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Commit d68cbdd4 authored by Jean-Christophe PLAGNIOL-VILLARD's avatar Jean-Christophe PLAGNIOL-VILLARD Committed by Artem Bityutskiy
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mtd: physmap_of: allow to specify the mtd name for retro compatiblity 



linux,mtd-name allow to specify the mtd name for retro capability with
physmap-flash drivers as boot loader pass the mtd partition via the old
device name physmap-flash.

Signed-off-by: default avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
parent d6ba745d

Documentation/devicetree/bindings/mtd/mtd-physmap.txt

+3 −0
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ file systems on embedded devices. 
   unaligned accesses as implemented in the JFFS2 code via memcpy().

   By defining "no-unaligned-direct-access", the flash will not be

   exposed directly to the MTD users (e.g. JFFS2) any more.

 - linux,mtd-name: allow to specify the mtd name for retro capability with

   physmap-flash drivers as boot loader pass the mtd partition via the old

   device name physmap-flash.



For JEDEC compatible devices, the following additional properties

are defined:

drivers/mtd/maps/physmap_of.c

+4 −1
Original line number Diff line number Diff line
@@ -170,6 +170,7 @@ static int __devinit of_flash_probe(struct platform_device *dev) 
	resource_size_t res_size;

	struct mtd_part_parser_data ppdata;

	bool map_indirect;

	const char *mtd_name;



	match = of_match_device(of_flash_match, &dev->dev);

	if (!match)
@@ -178,6 +179,8 @@ static int __devinit of_flash_probe(struct platform_device *dev) 


	reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32);



	of_property_read_string(dp, "linux,mtd-name", &mtd_name);



	/*

	 * Get number of "reg" tuples. Scan for MTD devices on area's

	 * described by each "reg" region. This makes it possible (including
@@ -234,7 +237,7 @@ static int __devinit of_flash_probe(struct platform_device *dev) 
			goto err_out;

		}



		info->list[i].map.name = dev_name(&dev->dev);

		info->list[i].map.name = mtd_name ?: dev_name(&dev->dev);

		info->list[i].map.phys = res.start;

		info->list[i].map.size = res_size;

		info->list[i].map.bankwidth = be32_to_cpup(width);