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[02/12] mtd: nand: davinci: set ECC algorithm explicitly

Message ID 1460750052-16285-3-git-send-email-zajec5@gmail.com
State Superseded
Headers show

Commit Message

Rafał Miłecki April 15, 2016, 7:54 p.m. UTC 
This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
 drivers/mtd/nand/davinci_nand.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index fe3fd29..b0a2801 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -738,6 +738,14 @@  static int nand_davinci_probe(struct platform_device *pdev)
 	}
 	info->chip.ecc.mode = ecc_mode;
 
+	/*
+	 * When using software ECC this driver support hamming only. Force
+	 * ecc.algo to NAND_ECC_HAMMING to avoid adding an extra ->ecc_algo
+	 * field to davinci_nand_pdata.
+	 */
+	if (ecc_mode == NAND_ECC_SOFT)
+		info->chip.ecc.algo = NAND_ECC_HAMMING;
+
 	info->clk = devm_clk_get(&pdev->dev, "aemif");
 	if (IS_ERR(info->clk)) {
 		ret = PTR_ERR(info->clk);