mtd: Update the way partitions are parsed

In case mtd_info's dev field is not populated (raw nand's case),
use the flash_node new field which reference the DT flash node where
can be found "partitions" node with "fixed-partitions" compatible.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Farhan Ali <farhan.ali@broadcom.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Marek Behun <marek.behun@nic.cz>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Wolfgang Denk <wd@denx.de>

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 4119ea4..d077897 100644 (file)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -887,10 +887,14 @@ int add_mtd_partitions_of(struct mtd_info *master)
        ofnode parts, child;
        int i = 0;
 
-       if (!master->dev)
+       if (!master->dev && !ofnode_valid(master->flash_node))
                return 0;
 
-       parts = ofnode_find_subnode(mtd_get_ofnode(master), "partitions");
+       if (master->dev)
+               parts = ofnode_find_subnode(mtd_get_ofnode(master), "partitions");
+       else
+               parts = ofnode_find_subnode(master->flash_node, "partitions");
+
        if (!ofnode_valid(parts) || !ofnode_is_available(parts) ||
            !ofnode_device_is_compatible(parts, "fixed-partitions"))
                return 0;