OF: MTD: make plat_nand loadable from DT

This patch sets the of_match_table field inside plat_nand's platform_driver.
We also add a struct mtd_part_parser_data pointer to make sure of_part parsing
works.

If an arch wants to support plat_nand via DT it needs to setup the
platform_nand_data and hook it into the platform_device.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 15 insertions, 6 deletions

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 585639947f5d..fd2d2a1b78ba 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -31,6 +31,7 @@ static const char *part_probe_types[] = { "cmdlinepart", NULL };
 static int __devinit plat_nand_probe(struct platform_device *pdev)
 {
         struct platform_nand_data *pdata = pdev->dev.platform_data;
+        struct mtd_part_parser_data ppdata;
         struct plat_nand_data *data;
         struct resource *res;
         const char **part_types;
@@ -103,7 +104,8 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
 
         part_types = pdata->chip.part_probe_types ? : part_probe_types;
 
-        err = mtd_device_parse_register(&data->mtd, part_types, NULL,
+        ppdata.of_node = pdev->dev.of_node;
+        err = mtd_device_parse_register(&data->mtd, part_types, &ppdata,
                                         pdata->chip.partitions,
                                         pdata->chip.nr_partitions);
 
@@ -144,12 +146,19 @@ static int __devexit plat_nand_remove(struct platform_device *pdev)
         return 0;
 }
 
+static const struct of_device_id plat_nand_match[] = {
+        { .compatible = "gen_nand" },
+        {},
+};
+MODULE_DEVICE_TABLE(of, plat_nand_match);
+
 static struct platform_driver plat_nand_driver = {
-        .probe          = plat_nand_probe,
-        .remove         = __devexit_p(plat_nand_remove),
-        .driver         = {
-                .name   = "gen_nand",
-                .owner  = THIS_MODULE,
+        .probe  = plat_nand_probe,
+        .remove = __devexit_p(plat_nand_remove),
+        .driver = {
+                .name           = "gen_nand",
+                .owner          = THIS_MODULE,
+                .of_match_table = plat_nand_match,
         },
 };