linux-kernel - [PATCH v2 38/41] mtd: spi-nor: sst: sort flash

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Message-Id: <20230807-mtd-flash-info-db-rework-v2-38-291a0f39f8d8@kernel.org>
Date:   Tue, 22 Aug 2023 09:09:54 +0200
From:   Michael Walle <mwalle@...nel.org>
To:     Tudor Ambarus <tudor.ambarus@...aro.org>,
        Pratyush Yadav <pratyush@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        Michael Walle <mwalle@...nel.org>
Subject: [PATCH v2 38/41] mtd: spi-nor: sst: sort flash_info database

The flash ID is the new primary key into our database. Sort the entry by
it. Keep the most specific ones first, because there might be ID
collisions between shorter and longer ones.

Signed-off-by: Michael Walle <mwalle@...nel.org>
---
 drivers/mtd/spi-nor/sst.c | 90 +++++++++++++++++++++++------------------------
 1 file changed, 45 insertions(+), 45 deletions(-)

diff --git a/drivers/mtd/spi-nor/sst.c b/drivers/mtd/spi-nor/sst.c
index 77b271abd342..44d2a546bf17 100644
--- a/drivers/mtd/spi-nor/sst.c
+++ b/drivers/mtd/spi-nor/sst.c
@@ -62,38 +62,16 @@ static const struct spi_nor_fixups sst26vf_nor_fixups = {
 
 static const struct flash_info sst_nor_parts[] = {
 	{
-		.id = SNOR_ID(0xbf, 0x25, 0x8d),
-		.name = "sst25vf040b",
-		.size = SZ_512K,
-		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
-		.no_sfdp_flags = SECT_4K,
-		.mfr_flags = SST_WRITE,
-	}, {
-		.id = SNOR_ID(0xbf, 0x25, 0x8e),
-		.name = "sst25vf080b",
-		.size = SZ_1M,
-		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
-		.no_sfdp_flags = SECT_4K,
-		.mfr_flags = SST_WRITE,
-	}, {
-		.id = SNOR_ID(0xbf, 0x25, 0x41),
-		.name = "sst25vf016b",
-		.size = SZ_2M,
-		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
-		.no_sfdp_flags = SECT_4K,
-		.mfr_flags = SST_WRITE,
-	}, {
-		.id = SNOR_ID(0xbf, 0x25, 0x4a),
-		.name = "sst25vf032b",
-		.size = SZ_4M,
-		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
+		.id = SNOR_ID(0x62, 0x16, 0x12),
+		.name = "sst25wf020a",
+		.size = SZ_256K,
+		.flags = SPI_NOR_HAS_LOCK,
 		.no_sfdp_flags = SECT_4K,
-		.mfr_flags = SST_WRITE,
 	}, {
-		.id = SNOR_ID(0xbf, 0x25, 0x4b),
-		.name = "sst25vf064c",
-		.size = SZ_8M,
-		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_4BIT_BP | SPI_NOR_SWP_IS_VOLATILE,
+		.id = SNOR_ID(0x62, 0x16, 0x13),
+		.name = "sst25wf040b",
+		.size = SZ_512K,
+		.flags = SPI_NOR_HAS_LOCK,
 		.no_sfdp_flags = SECT_4K,
 	}, {
 		.id = SNOR_ID(0xbf, 0x25, 0x01),
@@ -116,18 +94,6 @@ static const struct flash_info sst_nor_parts[] = {
 		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
 		.no_sfdp_flags = SECT_4K,
 		.mfr_flags = SST_WRITE,
-	}, {
-		.id = SNOR_ID(0x62, 0x16, 0x12),
-		.name = "sst25wf020a",
-		.size = SZ_256K,
-		.flags = SPI_NOR_HAS_LOCK,
-		.no_sfdp_flags = SECT_4K,
-	}, {
-		.id = SNOR_ID(0x62, 0x16, 0x13),
-		.name = "sst25wf040b",
-		.size = SZ_512K,
-		.flags = SPI_NOR_HAS_LOCK,
-		.no_sfdp_flags = SECT_4K,
 	}, {
 		.id = SNOR_ID(0xbf, 0x25, 0x04),
 		.name = "sst25wf040",
@@ -143,10 +109,39 @@ static const struct flash_info sst_nor_parts[] = {
 		.no_sfdp_flags = SECT_4K,
 		.mfr_flags = SST_WRITE,
 	}, {
-		.id = SNOR_ID(0xbf, 0x26, 0x51),
-		.name = "sst26wf016b",
+		.id = SNOR_ID(0xbf, 0x25, 0x41),
+		.name = "sst25vf016b",
 		.size = SZ_2M,
-		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
+		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
+		.no_sfdp_flags = SECT_4K,
+		.mfr_flags = SST_WRITE,
+	}, {
+		.id = SNOR_ID(0xbf, 0x25, 0x4a),
+		.name = "sst25vf032b",
+		.size = SZ_4M,
+		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
+		.no_sfdp_flags = SECT_4K,
+		.mfr_flags = SST_WRITE,
+	}, {
+		.id = SNOR_ID(0xbf, 0x25, 0x4b),
+		.name = "sst25vf064c",
+		.size = SZ_8M,
+		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_4BIT_BP | SPI_NOR_SWP_IS_VOLATILE,
+		.no_sfdp_flags = SECT_4K,
+	}, {
+		.id = SNOR_ID(0xbf, 0x25, 0x8d),
+		.name = "sst25vf040b",
+		.size = SZ_512K,
+		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
+		.no_sfdp_flags = SECT_4K,
+		.mfr_flags = SST_WRITE,
+	}, {
+		.id = SNOR_ID(0xbf, 0x25, 0x8e),
+		.name = "sst25vf080b",
+		.size = SZ_1M,
+		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
+		.no_sfdp_flags = SECT_4K,
+		.mfr_flags = SST_WRITE,
 	}, {
 		.id = SNOR_ID(0xbf, 0x26, 0x41),
 		.name = "sst26vf016b",
@@ -164,6 +159,11 @@ static const struct flash_info sst_nor_parts[] = {
 		.flags = SPI_NOR_HAS_LOCK | SPI_NOR_SWP_IS_VOLATILE,
 		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 		.fixups = &sst26vf_nor_fixups,
+	}, {
+		.id = SNOR_ID(0xbf, 0x26, 0x51),
+		.name = "sst26wf016b",
+		.size = SZ_2M,
+		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 	}
 };
 

-- 
2.39.2