[PATCH v1 2/4] mtd: spinand: Add continuous read state

JaimeLiao
2022-08-11T09:45:59Z

Add continuous read state and initialize state to
default false.

Signed-off-by: JaimeLiao <jaimeliao.tw@gmail.com>
---
drivers/mtd/nand/spi/core.c | 8 ++++++++
include/linux/mtd/spinand.h | 2 ++
2 files changed, 10 insertions(+)

diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index dc2e1dc1dbee..380411feab6c 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -193,6 +193,11 @@ static int spinand_init_quad_enable(struct spinand_device *spinand)
enable ? CFG_QUAD_ENABLE : 0);
}

+static void spinand_init_continuous_read(struct spinand_device *spinand)
+{
+ spinand->use_continuous_read = false;
+}
+
static int spinand_continuous_read_enable(struct spinand_device *spinand)
{
return spinand_upd_cfg(spinand, CFG_CONT_READ_ENABLE,
@@ -1261,6 +1266,9 @@ static int spinand_init(struct spinand_device *spinand)
mtd->ecc_strength = nanddev_get_ecc_conf(nand)->strength;
mtd->ecc_step_size = nanddev_get_ecc_conf(nand)->step_size;

+ /* Init continuous read */
+ spinand_init_continuous_read(spinand);
+
return 0;

err_cleanup_ecc_engine:
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 37b46c556bd7..d70a6f49cc6f 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -415,6 +415,7 @@ struct spinand_dirmap {
* because the spi-mem interface explicitly requests that buffers
* passed in spi_mem_op be DMA-able, so we can't based the bufs on
* the stack
+ * @use_continuous_read: record the continuous read status
* @manufacturer: SPI NAND manufacturer information
* @priv: manufacturer private data
*/
@@ -443,6 +444,7 @@ struct spinand_device {
u8 *databuf;
u8 *oobbuf;
u8 *scratchbuf;
+ bool use_continuous_read;
const struct spinand_manufacturer *manufacturer;
void *priv;
};