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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Brian: dropped a defunct comment]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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struct nand_chip now embeds an mtd device. Make use of this mtd instance
instead of allocating our own.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Define and use mtd_to_omap() instead of container_of();
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Create and use mtd_to_nuc900() instead of direct container_of() calls.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Create and use mtd_to_fsmc() to avoid duplication of
container_of(mtd, struct fsmc_nand_data, mtd) calls.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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When CONFIG_LPAE is set on ARM, resource_size_t is 64-bit wide
and we get a warning about an incorrect format string for printing
the interrupt number in elm_probe:
drivers/mtd/nand/omap_elm.c: In function 'elm_probe':
drivers/mtd/nand/omap_elm.c:417:23: warning: format '%i' expects argument of type 'int', but argument 3 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
This patch avoids the type mismatch by printing the interrupt as
a resource using the %pr format string.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The field bcma_nflash::mtd is never set to be non-zero anywhere, but we
test for it in the removal path. So the MTD is never unregistered.
Also, we should use nand_release(), not mtd_device_unregister().
Finally, we don't need to use the 'platdata' for stashing/retrieving our
*driver* data -- that's what *_{get,set}_drvdata() are for.
So, kill off bcm_nflash::mtd, and stash the struct bcm47xxnflash in
drvdata instead. Also move the forward declaration of mtd_info up a bit,
since struct bcma_sflash should be using it.
Caught while inspecting other changes being made to this driver. Compile
tested only.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: "Rafał Miłecki" <zajec5@gmail.com>
Cc: linux-wireless@vger.kernel.org
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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Unregister the NAND device from the NAND subsystem when removing a denali
NAND controller, otherwise the MTD attached to the NAND device is still
exposed by the MTD layer, and accesses to this device will likely crash
the system.
Fixes: 2a0a288ec258 ("mtd: denali: split the generic driver and PCI layer")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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devm_ioremap_resource() does error checking on the 'res' argument, so
drop the error check in bcm6368_nand.c.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: Simon Arlott <simon@fire.lp0.eu>
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The BCM6368 has a NAND interrupt register with combined status and enable
registers.
As the BCM6328, BCM6362 and BCM6368 all use v2.1 controllers, the first
variant that will work with this driver is the BCM63268 using a v4.0
controller.
Set up the device by disabling and acking all interrupts, then handle
the CTRL_READY interrupt.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Attempt to enable a clock named "nand" as some SoCs have a clock for the
controller that needs to be enabled.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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As of commit a521422ea4ae6128 ("ARM: shmobile: mackerel: Remove Legacy C
board code"), the Renesas SuperH FLCTL driver is no longer used on ARM
SH-Mobile SoCs. Restrict the dependencies, unless compile-testing.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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We should better check the return value from read_sr() and
propagate it in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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If partition parsers need to clean up their resources, we shouldn't
assume that all memory will fit in a single kmalloc() that the caller
can kfree(). We should allow the parser to provide a proper cleanup
routine.
Note that this means we need to keep a hold on the parser's module for a
bit longer, and release it later with mtd_part_parser_put().
Alongside this, define a default callback that we'll automatically use
if the parser doesn't provide one, so we can still retain the old
behavior.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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For some of the core partitioning code, it helps to keep info about the
parsed partition (and who parsed them) together in one place.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The use of kmemdup() complicates the error handling a bit. We don't
actually need to allocate new memory, since this reference is treated as
const, and it is copied into new memory by the partition registration
code anyway. So remove it.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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We're going to reuse put_partition_parser(), so let's fix up the prefix
naming a bit, to hopefully be more consistent. Also make convert to a
true C function instead of a macro.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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We only want to modify these arrays inside the parser "drivers", so the
drivers should construct them however they like, then return them as
immutable arrays.
This will make other refactorings easier.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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It's easier to refactor these parsers if the return value gets assigned
only once, just like every other MTD partition parser.
This prepares for making the second arg to the parse_fn() const. This is
OK if we construct the partitions completely first, and assign them to
the return pointer only after we're done modifying them.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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A few MAINTAINERS updates, and some DT binding/documentation fixups.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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mtd_to_nand() was recently introduced to avoid direct accesses to the
mtd->priv field. Update all NAND drivers to use it.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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mtd_to_nand() was recently introduced to avoid direct access to the
mtd->priv field. Update core code to use mtd_to_nand().
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.
Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
free_irq(irq, ...);
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The documenting comment of mtd_erase in mtdcore.c states:
Device drivers are supposed to call instr->callback() whenever
the operation completes, even if it completes with a failure.
Currently the callback isn't called in case of failure. Fix this.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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As of commit 807f16d4db95 ("mtd: core: set some defaults when
dev.parent is set"), the MTD core will set this for us.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Bayi Cheng <bayi.cheng@mediatek.com>
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We can guard against reorganization of struct mtd_part by using
container_of(). We can also make sure we're using the right pointer
types by making this a static inline function instead of a macro.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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We don't actually need to stash a copy of this device_node indefinitely;
we only need it in brcmnand_init_cs().
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: <bcm-kernel-feedback-list@broadcom.com>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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