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65 lines
1.8 KiB
65 lines
1.8 KiB
From de994d9c849ca0ca020fccfa1916afcde7f313f2 Mon Sep 17 00:00:00 2001
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From: Boris BREZILLON <boris.brezillon@free-electrons.com>
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Date: Sun, 24 Aug 2014 10:40:44 +0200
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Subject: [PATCH] mtd: nand: sunxi: Fallback to chip config when partition
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config is not available
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Fallback to chip config for partitions where ecc/rnd config are not
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specified in the device tree.
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Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/mtd/nand/sunxi_nand.c | 27 ++++++++++++++++++---------
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1 file changed, 18 insertions(+), 9 deletions(-)
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--- a/drivers/mtd/nand/sunxi_nand.c
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+++ b/drivers/mtd/nand/sunxi_nand.c
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@@ -1709,28 +1709,37 @@ static void sunxi_nand_part_release(stru
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struct nand_part *sunxi_ofnandpart_parse(void *priv, struct mtd_info *master,
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struct device_node *pp)
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{
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+ struct nand_chip *chip = master->priv;
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struct sunxi_nand_part *part;
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int ret;
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part = kzalloc(sizeof(*part), GFP_KERNEL);
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part->part.release = sunxi_nand_part_release;
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- ret = sunxi_nand_ecc_init(master, &part->ecc, pp);
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- if (ret)
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- goto err;
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-
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- ret = sunxi_nand_rnd_init(master, &part->rnd, &part->ecc, pp);
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- if (ret) {
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- sunxi_nand_ecc_cleanup(&part->ecc);
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- goto err;
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+ if (of_find_property(pp, "nand-ecc-mode", NULL)) {
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+ ret = sunxi_nand_ecc_init(master, &part->ecc, pp);
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+ if (ret)
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+ goto err;
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+
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+ part->part.ecc = &part->ecc;
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}
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- part->part.ecc = &part->ecc;
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- part->part.rnd = &part->rnd;
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+ if (of_find_property(pp, "nand-rnd-mode", NULL)) {
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+ ret = sunxi_nand_rnd_init(master, &part->rnd,
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+ part->part.ecc ? part->part.ecc : &chip->ecc,
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+ pp);
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+ if (ret)
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+ goto err;
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+
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+ part->part.rnd = &part->rnd;
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+ }
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return &part->part;
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err:
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+ if (part->part.ecc)
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+ sunxi_nand_ecc_cleanup(part->part.ecc);
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+
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kfree(part);
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return ERR_PTR(ret);
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}
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