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mtd: rawnand: fsmc: Take instruction delay into account

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The FSMC NAND controller should apply a delay after the
instruction has been issued on the bus.
The FSMC NAND controller driver did not handle this delay.

Add this waiting delay in the FSMC NAND controller driver.

Fixes: 4da712e702 ("mtd: nand: fsmc: use ->exec_op()")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-4-herve.codina@bootlin.com
This commit is contained in:
Herve Codina 2021-11-19 16:03:15 +01:00 committed by Miquel Raynal
parent 36a65982a9
commit a4ca0c439f
1 changed files with 4 additions and 0 deletions
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4
drivers/mtd/nand/raw/fsmc_nand.c
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@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/dma-direction.h>
#include <linux/dma-mapping.h>
@ -664,6 +665,9 @@ static int fsmc_exec_op(struct nand_chip *chip, const struct nand_operation *op,
instr->ctx.waitrdy.timeout_ms);
break;
}
if (instr->delay_ns)
ndelay(instr->delay_ns);
}
return ret;