Commit a4ca0c43 authored by Herve Codina's avatar Herve Codina Committed by Miquel Raynal
Browse files

mtd: rawnand: fsmc: Take instruction delay into account 



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: 4da712e7 ("mtd: nand: fsmc: use ->exec_op()")
Signed-off-by: default avatarHerve Codina <herve.codina@bootlin.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-4-herve.codina@bootlin.com
parent 36a65982

drivers/mtd/nand/raw/fsmc_nand.c

+4 −0
Original line number Diff line number Diff line
@@ -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;