Merge tag 'nand/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

Core changes:
* Drop useless 'depends on' in Kconfig
* Add an extra level in the Kconfig hierarchy
* Trivial spellings
* Dynamic allocation of the interface configurations
* Dropping the default ONFI timing mode
* Various cleanup (types, structures, naming, comments)
* Hide the chip->data_interface indirection
* Add the generic rb-gpios property
* Add the ->choose_interface_config() hook
* Introduce nand_choose_best_sdr_timings()
* Use default values for tPROG_max and tBERS_max
* Avoid redefining tR_max and tCCS_min
* Add a helper to find the closest ONFI mode
* bcm63xx MTD parsers: simplify CFE detection

Raw NAND controller drivers changes:
* fsl-upm: Deprecation of specific DT properties
* fsl_upm: Driver rework and cleanup in favor of ->exec_op()
* Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
* brcmnand: ECC error handling on EDU transfers
* brcmnand: Don't default to EDU transfers
* qcom: Set BAM mode only if not set already
* qcom: Avoid write to unavailable register
* gpio: Driver rework in favor of ->exec_op()
* tango: ->exec_op() conversion
* mtk: ->exec_op() conversion

Raw NAND chip drivers changes:
* toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
* toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
* toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
* hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC

1 files changed, 70 insertions, 2 deletions

diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c
index ae069905d7e4..f746c19f3b2c 100644
--- a/drivers/mtd/nand/raw/nand_toshiba.c
+++ b/drivers/mtd/nand/raw/nand_toshiba.c
@@ -33,7 +33,7 @@ static int toshiba_nand_benand_read_eccstatus_op(struct nand_chip *chip,
 
 	if (nand_has_exec_op(chip)) {
 		const struct nand_sdr_timings *sdr =
-			nand_get_sdr_timings(&chip->data_interface);
+			nand_get_sdr_timings(nand_get_interface_config(chip));
 		struct nand_op_instr instrs[] = {
 			NAND_OP_CMD(TOSHIBA_NAND_CMD_ECC_STATUS_READ,
 				    PSEC_TO_NSEC(sdr->tADL_min)),
@@ -194,17 +194,79 @@ static void toshiba_nand_decode_id(struct nand_chip *chip)
 	}
 }
 
+static int
+tc58teg5dclta00_choose_interface_config(struct nand_chip *chip,
+					struct nand_interface_config *iface)
+{
+	onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 5);
+
+	return nand_choose_best_sdr_timings(chip, iface, NULL);
+}
+
+static int
+tc58nvg0s3e_choose_interface_config(struct nand_chip *chip,
+				    struct nand_interface_config *iface)
+{
+	onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 2);
+
+	return nand_choose_best_sdr_timings(chip, iface, NULL);
+}
+
+static int
+th58nvg2s3hbai4_choose_interface_config(struct nand_chip *chip,
+					struct nand_interface_config *iface)
+{
+	struct nand_sdr_timings *sdr = &iface->timings.sdr;
+
+	/* Start with timings from the closest timing mode, mode 4. */
+	onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 4);
+
+	/* Patch timings that differ from mode 4. */
+	sdr->tALS_min = 12000;
+	sdr->tCHZ_max = 20000;
+	sdr->tCLS_min = 12000;
+	sdr->tCOH_min = 0;
+	sdr->tDS_min = 12000;
+	sdr->tRHOH_min = 25000;
+	sdr->tRHW_min = 30000;
+	sdr->tRHZ_max = 60000;
+	sdr->tWHR_min = 60000;
+
+	/* Patch timings not part of onfi timing mode. */
+	sdr->tPROG_max = 700000000;
+	sdr->tBERS_max = 5000000000;
+
+	return nand_choose_best_sdr_timings(chip, iface, sdr);
+}
+
 static int tc58teg5dclta00_init(struct nand_chip *chip)
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
 
-	chip->onfi_timing_mode_default = 5;
+	chip->ops.choose_interface_config =
+		&tc58teg5dclta00_choose_interface_config;
 	chip->options |= NAND_NEED_SCRAMBLING;
 	mtd_set_pairing_scheme(mtd, &dist3_pairing_scheme);
 
 	return 0;
 }
 
+static int tc58nvg0s3e_init(struct nand_chip *chip)
+{
+	chip->ops.choose_interface_config =
+		&tc58nvg0s3e_choose_interface_config;
+
+	return 0;
+}
+
+static int th58nvg2s3hbai4_init(struct nand_chip *chip)
+{
+	chip->ops.choose_interface_config =
+		&th58nvg2s3hbai4_choose_interface_config;
+
+	return 0;
+}
+
 static int toshiba_nand_init(struct nand_chip *chip)
 {
 	if (nand_is_slc(chip))
@@ -217,6 +279,12 @@ static int toshiba_nand_init(struct nand_chip *chip)
 
 	if (!strcmp("TC58TEG5DCLTA00", chip->parameters.model))
 		tc58teg5dclta00_init(chip);
+	if (!strncmp("TC58NVG0S3E", chip->parameters.model,
+		     sizeof("TC58NVG0S3E") - 1))
+		tc58nvg0s3e_init(chip);
+	if (!strncmp("TH58NVG2S3HBAI4", chip->parameters.model,
+		     sizeof("TH58NVG2S3HBAI4") - 1))
+		th58nvg2s3hbai4_init(chip);
 
 	return 0;
 }