[PATCH v6 4/4] net: stmmac: add a parse for new property 'snps,clk-csr'

[Jianguo Zhang]

Parse new property 'snps,clk-csr' firstly because the new property
is documented in binding file, if failed, fall back to old property
'clk_csr' for out-of-tree case

Signed-off-by: Jianguo Zhang <jianguo.zhang@xxxxxxxxxxxx>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 9f5cac4000da..4c60a89460c8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -444,7 +444,9 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 	 * or get clk_csr from device tree.
 	 */
 	plat->clk_csr = -1;
-	of_property_read_u32(np, "clk_csr", &plat->clk_csr);
+	if (of_property_read_u32(np, "snps,clk-csr", &plat->clk_csr))
+		of_property_read_u32(np, "clk_csr", &plat->clk_csr);
+
 
 	/* "snps,phy-addr" is not a standard property. Mark it as deprecated
 	 * and warn of its use. Remove this when phy node support is added.
-- 
2.25.1