_processing(struct lan9303 *chip,
                                             unsigned int port)
 {
        int ret;
 
        /* disable RX, but keep register reset default values else */
-       ret = lan9303_write_switch_reg(chip, LAN9303_MAC_RX_CFG_OFFS + port,
-                                      LAN9303_MAC_RX_CFG_X_REJECT_MAC_TYPES);
+       ret = lan9303_write_switch_reg(
+                       chip,
+                       LAN9303_SWITCH_PORT_REG(port, LAN9303_MAC_RX_CFG_0),
+                       LAN9303_MAC_RX_CFG_X_REJECT_MAC_TYPES);
        if (ret)
                return ret;
 
        /* disable TX, but keep register reset default values else */
-       return lan9303_write_switch_reg(chip, LAN9303_MAC_TX_CFG_OFFS + port,
-                               LAN9303_MAC_TX_CFG_X_TX_IFG_CONFIG_DEFAULT |
-                               LAN9303_MAC_TX_CFG_X_TX_PAD_ENABLE);
+       return lan9303_write_switch_reg(
+                       chip,
+                       LAN9303_SWITCH_PORT_REG(port, LAN9303_MAC_TX_CFG_0),
+                       LAN9303_MAC_TX_CFG_X_TX_IFG_CONFIG_DEFAULT |
+                       LAN9303_MAC_TX_CFG_X_TX_PAD_ENABLE);
 }
 
 static int lan9303_enable_packet_processing(struct lan9303 *chip,
@@ -484,17 +483,21 @@ static int lan9303_enable_packet_processing(struct 
lan9303 *chip,
        int ret;
 
        /* enable RX and keep register reset default values else */
-       ret = lan9303_write_switch_reg(chip, LAN9303_MAC_RX_CFG_OFFS + port,
-                                      LAN9303_MAC_RX_CFG_X_REJECT_MAC_TYPES |
-                                      LAN9303_MAC_RX_CFG_X_RX_ENABLE);
+       ret = lan9303_write_switch_reg(
+                       chip,
+                       LAN9303_SWITCH_PORT_REG(port, LAN9303_MAC_RX_CFG_0),
+                       LAN9303_MAC_RX_CFG_X_REJECT_MAC_TYPES |
+                       LAN9303_MAC_RX_CFG_X_RX_ENABLE);
        if (ret)
                return ret;
 
        /* enable TX and keep register reset default values else */
-       return lan9303_write_switch_reg(chip, LAN9303_MAC_TX_CFG_OFFS + port,
-                               LAN9303_MAC_TX_CFG_X_TX_IFG_CONFIG_DEFAULT |
-                               LAN9303_MAC_TX_CFG_X_TX_PAD_ENABLE |
-                               LAN9303_MAC_TX_CFG_X_TX_ENABLE);
+       return lan9303_write_switch_reg(
+                       chip,
+                       LAN9303_SWITCH_PORT_REG(port, LAN9303_MAC_TX_CFG_0),
+                       LAN9303_MAC_TX_CFG_X_TX_IFG_CONFIG_DEFAULT |
+                       LAN9303_MAC_TX_CFG_X_TX_PAD_ENABLE |
+                       LAN9303_MAC_TX_CFG_X_TX_ENABLE);
 }
 
 /* We want a special working switch:
@@ -558,13 +561,13 @@ static int lan9303_disable_processing(struct lan9303 
*chip)
 {
        int ret;
 
-       ret = lan9303_disable_packet_processing(chip, LAN9303_PORT_0_OFFSET);
+       ret = lan9303_disable_packet_processing(chip, 0);
        if (ret)
                return ret;
-       ret = lan9303_disable_packet_processing(chip, LAN9303_PORT_1_OFFSET);
+       ret = lan9303_disable_packet_processing(chip, 1);
        if (ret)
                return ret;
-       return lan9303_disable_packet_processing(chip, LAN9303_PORT_2_OFFSET);
+       return lan9303_disable_packet_processing(chip, 2);
 }
 
 static int lan9303_check_device(struct lan9303 *chip)
@@ -634,7 +637,7 @@ static int lan9303_setup(struct dsa_switch *ds)
        if (ret)
                dev_err(chip->dev, "failed to separate ports %d\n", ret);
 
-       ret = lan9303_enable_packet_processing(chip, LAN9303_PORT_0_OFFSET);
+       ret = lan9303_enable_packet_processing(chip, 0);
        if (ret)
                dev_err(chip->dev, "failed to re-enable switching %d\n", ret);
 
@@ -704,7 +707,7 @@ static void lan9303_get_ethtool_stats(struct dsa_switch 
*ds, int port,
        unsigned int u, poff;
        int ret;
 
-       poff = port * 0x400;
+       poff = LAN9303_SWITCH_PORT_REG(port, 0);
 
        for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
                ret = lan9303_read_switch_reg(chip,
@@ -757,11 +760,9 @@ static int lan9303_port_enable(struct dsa_switch *ds, int 
port,
        /* enable internal packet processing */
        switch (port) {
        case 1:
-               return lan9303_enable_packet_processing(chip,
-                                                       LAN9303_PORT_1_OFFSET);
+               return lan9303_enable_packet_processing(chip, port);
        case 2:
-               return lan9303_enable_packet_processing(chip,
-                                                       LAN9303_PORT_2_OFFSET);
+               return lan9303_enable_packet_processing(chip, port);
        default:
                dev_dbg(chip->dev,
                        "Error: request to power up invalid port %d\n", port);
@@ -778,12 +779,12 @@ static void lan9303_port_disable(struct dsa_switch *ds, 
int port,
        /* disable internal packet processing */
        switch (port) {
        case 1:
-               lan9303_disable_packet_processing(chip, LAN9303_PORT_1_OFFSET);
+               lan9303_disable_packet_processing(chip, port);
                lan9303_phy_write(ds, chip->phy_addr_sel_strap + 1,
                                  MII_BMCR, BMCR_PDOWN);
                break;
        case 2:
-               lan9303_disable_packet_processing(chip, LAN9303_PORT_2_OFFSET);
+               lan9303_disable_packet_processing(chip, port);
                lan9303_phy_write(ds, chip->phy_addr_sel_strap + 2,
                                  MII_BMCR, BMCR_PDOWN);
                break;
-- 
2.11.0

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