From f679888f29fe5c4a4c44459f2c1fc62b72188773 Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@free-electrons.com>
Date: Tue, 19 Apr 2016 20:29:58 +0200
Subject: [PATCH] mtd: nand: omap2: rely on generic DT parsing done in
 nand_scan_ident()

The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
---
 drivers/memory/omap-gpmc.c |  4 ++--
 drivers/mtd/nand/omap2.c   | 18 +++++++-----------
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 33d69b1e4c31..af4884ba6b7c 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -27,7 +27,6 @@
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/of_mtd.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/omap-gpmc.h>
@@ -2066,7 +2065,8 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 
 	if (of_device_is_compatible(child, "ti,omap2-nand")) {
 		/* NAND specific setup */
-		val = of_get_nand_bus_width(child);
+		val = 8;
+		of_property_read_u32(child, "nand-bus-width", &val);
 		switch (val) {
 		case 8:
 			gpmc_s.device_width = GPMC_DEVWIDTH_8BIT;
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index e0b2b2f0fbde..c59bc85009d7 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -25,7 +25,6 @@
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
-#include <linux/of_mtd.h>
 
 #include <linux/mtd/nand_bch.h>
 #include <linux/platform_data/elm.h>
@@ -1701,7 +1700,7 @@ static int omap_get_dt_info(struct device *dev, struct omap_nand_info *info)
 		for (i = 0; i < ARRAY_SIZE(nand_xfer_types); i++) {
 			if (!strcasecmp(s, nand_xfer_types[i])) {
 				info->xfer_type = i;
-				goto next;
+				return 0;
 			}
 		}
 
@@ -1709,12 +1708,6 @@ static int omap_get_dt_info(struct device *dev, struct omap_nand_info *info)
 		return -EINVAL;
 	}
 
-next:
-	of_get_nand_on_flash_bbt(child);
-
-	if (of_get_nand_bus_width(child) == 16)
-		info->devsize = NAND_BUSWIDTH_16;
-
 	return 0;
 }
 
@@ -1810,9 +1803,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	if (info->flash_bbt)
-		nand_chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
-	else
-		nand_chip->options |= NAND_SKIP_BBTSCAN;
+		nand_chip->bbt_options |= NAND_BBT_USE_FLASH;
 
 	/* scan NAND device connected to chip controller */
 	nand_chip->options |= info->devsize & NAND_BUSWIDTH_16;
@@ -1823,6 +1814,11 @@ static int omap_nand_probe(struct platform_device *pdev)
 		goto return_error;
 	}
 
+	if (nand_chip->bbt_options & NAND_BBT_USE_FLASH)
+		nand_chip->bbt_options |= NAND_BBT_NO_OOB;
+	else
+		nand_chip->options |= NAND_SKIP_BBTSCAN;
+
 	/* re-populate low-level callbacks based on xfer modes */
 	switch (info->xfer_type) {
 	case NAND_OMAP_PREFETCH_POLLED:
-- 
2.39.5