[PATCH 5/6] nand/denali: support MTD partitioning

[Jamie Iles <jamie@jamieiles.com>]

Allow the platform to specify partitions through platform data.  If
there are no partitions specified then the whole device will be
registered.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Chuanxiao Dong <chuanxiao.dong@intel.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
---
 drivers/mtd/nand/denali.c            |    8 +++++++-
 include/linux/platform_data/denali.h |    8 ++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index fb8e49e..19998ed 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
 #include <linux/module.h>
 #include <linux/platform_data/denali.h>
 
@@ -1644,7 +1645,12 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto failed_req_irq;
 	}
 
-	ret = mtd_device_register(&denali->mtd, NULL, 0);
+	if (pdata && pdata->parts)
+		ret = mtd_device_register(&denali->mtd, pdata->parts,
+					 pdata->nr_parts);
+	else
+		ret = mtd_device_register(&denali->mtd, NULL, 0);
+
 	if (ret) {
 		dev_err(denali->dev, "Spectra: Failed to register MTD: %d\n",
 				ret);
diff --git a/include/linux/platform_data/denali.h b/include/linux/platform_data/denali.h
index 3767333..141da35 100644
--- a/include/linux/platform_data/denali.h
+++ b/include/linux/platform_data/denali.h
@@ -14,9 +14,13 @@
 #ifndef __DENALI_PDATA_H__
 #define __DENALI_PDATA_H__
 
+struct mtd_partition;
+
 struct denali_nand_pdata {
-	int	nr_ecc_bits;
-	bool	have_hw_ecc_fixup;
+	int				nr_ecc_bits;
+	bool				have_hw_ecc_fixup;
+	const struct mtd_partition	*parts;
+	unsigned int			nr_parts;
 };
 
 #endif /* __DENALI_PDATA_H__ */
-- 
1.7.4.1