From: Roger Quadros <rogerq@kernel.org>
Date: Thu, 9 Dec 2021 09:04:57 +0000 (+0200)
Subject: mtd: rawnand: omap2: fix force_8bit flag behaviour for DMA mode
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4695a3cf004a44a8d196d7c2f23d46efca0f92e3;p=linux.git

mtd: rawnand: omap2: fix force_8bit flag behaviour for DMA mode

In DMA mode we were not considering the force_8bit flag.

Fix it by using regular non-DMA 8-bit I/O if force_8bit flag is set.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211209090458.24830-6-rogerq@kernel.org
---

diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
index 0c7ee26171ad2..2b58ddea3b015 100644
--- a/drivers/mtd/nand/raw/omap2.c
+++ b/drivers/mtd/nand/raw/omap2.c
@@ -447,6 +447,11 @@ static void omap_nand_data_in_dma_pref(struct nand_chip *chip, void *buf,
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
 
+	if (force_8bit) {
+		omap_nand_data_in(chip, buf, len, force_8bit);
+		return;
+	}
+
 	if (len <= mtd->oobsize)
 		omap_nand_data_in_pref(chip, buf, len, false);
 	else
@@ -463,6 +468,11 @@ static void omap_nand_data_out_dma_pref(struct nand_chip *chip,
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
 
+	if (force_8bit) {
+		omap_nand_data_out(chip, buf, len, force_8bit);
+		return;
+	}
+
 	if (len <= mtd->oobsize)
 		omap_nand_data_out_pref(chip, buf, len, false);
 	else