diff options
| author | Dinh Nguyen <dinguyen@opensource.altera.com> | 2015-03-06 17:48:28 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-08 22:52:45 -0400 |
| commit | cbe21d92e4d501e4895ef668b43fd8998c9b3b02 (patch) | |
| tree | b519210201802b87d675767c35bed0e555fae862 /drivers | |
| parent | 9b974499e44536fd524dfad23f4f8477e6e243ab (diff) | |
| download | linux-cbe21d92e4d501e4895ef668b43fd8998c9b3b02.tar.bz2 | |
net: stmmac: make reset control an optional requirement
Not having a reset control line to the ethernet controller should not be a
hard failure. Instead, add support for deferred probing and just print out
a debug statement.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
CC: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index e97074cd5800..5a36bd2c7837 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -91,7 +91,9 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device * STMMAC_RESOURCE_NAME); if (IS_ERR(dwmac->stmmac_rst)) { dev_info(dev, "Could not get reset control!\n"); - return -EINVAL; + if (PTR_ERR(dwmac->stmmac_rst) == -EPROBE_DEFER) + return -EPROBE_DEFER; + dwmac->stmmac_rst = NULL; } dwmac->interface = of_get_phy_mode(np); |