Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "First cycle with Boris as NAND maintainer! Many (most) bullets stolen
  from him.

  Generic:
   - Migrated NAND LED trigger to be a generic MTD trigger

  NAND:
   - Introduction of the "ECC algorithm" concept, to avoid overloading
     the ECC mode field too much more
   - Replaced the nand_ecclayout infrastructure with something a little
     more flexible (finally!) and future proof
   - Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some
     of this into their own tree as well
   - Prepare the sunxi NAND driver to receive DMA support
   - Handle bitflips in erased pages on GPMI revisions that do not
     support this in hardware.

  SPI NOR:
   - Start using the spi_flash_read() API for SPI drivers that support
     it (i.e., SPI drivers with special memory-mapped flash modes)

  And other small scattered improvments"

* tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd: (155 commits)
  mtd: spi-nor: support GigaDevice gd25lq64c
  mtd: nand_bch: fix spelling of "probably"
  mtd: brcmnand: respect ECC algorithm set by NAND subsystem
  gpmi-nand: Handle ECC Errors in erased pages
  Documentation: devicetree: deprecate "soft_bch" nand-ecc-mode value
  mtd: nand: add support for "nand-ecc-algo" DT property
  mtd: mtd: drop NAND_ECC_SOFT_BCH enum value
  mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping
  mtd: nand: read ECC algorithm from the new field
  mtd: nand: fsmc: validate ECC setup by checking algorithm directly
  mtd: nand: set ECC algorithm to Hamming on fallback
  staging: mt29f_spinand: set ECC algorithm explicitly
  CRIS v32: nand: set ECC algorithm explicitly
  mtd: nand: atmel: set ECC algorithm explicitly
  mtd: nand: davinci: set ECC algorithm explicitly
  mtd: nand: bf5xx: set ECC algorithm explicitly
  mtd: nand: omap2: Fix high memory dma prefetch transfer
  mtd: nand: omap2: Start dma request before enabling prefetch
  mtd: nandsim: add __init attribute
  mtd: nand: move of_get_nand_xxx() helpers into nand_base.c
  ...

1 files changed, 31 insertions, 18 deletions

diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 163f21a1298d..e389009fca42 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -42,23 +42,33 @@ static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
 static int enable_hw_ecc;
 static int enable_read_hw_ecc;
 
-static struct nand_ecclayout spinand_oob_64 = {
-	.eccbytes = 24,
-	.eccpos = {
-		1, 2, 3, 4, 5, 6,
-		17, 18, 19, 20, 21, 22,
-		33, 34, 35, 36, 37, 38,
-		49, 50, 51, 52, 53, 54, },
-	.oobfree = {
-		{.offset = 8,
-			.length = 8},
-		{.offset = 24,
-			.length = 8},
-		{.offset = 40,
-			.length = 8},
-		{.offset = 56,
-			.length = 8},
-	}
+static int spinand_ooblayout_64_ecc(struct mtd_info *mtd, int section,
+				    struct mtd_oob_region *oobregion)
+{
+	if (section > 3)
+		return -ERANGE;
+
+	oobregion->offset = (section * 16) + 1;
+	oobregion->length = 6;
+
+	return 0;
+}
+
+static int spinand_ooblayout_64_free(struct mtd_info *mtd, int section,
+				     struct mtd_oob_region *oobregion)
+{
+	if (section > 3)
+		return -ERANGE;
+
+	oobregion->offset = (section * 16) + 8;
+	oobregion->length = 8;
+
+	return 0;
+}
+
+static const struct mtd_ooblayout_ops spinand_oob_64_ops = {
+	.ecc = spinand_ooblayout_64_ecc,
+	.free = spinand_ooblayout_64_free,
 };
 #endif
 
@@ -886,11 +896,11 @@ static int spinand_probe(struct spi_device *spi_nand)
 
 	chip->ecc.strength = 1;
 	chip->ecc.total	= chip->ecc.steps * chip->ecc.bytes;
-	chip->ecc.layout = &spinand_oob_64;
 	chip->ecc.read_page = spinand_read_page_hwecc;
 	chip->ecc.write_page = spinand_write_page_hwecc;
 #else
 	chip->ecc.mode	= NAND_ECC_SOFT;
+	chip->ecc.algo	= NAND_ECC_HAMMING;
 	if (spinand_disable_ecc(spi_nand) < 0)
 		dev_info(&spi_nand->dev, "%s: disable ecc failed!\n",
 			 __func__);
@@ -912,6 +922,9 @@ static int spinand_probe(struct spi_device *spi_nand)
 
 	mtd->dev.parent = &spi_nand->dev;
 	mtd->oobsize = 64;
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	mtd_set_ooblayout(mtd, &spinand_oob_64_ops);
+#endif
 
 	if (nand_scan(mtd, 1))
 		return -ENXIO;