[PATCH v2 01/19] mtd: rawnand: Propage CS selection to sub operations

[Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>]

Some controller using the instruction parse infrastructure might need
to know which CS a specific sub-operation is targeting. Let's propagate
this information.

Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Reviewed-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
Changes in v2:
* Add R-b
---
 drivers/mtd/nand/raw/nand_base.c | 3 ++-
 include/linux/mtd/rawnand.h      | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 3a0e85ebcbe3..1cb5cf7a049a 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -2119,7 +2119,7 @@ static void nand_op_parser_trace(const struct nand_op_parser_ctx *ctx)
 	char *prefix = "      ";
 	unsigned int i;
 
-	pr_debug("executing subop:\n");
+	pr_debug("executing subop (CS%d):\n", ctx->subop.cs);
 
 	for (i = 0; i < ctx->ninstrs; i++) {
 		instr = &ctx->instrs[i];
@@ -2183,6 +2183,7 @@ int nand_op_parser_exec_op(struct nand_chip *chip,
 			   const struct nand_operation *op, bool check_only)
 {
 	struct nand_op_parser_ctx ctx = {
+		.subop.cs = op->cs,
 		.subop.instrs = op->instrs,
 		.instrs = op->instrs,
 		.ninstrs = op->ninstrs,
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index e26a87b0fbd9..c92de1fa4eaf 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -702,6 +702,7 @@ struct nand_op_instr {
 
 /**
  * struct nand_subop - a sub operation
+ * @cs: the CS line to select for this NAND sub-operation
  * @instrs: array of instructions
  * @ninstrs: length of the @instrs array
  * @first_instr_start_off: offset to start from for the first instruction
@@ -718,6 +719,7 @@ struct nand_op_instr {
  * controller driver.
  */
 struct nand_subop {
+	unsigned int cs;
 	const struct nand_op_instr *instrs;
 	unsigned int ninstrs;
 	unsigned int first_instr_start_off;
-- 
2.25.3


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