[PATCH 07/15] mtd: nand: provide Linux' struct nand_ecc_ctrl::engine_type

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

The Linux MTD-NAND core doesn't seem to care much for the engine_type,
but different drivers use it to record during probe, which kind of
ECC engine should be used during future operation. Provide the member
to make porting drivers a tiny bit easier.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 include/linux/mtd/rawnand.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 9c8b0a1fe18e..ce8944c481df 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -95,6 +95,22 @@ enum nand_ecc_mode {
 	NAND_ECC_SOFT_BCH
 };
 
+/**
+ * enum nand_ecc_engine_type - NAND ECC engine type
+ * @NAND_ECC_ENGINE_TYPE_INVALID: Invalid value
+ * @NAND_ECC_ENGINE_TYPE_NONE: No ECC correction
+ * @NAND_ECC_ENGINE_TYPE_SOFT: Software ECC correction
+ * @NAND_ECC_ENGINE_TYPE_ON_HOST: On host hardware ECC correction
+ * @NAND_ECC_ENGINE_TYPE_ON_DIE: On chip hardware ECC correction
+ */
+enum nand_ecc_engine_type {
+	NAND_ECC_ENGINE_TYPE_INVALID,
+	NAND_ECC_ENGINE_TYPE_NONE,
+	NAND_ECC_ENGINE_TYPE_SOFT,
+	NAND_ECC_ENGINE_TYPE_ON_HOST,
+	NAND_ECC_ENGINE_TYPE_ON_DIE,
+};
+
 enum nand_ecc_algo {
 	NAND_ECC_ALGO_UNKNOWN,
 	NAND_ECC_ALGO_HAMMING,
@@ -313,6 +329,7 @@ static const struct nand_ecc_caps __name = {			\
 
 /**
  * struct nand_ecc_ctrl - Control structure for ECC
+ * @engine_type: ECC engine type
  * @mode:	ECC mode
  * @algo:	ECC algorithm
  * @steps:	number of ECC steps per page
@@ -365,6 +382,7 @@ static const struct nand_ecc_caps __name = {			\
  * @write_oob:	function to write chip OOB data
  */
 struct nand_ecc_ctrl {
+	enum nand_ecc_engine_type engine_type;
 	enum nand_ecc_mode mode;
 	enum nand_ecc_algo algo;
 	int steps;
-- 
2.30.2