diff options
| author | Herve Codina | 2021-11-19 16:03:15 +0100 |
|---|---|---|
| committer | Miquel Raynal | 2021-12-03 14:33:45 +0100 |
| commit | a4ca0c439f2d5ce9a3dc118d882f9f03449864c8 (patch) | |
| tree | 77a1b64efa2373e3f536fbd9f2fc243816fd3595 /drivers/mtd | |
| parent | 36a65982a98c4bc72fdcfef2c4aaf90193746631 (diff) | |
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: 4da712e70294 ("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
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/fsmc_nand.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index 658f0cbe7ce8..0a6c9ef0ea8b 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -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; |