linux-kernel - [PATCH 01/21] mtd: spinand: Use more specific naming for the reset op

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Message-Id: <20250307-winbond-6-14-rc1-octal-v1-1-45c1e074ad74@bootlin.com>
Date: Fri, 07 Mar 2025 16:08:20 +0100
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Richard Weinberger <richard@....at>, 
 Vignesh Raghavendra <vigneshr@...com>, Santhosh Kumar K <s-k6@...com>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <michael@...le.cc>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Steam Lin <stlin2@...bond.com>, linux-mtd@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH 01/21] mtd: spinand: Use more specific naming for the reset
 op

SPI operations have been initially described through macros implicitly
implying the use of a single SPI SDR bus. Macros for supporting dual and
quad I/O transfers have been added on top, generally inspired by vendor
vendor naming, followed by DTR operations. Soon we might see octal
and even octal DTR operations as well (including the opcode byte).

Let's clarify what the macro really means by describing the expected bus
topology in the reset macro name.

Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
 drivers/mtd/nand/spi/core.c | 2 +-
 include/linux/mtd/spinand.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 7a578f3522be93d30a9132cf01831515db77ae38..ea6b48242ad4a4e51c713907ce5cc55022cdb569 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -586,7 +586,7 @@ static int spinand_read_id_op(struct spinand_device *spinand, u8 naddr,
 
 static int spinand_reset_op(struct spinand_device *spinand)
 {
-	struct spi_mem_op op = SPINAND_RESET_OP;
+	struct spi_mem_op op = SPINAND_RESET_1S_0_0_OP;
 	int ret;
 
 	ret = spi_mem_exec_op(spinand->spimem, &op);
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 0da8a1c7740ef5cbbdb2a74858465136638224f4..4f47adbe4566d7813ffd8fbfaddd1a85d88d0208 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -20,7 +20,7 @@
  * Standard SPI NAND flash operations
  */
 
-#define SPINAND_RESET_OP						\
+#define SPINAND_RESET_1S_0_0_OP						\
 	SPI_MEM_OP(SPI_MEM_OP_CMD(0xff, 1),				\
 		   SPI_MEM_OP_NO_ADDR,					\
 		   SPI_MEM_OP_NO_DUMMY,					\

-- 
2.48.1