diff options
| author |   Oleksij Rempel <o.rempel@pengutronix.de> | 2022-08-26 12:56:21 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-08-31 09:41:19 +0100 |
| commit | 8f420456792308639fcbc15462050c521fbd127d (patch) | |
| tree | f824bb507b55f8856bf91891749c642188250c5b /drivers/net/dsa/microchip/ksz9477.c | |
| parent | net: dsa: microchip: don't announce extended register support on non Gbit chips (diff) | |
| download | wireguard-linux-8f420456792308639fcbc15462050c521fbd127d.tar.xz wireguard-linux-8f420456792308639fcbc15462050c521fbd127d.zip | |
net: dsa: microchip: allow to pass return values for PHY read/write accesses
PHY access may end with errors on different levels. So, allow to forward
return values where possible.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/microchip/ksz9477.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz9477.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c index 2b3bf1d3950c..a4f682d3e1fe 100644 --- a/drivers/net/dsa/microchip/ksz9477.c +++ b/drivers/net/dsa/microchip/ksz9477.c @@ -274,7 +274,7 @@ static void ksz9477_r_phy_quirks(struct ksz_device *dev, u16 addr, u16 reg, *data &= ~(BMSR_ESTATEN | BMSR_ERCAP); } -void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data) +int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data) { u16 val = 0xffff; @@ -322,19 +322,23 @@ void ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data) } *data = val; + + return 0; } -void ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val) +int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val) { /* No real PHY after this. */ if (addr >= dev->phy_port_cnt) - return; + return 0; /* No gigabit support. Do not write to this register. */ if (!dev->info->gbit_capable[addr] && reg == MII_CTRL1000) - return; + return 0; ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val); + + return 0; } void ksz9477_cfg_port_member(struct ksz_device *dev, int port, u8 member) |