[PATCH net-next 3/3] net: dsa: mv88e6xxx: Add support for EEPROM via platform data

[Andrew Lunn]

Add the size of the EEPROM to the platform data, so it can also be
instantiated by a platform device.

Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
 drivers/net/dsa/mv88e6xxx/chip.c        | 11 +++++++----
 drivers/net/dsa/mv88e6xxx/chip.h        |  2 +-
 include/linux/platform_data/mv88e6xxx.h |  1 +
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 5b40382036ea..1fa1f820a437 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4386,7 +4386,6 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
        struct device_node *np = dev->of_node;
        const struct mv88e6xxx_info *compat_info;
        struct mv88e6xxx_chip *chip;
-       u32 eeprom_len;
        int port;
        int err;
 
@@ -4436,9 +4435,13 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
 
        mv88e6xxx_phy_init(chip);
 
-       if (chip->info->ops->get_eeprom &&
-           !of_property_read_u32(np, "eeprom-length", &eeprom_len))
-               chip->eeprom_len = eeprom_len;
+       if (chip->info->ops->get_eeprom) {
+               if (np)
+                       of_property_read_u32(np, "eeprom-length",
+                                            &chip->eeprom_len);
+               else
+                       chip->eeprom_len = pdata->eeprom_len;
+       }
 
        mutex_lock(&chip->reg_lock);
        err = mv88e6xxx_switch_reset(chip);
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 012268046442..8ac3fbb15352 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -238,7 +238,7 @@ struct mv88e6xxx_chip {
        struct gpio_desc *reset;
 
        /* set to size of eeprom if supported by the switch */
-       int             eeprom_len;
+       u32 eeprom_len;
 
        /* List of mdio busses */
        struct list_head mdios;
diff --git a/include/linux/platform_data/mv88e6xxx.h 
b/include/linux/platform_data/mv88e6xxx.h
index 88e91e05f48f..f63af2955ea0 100644
--- a/include/linux/platform_data/mv88e6xxx.h
+++ b/include/linux/platform_data/mv88e6xxx.h
@@ -12,6 +12,7 @@ struct dsa_mv88e6xxx_pdata {
        const char *compatible;
        unsigned int enabled_ports;
        struct net_device *netdev;
+       u32 eeprom_len;
 };
 
 #endif
-- 
2.17.0