mtd: rawnand: brcmnand: move to polling in pio mode on oops write

This change makes sure that Broadcom NAND driver moves to interrupt
polling on the first brcmnand_write() call.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210311170909.9031-2-kdasu.kdev@gmail.com

diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 31ef2f1..f759297 100644 (file)
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2341,6 +2341,10 @@ static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip,
        for (i = 0; i < ctrl->max_oob; i += 4)
                oob_reg_write(ctrl, i, 0xffffffff);
 
+       if (mtd->oops_panic_write)
+               /* switch to interrupt polling and PIO mode */
+               disable_ctrl_irqs(ctrl);
+
        if (use_dma(ctrl) && (has_edu(ctrl) || !oob) && flash_dma_buf_ok(buf)) {
                if (ctrl->dma_trans(host, addr, (u32 *)buf, oob, mtd->writesize,
                                    CMD_PROGRAM_PAGE))