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-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6e6ee226de04..b0c1521e08a3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2786,8 +2786,15 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
if (IS_ERR(priv->stmmac_clk)) {
dev_warn(priv->device, "%s: warning: cannot get CSR clock\n",
__func__);
- ret = PTR_ERR(priv->stmmac_clk);
- goto error_clk_get;
+ /* If failed to obtain stmmac_clk and specific clk_csr value
+ * is NOT passed from the platform, probe fail.
+ */
+ if (!priv->plat->clk_csr) {
+ ret = PTR_ERR(priv->stmmac_clk);
+ goto error_clk_get;
+ } else {
+ priv->stmmac_clk = NULL;
+ }
}
clk_prepare_enable(priv->stmmac_clk);