linux-kernel - [PATCH v6 3/5] mtd: nand: mtk-ecc: also parse nand-ecc-engine if available

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Message-Id: <20220424032527.673605-4-gch981213@gmail.com>
Date:   Sun, 24 Apr 2022 11:25:25 +0800
From:   Chuanhong Guo <gch981213@...il.com>
To:     linux-spi@...r.kernel.org
Cc:     Chuanhong Guo <gch981213@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Roger Quadros <rogerq@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        Florian Fainelli <f.fainelli@...il.com>,
        Colin Ian King <colin.king@...el.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Paul Cercueil <paul@...pouillou.net>,
        Pratyush Yadav <p.yadav@...com>, Yu Kuai <yukuai3@...wei.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support),
        linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support), linux-kernel@...r.kernel.org (open list),
        linux-mtd@...ts.infradead.org (open list:NAND FLASH SUBSYSTEM)
Subject: [PATCH v6 3/5] 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@...il.com>
---
Change since v1:
  new patch
Change in v2-v6: None

 drivers/mtd/nand/ecc-mtk.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/ecc-mtk.c b/drivers/mtd/nand/ecc-mtk.c
index 74ddaa46ba7c..9f9b201fe706 100644
--- 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 device_node *of_node)
 	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);
-- 
2.35.1