Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH] net: stmmac: make reset control an optional requirement | Date | Fri, 6 Mar 2015 15:32:55 -0600 |
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From: Dinh Nguyen <dinguyen@opensource.altera.com>
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> --- drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index e97074c..ecb0b9b 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) + ret = -EPROBE_DEFER; + dwmac->stmmac_rst = NULL; } dwmac->interface = of_get_phy_mode(np); -- 2.2.1
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