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

   1 From 433b76fa0f3ca2865841abc21538dd8077ca3edd Mon Sep 17 00:00:00 2001
   2 From: Chuanhong Guo <gch981213@gmail.com>
   3 Date: Mon, 4 Apr 2022 00:05:38 +0800
   4 Subject: [PATCH 13/15] mtd: nand: mtk-ecc: also parse nand-ecc-engine if
   5  available
   6
   7 The recently added ECC engine support introduced a generic property
   8 named nand-ecc-engine for ecc engine phandle. This patch adds support
   9 for this new property.
  10
  11 Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
  12 (cherry picked from commit a41f25feb6e47c1c4d8d3279ae990ccbd8dfab54)
  13 ---
  14  drivers/mtd/nand/ecc-mtk.c | 5 ++++-
  15  1 file changed, 4 insertions(+), 1 deletion(-)
  16
  17 diff --git a/drivers/mtd/nand/ecc-mtk.c b/drivers/mtd/nand/ecc-mtk.c
  18 index c64c3c45cdbc..79c7622af563 100644
  19 --- a/drivers/mtd/nand/ecc-mtk.c
  20 +++ b/drivers/mtd/nand/ecc-mtk.c
  21 @@ -279,7 +279,10 @@ struct mtk_ecc *of_mtk_ecc_get(struct device_node *of_node)
  22         struct mtk_ecc *ecc = NULL;
  23         struct device_node *np;
  24
  25 -       np = of_parse_phandle(of_node, "ecc-engine", 0);
  26 +       np = of_parse_phandle(of_node, "nand-ecc-engine", 0);
  27 +       /* for backward compatibility */
  28 +       if (!np)
  29 +               np = of_parse_phandle(of_node, "ecc-engine", 0);
  30         if (np) {
  31                 ecc = mtk_ecc_get(np);
  32                 of_node_put(np);
  33 --
  34 2.35.1
  35