openwrt/target/linux/mediatek/patches-5.15/120-13-v5.19-mtd-nand-mtk-ecc-also-parse-nand-ecc-engine-if-avail.patch

From 433b76fa0f3ca2865841abc21538dd8077ca3edd Mon Sep 17 00:00:00 2001
From: Chuanhong Guo <gch981213@gmail.com>
Date: Mon, 4 Apr 2022 00:05:38 +0800
Subject: [PATCH 13/15] mtd: nand: mtk-ecc: also parse nand-ecc-engine if
 available

The recently added ECC engine support introduced a generic property
named nand-ecc-engine for ecc engine phandle. This patch adds support
for this new property.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry picked from commit a41f25feb6e47c1c4d8d3279ae990ccbd8dfab54)
---
 drivers/mtd/nand/ecc-mtk.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/mtd/nand/ecc-mtk.c
+++ b/drivers/mtd/nand/ecc-mtk.c
@@ -279,7 +279,10 @@ struct mtk_ecc *of_mtk_ecc_get(struct de
 	struct mtk_ecc *ecc = NULL;
 	struct device_node *np;
 
-	np = of_parse_phandle(of_node, "ecc-engine", 0);
+	np = of_parse_phandle(of_node, "nand-ecc-engine", 0);
+	/* for backward compatibility */
+	if (!np)
+		np = of_parse_phandle(of_node, "ecc-engine", 0);
 	if (np) {
 		ecc = mtk_ecc_get(np);
 		of_node_put(np);