mtd: omap-nand: pass device_node in platform data

Pass an optional device_node pointer in the platform data, which in turn
will be put into a mtd_part_parser_data. This way, code that sets up the
platform devices can pass along the node from DT so that the partitions
can be parsed.

For non-DT boards, this change has no effect.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 6 insertions, 2 deletions

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 0002d5e94f0d..1d333497cfcb 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1332,6 +1332,7 @@ static int omap_nand_probe(struct platform_device *pdev)
         dma_cap_mask_t mask;
         unsigned sig;
         struct resource                 *res;
+        struct mtd_part_parser_data     ppdata = {};
 
         pdata = pdev->dev.platform_data;
         if (pdata == NULL) {
@@ -1557,7 +1558,8 @@ static int omap_nand_probe(struct platform_device *pdev)
                 goto out_release_mem_region;
         }
 
-        mtd_device_parse_register(&info->mtd, NULL, NULL, pdata->parts,
+        ppdata.of_node = pdata->of_node;
+        mtd_device_parse_register(&info->mtd, NULL, &ppdata, pdata->parts,
                                   pdata->nr_parts);
 
         platform_set_drvdata(pdev, &info->mtd);
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 24d32ca34bef..6bf9ef43ddb1 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -60,6 +60,8 @@ struct omap_nand_platform_data {
         int                     devsize;
         enum omap_ecc           ecc_opt;
         struct gpmc_nand_regs   reg;
-};
 
+        /* for passing the partitions */
+        struct device_node      *of_node;
+};
 #endif