From 83936ea8d8ad22d094172e35cc36ec80d4ddfa96 Mon Sep 17 00:00:00 2001
From: Jianguo Zhang <jianguo.zhang@mediatek.com>
Date: Thu, 29 Sep 2022 09:47:58 +0800
Subject: [PATCH] net: stmmac: add a parse for new property 'snps,clk-csr'

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 legacy case

Signed-off-by: Jianguo Zhang <jianguo.zhang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index b0b09c77711d1..50f6b4a14be4c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -444,7 +444,8 @@ 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.
-- 
2.30.2