Merge tag 'nand/for-4.13' into MTD

From Boris:
"""
This pull request contains the following core changes:

* addition of on-ecc support to Micron driver
* addition of helpers to help drivers choose most appropriate ECC
  settings
* deletion of dead-code (cached programming and ->errstat() hook)
* make sure drivers that do not support the SET/GET FEATURES command
  return ENOTSUPP use a dummy ->set/get_features implementation
  returning -ENOTSUPP (required for Micron on-die ECC)
* change the semantic of ecc->write_page() for drivers setting the
  NAND_ECC_CUSTOM_PAGE_ACCESS flag
* support exiting 'GET STATUS' command in default ->cmdfunc()
  implementations
* change the prototype of ->setup_data_interface()

A bunch of driver related changes:

* various cleanup, fixes and improvements of the MTK driver
* OMAP DT bindings fixes
* support for ->setup_data_interface() in the fsmc driver
* support for imx7 in the gpmi driver
* finalization of the denali driver rework (thanks to Masahiro for the
  work he's done on this driver)
* fix "bitflips in erased pages" handling in the ifc driver
* addition of PM ops and dynamic timing configuration to the atmel
  driver

And as usual we also have a few minor cleanup/fixes/improvements
patches across the subsystem.
"""

1 files changed, 16 insertions, 6 deletions

diff --git a/drivers/mtd/nand/tango_nand.c b/drivers/mtd/nand/tango_nand.c
index 49b286c6c10f..9d40b793b1c4 100644
--- a/drivers/mtd/nand/tango_nand.c
+++ b/drivers/mtd/nand/tango_nand.c
@@ -303,7 +303,7 @@ static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 			    const u8 *buf, int oob_required, int page)
 {
 	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
-	int err, len = mtd->writesize;
+	int err, status, len = mtd->writesize;
 
 	/* Calling tango_write_oob() would send PAGEPROG twice */
 	if (oob_required)
@@ -314,6 +314,10 @@ static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 	if (err)
 		return err;
 
+	status = chip->waitfunc(mtd, chip);
+	if (status & NAND_STATUS_FAIL)
+		return -EIO;
+
 	return 0;
 }
 
@@ -340,7 +344,7 @@ static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
 
 	if (!*buf) {
 		/* skip over "len" bytes */
-		chip->cmdfunc(mtd, NAND_CMD_SEQIN, *pos, -1);
+		chip->cmdfunc(mtd, NAND_CMD_RNDIN, *pos, -1);
 	} else {
 		tango_write_buf(mtd, *buf, len);
 		*buf += len;
@@ -431,9 +435,16 @@ static int tango_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 static int tango_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 				const u8 *buf, int oob_required, int page)
 {
+	int status;
+
 	chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0, page);
 	raw_write(chip, buf, chip->oob_poi);
 	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+	status = chip->waitfunc(mtd, chip);
+	if (status & NAND_STATUS_FAIL)
+		return -EIO;
+
 	return 0;
 }
 
@@ -484,9 +495,8 @@ static u32 to_ticks(int kHz, int ps)
 	return DIV_ROUND_UP_ULL((u64)kHz * ps, NSEC_PER_SEC);
 }
 
-static int tango_set_timings(struct mtd_info *mtd,
-			     const struct nand_data_interface *conf,
-			     bool check_only)
+static int tango_set_timings(struct mtd_info *mtd, int csline,
+			     const struct nand_data_interface *conf)
 {
 	const struct nand_sdr_timings *sdr = nand_get_sdr_timings(conf);
 	struct nand_chip *chip = mtd_to_nand(mtd);
@@ -498,7 +508,7 @@ static int tango_set_timings(struct mtd_info *mtd,
 	if (IS_ERR(sdr))
 		return PTR_ERR(sdr);
 
-	if (check_only)
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
 		return 0;
 
 	Trdy = to_ticks(kHz, sdr->tCEA_max - sdr->tREA_max);