linux-kernel - [PATCH v2 5/6] mtd: rawnand: omap2: fix force

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Message-Id: <20211209090458.24830-6-rogerq@kernel.org>
Date:   Thu,  9 Dec 2021 11:04:57 +0200
From:   Roger Quadros <rogerq@...nel.org>
To:     miquel.raynal@...tlin.com, richard@....at
Cc:     vigneshr@...com, kishon@...com, nm@...com, tony@...mide.com,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Roger Quadros <rogerq@...nel.org>
Subject: [PATCH v2 5/6] 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@...nel.org>
---
 drivers/mtd/nand/raw/omap2.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
index 0c7ee26171ad..2b58ddea3b01 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
-- 
2.17.1