mtd: nand: ecc-bch: Update the prototypes to be more generic

These functions must be usable by the main NAND core, so their names
must be technology-agnostic as well as the parameters. Hence, we pass
a generic nand_device instead of a raw nand_chip structure.

As it seems that changing the raw NAND functions to always pass a
generic NAND device is a lost of time, we prefer to create dedicated
raw NAND wrappers that will be useful in the near future to do the
translation.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-8-miquel.raynal@bootlin.com

1 files changed, 40 insertions, 4 deletions

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index b49483d04755..2ef674c10ac8 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5139,6 +5139,42 @@ static void nand_scan_ident_cleanup(struct nand_chip *chip)
 	kfree(chip->parameters.onfi);
 }
 
+int rawnand_sw_bch_init(struct nand_chip *chip)
+{
+	struct nand_device *base = &chip->base;
+
+	return nand_ecc_sw_bch_init(base);
+}
+EXPORT_SYMBOL(rawnand_sw_bch_init);
+
+static int rawnand_sw_bch_calculate(struct nand_chip *chip,
+				    const unsigned char *buf,
+				    unsigned char *code)
+{
+	struct nand_device *base = &chip->base;
+
+	return nand_ecc_sw_bch_calculate(base, buf, code);
+}
+
+int rawnand_sw_bch_correct(struct nand_chip *chip, unsigned char *buf,
+			   unsigned char *read_ecc, unsigned char *calc_ecc)
+{
+	struct nand_device *base = &chip->base;
+
+	return nand_ecc_sw_bch_correct(base, buf, read_ecc, calc_ecc);
+}
+EXPORT_SYMBOL(rawnand_sw_bch_correct);
+
+void rawnand_sw_bch_cleanup(struct nand_chip *chip)
+{
+	struct nand_device *base = &chip->base;
+
+	nand_ecc_sw_bch_cleanup(base);
+
+	chip->ecc.priv = NULL;
+}
+EXPORT_SYMBOL(rawnand_sw_bch_cleanup);
+
 static int nand_set_ecc_on_host_ops(struct nand_chip *chip)
 {
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
@@ -5235,8 +5271,8 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip)
 			WARN(1, "CONFIG_MTD_NAND_ECC_SW_BCH not enabled\n");
 			return -EINVAL;
 		}
-		ecc->calculate = nand_bch_calculate_ecc;
-		ecc->correct = nand_bch_correct_data;
+		ecc->calculate = rawnand_sw_bch_calculate;
+		ecc->correct = rawnand_sw_bch_correct;
 		ecc->read_page = nand_read_page_swecc;
 		ecc->read_subpage = nand_read_subpage;
 		ecc->write_page = nand_write_page_swecc;
@@ -5292,7 +5328,7 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip)
 
 		/* See the software BCH ECC initialization for details */
 		ecc->bytes = 0;
-		ret = nand_bch_init(chip);
+		ret = rawnand_sw_bch_init(chip);
 		if (ret) {
 			WARN(1, "BCH ECC initialization failed!\n");
 			return ret;
@@ -5957,7 +5993,7 @@ void nand_cleanup(struct nand_chip *chip)
 {
 	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
 	    chip->ecc.algo == NAND_ECC_ALGO_BCH)
-		nand_bch_free(chip);
+		rawnand_sw_bch_cleanup(chip);
 
 	nanddev_cleanup(&chip->base);