From mboxrd@z Thu Jan 1 00:00:00 1970 From: grant.likely@secretlab.ca (Grant Likely) Date: Thu, 15 Nov 2012 13:19:26 +0000 Subject: [PATCH 1/1] mtd: physmap_of: allow to specify the mtd name for retro compatiblity In-Reply-To: <1352062641-31850-1-git-send-email-plagnioj@jcrosoft.com> References: <1352062641-31850-1-git-send-email-plagnioj@jcrosoft.com> Message-ID: <20121115131926.47F853E0B12@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, 4 Nov 2012 21:57:21 +0100, Jean-Christophe PLAGNIOL-VILLARD wrote: > 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. Ummm. I don't follow. Could you explain more about how this change will be used? Thanks, g. > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD > --- > Documentation/devicetree/bindings/mtd/mtd-physmap.txt | 3 +++ > drivers/mtd/maps/physmap_of.c | 5 ++++- > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt > index 94de19b..dab7847 100644 > --- a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt > +++ b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt > @@ -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: > diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c > index 6f19aca..9a8db0c 100644 > --- a/drivers/mtd/maps/physmap_of.c > +++ b/drivers/mtd/maps/physmap_of.c > @@ -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 ? 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); > -- > 1.7.10.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- Grant Likely, B.Sc, P.Eng. Secret Lab Technologies, Ltd.