diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2019-08-29 11:17:24 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-10 10:31:04 +0100 |
| commit | 9e208ccf32eaf35738b342ee9dd491a99f8ac8e2 (patch) | |
| tree | 052c1412e5d3580bbf8243e519ce86b88ad81d2b | |
| parent | a794b0ea63b946a706fa59e687637e2663ec0409 (diff) | |
net: stmmac: dwmac-rk: Don't fail if phy regulator is absent
[ Upstream commit 3b25528e1e355c803e73aa326ce657b5606cda73 ]
The devicetree binding lists the phy phy as optional. As such, the
driver should not bail out if it can't find a regulator. Instead it
should just skip the remaining regulator related code and continue
on normally.
Skip the remainder of phy_power_on() if a regulator supply isn't
available. This also gets rid of the bogus return code.
Fixes: 2e12f536635f ("net: stmmac: dwmac-rk: Use standard devicetree property for phy regulator")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 6e61bccc90b3..15c063880f88 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -771,10 +771,8 @@ static int phy_power_on(struct rk_priv_data *bsp_priv, bool enable) int ret; struct device *dev = &bsp_priv->pdev->dev; - if (!ldo) { - dev_err(dev, "no regulator found\n"); - return -1; - } + if (!ldo) + return 0; if (enable) { ret = regulator_enable(ldo); |