[PATCH v2 3/3] mtd: spi-nor: sfdp: Use SFDP_DWORD() macro for optional parameter tables

[tkuw584924@gmail.com]

From: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>

Change 0-based indexing values of parameter tables to 1-based ones by
SFDP_DWORD() macro.

Suggested-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
---
 drivers/mtd/spi-nor/sfdp.c | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 5c2ab868707b..3acc01c3a900 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -1004,7 +1004,7 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
 
 		discard_hwcaps |= read->hwcaps;
 		if ((params->hwcaps.mask & read->hwcaps) &&
-		    (dwords[0] & read->supported_bit))
+		    (dwords[SFDP_DWORD(1)] & read->supported_bit))
 			read_hwcaps |= read->hwcaps;
 	}
 
@@ -1023,7 +1023,7 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
 		 * authority for specifying Page Program support.
 		 */
 		discard_hwcaps |= program->hwcaps;
-		if (dwords[0] & program->supported_bit)
+		if (dwords[SFDP_DWORD(1)] & program->supported_bit)
 			pp_hwcaps |= program->hwcaps;
 	}
 
@@ -1035,7 +1035,7 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
 	for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++) {
 		const struct sfdp_4bait *erase = &erases[i];
 
-		if (dwords[0] & erase->supported_bit)
+		if (dwords[SFDP_DWORD(1)] & erase->supported_bit)
 			erase_mask |= BIT(i);
 	}
 
@@ -1086,7 +1086,7 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
 
 	for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++) {
 		if (erase_mask & BIT(i))
-			erase_type[i].opcode = (dwords[1] >>
+			erase_type[i].opcode = (dwords[SFDP_DWORD(2)] >>
 						erase_type[i].idx * 8) & 0xFF;
 		else
 			spi_nor_set_erase_type(&erase_type[i], 0u, 0xFF);
@@ -1145,15 +1145,15 @@ static int spi_nor_parse_profile1(struct spi_nor *nor,
 	le32_to_cpu_array(dwords, profile1_header->length);
 
 	/* Get 8D-8D-8D fast read opcode and dummy cycles. */
-	opcode = FIELD_GET(PROFILE1_DWORD1_RD_FAST_CMD, dwords[0]);
+	opcode = FIELD_GET(PROFILE1_DWORD1_RD_FAST_CMD, dwords[SFDP_DWORD(1)]);
 
 	 /* Set the Read Status Register dummy cycles and dummy address bytes. */
-	if (dwords[0] & PROFILE1_DWORD1_RDSR_DUMMY)
+	if (dwords[SFDP_DWORD(1)] & PROFILE1_DWORD1_RDSR_DUMMY)
 		nor->params->rdsr_dummy = 8;
 	else
 		nor->params->rdsr_dummy = 4;
 
-	if (dwords[0] & PROFILE1_DWORD1_RDSR_ADDR_BYTES)
+	if (dwords[SFDP_DWORD(1)] & PROFILE1_DWORD1_RDSR_ADDR_BYTES)
 		nor->params->rdsr_addr_nbytes = 4;
 	else
 		nor->params->rdsr_addr_nbytes = 0;
@@ -1167,13 +1167,16 @@ static int spi_nor_parse_profile1(struct spi_nor *nor,
 	 * Default to PROFILE1_DUMMY_DEFAULT if we don't find anything, and let
 	 * flashes set the correct value if needed in their fixup hooks.
 	 */
-	dummy = FIELD_GET(PROFILE1_DWORD4_DUMMY_200MHZ, dwords[3]);
+	dummy = FIELD_GET(PROFILE1_DWORD4_DUMMY_200MHZ, dwords[SFDP_DWORD(4)]);
 	if (!dummy)
-		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_166MHZ, dwords[4]);
+		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_166MHZ,
+				  dwords[SFDP_DWORD(5)]);
 	if (!dummy)
-		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_133MHZ, dwords[4]);
+		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_133MHZ,
+				  dwords[SFDP_DWORD(5)]);
 	if (!dummy)
-		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_100MHZ, dwords[4]);
+		dummy = FIELD_GET(PROFILE1_DWORD5_DUMMY_100MHZ,
+				  dwords[SFDP_DWORD(5)]);
 	if (!dummy)
 		dev_dbg(nor->dev,
 			"Can't find dummy cycles from Profile 1.0 table\n");
@@ -1228,7 +1231,8 @@ static int spi_nor_parse_sccr(struct spi_nor *nor,
 
 	le32_to_cpu_array(dwords, sccr_header->length);
 
-	if (FIELD_GET(SCCR_DWORD22_OCTAL_DTR_EN_VOLATILE, dwords[21]))
+	if (FIELD_GET(SCCR_DWORD22_OCTAL_DTR_EN_VOLATILE,
+		      dwords[SFDP_DWORD(22)]))
 		nor->flags |= SNOR_F_IO_MODE_EN_VOLATILE;
 
 out:
-- 
2.25.1


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/