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authorDavid Regan <dregan@broadcom.com>2023-11-24 17:24:36 -0800
committerMiquel Raynal <miquel.raynal@bootlin.com>2023-12-04 11:51:40 +0100
commit68cce21e3cc5fea8d955a62394454149270c98bc (patch)
treefae745b5ff5de26065630be1e4aa1bcbb7f0d401 /include/linux/mtd
parent578dc962ff2000ba4bf52d50717aea0819615634 (diff)
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mtd: rawnand: NAND controller write protect
Allow NAND controller to be responsible for write protect pin handling during fast path and exec_op destructive operation when controller_wp flag is set. Signed-off-by: David Regan <dregan@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20231125012438.15191-2-dregan@broadcom.com
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/rawnand.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index bd02aba5e6e3..a17f795070d8 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1115,6 +1115,7 @@ struct nand_controller_ops {
* the bus without restarting an entire read operation nor
* changing the column.
* @supported_op.cont_read: The controller supports sequential cache reads.
+ * @controller_wp: the controller is in charge of handling the WP pin.
*/
struct nand_controller {
struct mutex lock;
@@ -1123,6 +1124,7 @@ struct nand_controller {
unsigned int data_only_read: 1;
unsigned int cont_read: 1;
} supported_op;
+ bool controller_wp;
};
static inline void nand_controller_init(struct nand_controller *nfc)