Add "snps,dwmac-5.30a" compatible string for 5.30a version that can avoid
to define some platform data in the glue layer.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 .../ethernet/stmicro/stmmac/stmmac_platform.c   | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index ad868e8d195d..86ca39f89447 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -421,6 +421,17 @@ static void stmmac_remove_config_dt(struct platform_device *pdev,
 	of_node_put(plat->mdio_node);
 }
 
+/* Compatible string array for all gmac4 devices */
+static const char * const stmmac_gmac4_compats[] = {
+	"snps,dwmac-4.00",
+	"snps,dwmac-4.10a",
+	"snps,dwmac-4.20a",
+	"snps,dwmac-5.10a",
+	"snps,dwmac-5.20",
+	"snps,dwmac-5.30a",
+	NULL
+};
+
 /**
  * stmmac_probe_config_dt - parse device-tree driver parameters
  * @pdev: platform_device structure
@@ -551,11 +562,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 		plat->pmt = 1;
 	}
 
-	if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
-	    of_device_is_compatible(np, "snps,dwmac-4.10a") ||
-	    of_device_is_compatible(np, "snps,dwmac-4.20a") ||
-	    of_device_is_compatible(np, "snps,dwmac-5.10a") ||
-	    of_device_is_compatible(np, "snps,dwmac-5.20")) {
+	if (of_device_compatible_match(np, stmmac_gmac4_compats)) {
 		plat->has_gmac4 = 1;
 		plat->has_gmac = 0;
 		plat->pmt = 1;
-- 
2.47.0