summaryrefslogtreecommitdiffstats
path: root/include/linux/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/spinand.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 5c19ead60499..14dce347dc46 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -336,6 +336,7 @@ struct spinand_ondie_ecc_conf {
* @op_variants.update_cache: variants of the update-cache operation
* @select_target: function used to select a target/die. Required only for
* multi-die chips
+ * @set_cont_read: enable/disable continuous cached reads
*
* Each SPI NAND manufacturer driver should have a spinand_info table
* describing all the chips supported by the driver.
@@ -354,6 +355,8 @@ struct spinand_info {
} op_variants;
int (*select_target)(struct spinand_device *spinand,
unsigned int target);
+ int (*set_cont_read)(struct spinand_device *spinand,
+ bool enable);
};
#define SPINAND_ID(__method, ...) \
@@ -379,6 +382,9 @@ struct spinand_info {
#define SPINAND_SELECT_TARGET(__func) \
.select_target = __func,
+#define SPINAND_CONT_READ(__set_cont_read) \
+ .set_cont_read = __set_cont_read,
+
#define SPINAND_INFO(__model, __id, __memorg, __eccreq, __op_variants, \
__flags, ...) \
{ \
@@ -422,6 +428,12 @@ struct spinand_dirmap {
* passed in spi_mem_op be DMA-able, so we can't based the bufs on
* the stack
* @manufacturer: SPI NAND manufacturer information
+ * @cont_read_possible: Field filled by the core once the whole system
+ * configuration is known to tell whether continuous reads are
+ * suitable to use or not in general with this chip/configuration.
+ * A per-transfer check must of course be done to ensure it is
+ * actually relevant to enable this feature.
+ * @set_cont_read: Enable/disable the continuous read feature
* @priv: manufacturer private data
*/
struct spinand_device {
@@ -451,6 +463,10 @@ struct spinand_device {
u8 *scratchbuf;
const struct spinand_manufacturer *manufacturer;
void *priv;
+
+ bool cont_read_possible;
+ int (*set_cont_read)(struct spinand_device *spinand,
+ bool enable);
};
/**