mtd: spi-nor-core: Add the ->ready() hook
For dual/quad die package devices from Spansion/Cypress, the device's
status needs to be checked by reading status registers in all dies, by
using Read Any Register command. To support this, a Flash specific hook
that can overwrite the legacy status check is needed.
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 81df05f..e579ff2 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -504,6 +504,7 @@
* completely locked
* @quad_enable: [FLASH-SPECIFIC] enables SPI NOR quad mode
* @octal_dtr_enable: [FLASH-SPECIFIC] enables SPI NOR octal DTR mode.
+ * @ready: [FLASH-SPECIFIC] check if the flash is ready
* @priv: the private data
*/
struct spi_nor {
@@ -552,6 +553,7 @@
int (*flash_is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*quad_enable)(struct spi_nor *nor);
int (*octal_dtr_enable)(struct spi_nor *nor);
+ int (*ready)(struct spi_nor *nor);
void *priv;
/* Compatibility for spi_flash, remove once sf layer is merged with mtd */