Patch "mtd: nand: omap2: Fix partition creation via cmdline mtdparts" has been added to the 4.11-stable tree

This is a note to let you know that I've just added the patch titled

mtd: nand: omap2: Fix partition creation via cmdline mtdparts

to the 4.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mtd-nand-omap2-fix-partition-creation-via-cmdline-mtdparts.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Roger Quadros <[email protected]>
Date: Thu, 30 Mar 2017 10:37:50 +0300
Subject: mtd: nand: omap2: Fix partition creation via cmdline mtdparts

From: Roger Quadros <[email protected]>

commit 2d283ede59869159f4bb84ae689258c5caffce54 upstream.

commit c9711ec5250b ("mtd: nand: omap: Clean up device tree support") caused the parent device name to be changed from "omap2-nand.0" to "<base address>.nand" (e.g. 30000000.nand on omap3 platforms). This caused mtd->name to be changed as well. This breaks partition creation via mtdparts passed by u-boot as it uses "omap2-nand.0" for the mtd-id.

Fix this by explicitly setting the mtd->name to "omap2-nand.<CS number>" if it isn't already set by nand_set_flash_node(). CS number is the NAND controller instance ID.

---
 drivers/mtd/nand/omap2.c |    9 +++++++++
 1 file changed, 9 insertions(+)

@@ -1856,6 +1856,15 @@ static int omap_nand_probe(struct platfo
 	nand_chip->ecc.priv	= NULL;
 	nand_set_flash_node(nand_chip, dev->of_node);
 
+	if (!mtd->name) {
+		mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+					   "omap2-nand.%d", info->gpmc_cs);
+		if (!mtd->name) {
+			dev_err(&pdev->dev, "Failed to set MTD name\n");
+			return -ENOMEM;
+		}
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	nand_chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(nand_chip->IO_ADDR_R))

Patches currently in stable-queue which might be from [email protected] are

queue-4.11/mtd-nand-omap2-fix-partition-creation-via-cmdline-mtdparts.patch