diff mbox series

[RESEND,v5,09/21] mtd: rawnand: Create a new enumeration to describe properly ECC types

Message ID 20200526195633.11543-10-miquel.raynal@bootlin.com
State New
Headers show
Series [RESEND,v5,01/21] mtd: Fix typo in mtd_ooblayout_set_databytes() description | expand

Commit Message

Miquel Raynal May 26, 2020, 7:56 p.m. UTC 
Now that the misleading mix between ECC engine type and OOB placement
has been addressed, add a new enumeration to properly define ECC types
(also called provider or mode).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
---
 drivers/mtd/nand/raw/nand_base.c |  7 +++++++
 include/linux/mtd/rawnand.h      | 16 ++++++++++++++++
 2 files changed, 23 insertions(+)
diff mbox series

Patch

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 515cd4681660..5c6ab5b93270 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5018,6 +5018,13 @@  static const char * const nand_ecc_modes[] = {
 	[NAND_ECC_ON_DIE]	= "on-die",
 };
 
+static const char * const nand_ecc_engine_providers[] = {
+	[NAND_ECC_ENGINE_NONE] = "none",
+	[NAND_ECC_ENGINE_SOFT] = "soft",
+	[NAND_ECC_ENGINE_CONTROLLER] = "hw",
+	[NAND_ECC_ENGINE_ON_DIE] = "on-die",
+};
+
 static const char * const nand_ecc_placement[] = {
 	[NAND_ECC_PLACEMENT_INTERLEAVED] = "interleaved",
 };
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index dc909fb977c7..a2078c5f3d21 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -92,6 +92,22 @@  enum nand_ecc_mode {
 	NAND_ECC_ON_DIE,
 };
 
+/**
+ * enum nand_ecc_engine_type - NAND ECC engine type/provider
+ * @NAND_ECC_ENGINE_INVALID: Invalid value
+ * @NAND_ECC_ENGINE_NONE: No ECC correction
+ * @NAND_ECC_ENGINE_SOFT: Software ECC correction
+ * @NAND_ECC_ENGINE_CONTROLLER: Hardware controller ECC correction
+ * @NAND_ECC_ENGINE_ON_DIE: On chip hardware ECC correction
+ */
+enum nand_ecc_engine_type {
+	NAND_ECC_ENGINE_INVALID,
+	NAND_ECC_ENGINE_NONE,
+	NAND_ECC_ENGINE_SOFT,
+	NAND_ECC_ENGINE_CONTROLLER,
+	NAND_ECC_ENGINE_ON_DIE,
+};
+
 /**
  * enum nand_ecc_placement - NAND ECC placement
  * @NAND_ECC_PLACEMENT_FREE: The driver can decide where to put ECC bytes.