Miquel Raynal [Mon, 25 May 2020 08:58:47 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Free erase_block_wear on error
Free erase_block_wear on error, which is allocated by
ns_setup_wear_reporting().
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-14-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:46 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Use an additional label when freeing the nandsim object
Cosmetic change to give a meaning to all labels in this complicated
error path.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-13-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:45 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Stop using nand_release()
nand_release() basically calls mtd_device_unregister() and
nand_cleanup(). Both helpers should be called after MTD device
registration and NAND scan, respectively. Drop nand_release() and use
the two helpers directly so that they fit the error path and the
labels there.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-12-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:44 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Free the partition names in ns_free()
ns_free() is the helper that is called symmetrically to ns_init() and
so should free the same objects, including the partition names.
Now, callers of ns_free() do not need to free this partition names
themselves.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-11-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:43 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Free the allocated device on error in ns_init()
The nandsim device is allocated and initialized inside ns_init() by a
call to ns_alloc_device(), free it on error.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-10-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:42 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Free partition names on error in ns_init()
The ns_init() function shall free the partition names allocated by
ns_get_partition_name() on error.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-9-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:41 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Fix the two ns_alloc_device() error paths
The ns_alloc_device() helper has actually two distinct path. Handle
errors in both of them.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-8-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:40 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Remove debugfs entries at unload time
Create a ns_debugfs_remove() helper for that and call it in
ns_cleanup_module().
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-7-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:39 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Keep track of the created debugfs entries
Debugfs entries should be removed in the error path, so first, keep
track of them.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-6-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:38 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Clean error handling
Many function calls are done this way:
if ((retval = func()) != 0)
return retval;
while we expect in the kernel function calls like:
retval = func();
if (retval)
return retval;
Apply this change where possible and also use "ret" instead of
"retval" in ns_init_module for consistency, as it is only used in this
function.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-5-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:37 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Use a consistent ns_ prefix for all functions
Some functions are prefixed "nandsim_", others "ns_" and many are
simply not prefixed at all. Make this file consistent by prefixing all
functions by "ns_".
This is a mechanical change. Sometimes the line is a bit reworked as
well to fit the kernel coding style. For instance, there are several
places where displayed strings are cut. When one of this line is
changed because of the naming update, the two parts of the strings
gets concatenated.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-4-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:36 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Use octal permissions
Symbolic permissions 'S_IRUSR' are not preferred. Checkpatch.pl
advises to use octal permissions '0400'.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-3-miquel.raynal@bootlin.com
Miquel Raynal [Mon, 25 May 2020 08:58:35 +0000 (10:58 +0200)]
mtd: rawnand: nandsim: Consistent use of 'ns' instead of 'dev'
The nandsim object is called 'ns' almost everywhere, keep it that way
everywhere for consistency.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-2-miquel.raynal@bootlin.com
Álvaro Fernández Rojas [Fri, 22 May 2020 12:15:24 +0000 (14:15 +0200)]
mtd: rawnand: brcmnand: support v2.1-v2.2 controllers
v2.1: tested on Netgear DGND3700v1 (BCM6368)
v2.2: tested on Netgear DGND3700v2 (BCM6362)
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-6-noltari@gmail.com
Álvaro Fernández Rojas [Fri, 22 May 2020 12:15:23 +0000 (14:15 +0200)]
dt-bindings: mtd: brcmnand: add v2.1 and v2.2 support
Add brcm,brcmnand-v2.1 and brcm,brcmnand-v2.2 as possible compatible
strings to support brcmnand controllers v2.1 and v2.2.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-5-noltari@gmail.com
Álvaro Fernández Rojas [Fri, 22 May 2020 12:15:22 +0000 (14:15 +0200)]
mtd: rawnand: brcmnand: rename page sizes
Current pages sizes apply to controllers after v3.4
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-4-noltari@gmail.com
Álvaro Fernández Rojas [Fri, 22 May 2020 12:15:21 +0000 (14:15 +0200)]
mtd: rawnand: brcmnand: fix CS0 layout
Only v3.3-v5.0 have a different CS0 layout.
Controllers before v3.3 use the same layout for every CS.
Fixes:
27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-3-noltari@gmail.com
Álvaro Fernández Rojas [Fri, 22 May 2020 12:15:20 +0000 (14:15 +0200)]
mtd: rawnand: brcmnand: rename v4 registers
These registers are also used on v3.3.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522121524.4161539-2-noltari@gmail.com
Miquel Raynal [Fri, 8 May 2020 17:18:05 +0000 (19:18 +0200)]
mtd: rawnand: gpmi: Use nand_extract_bits()
Drop the use of gpmi_copy_bits() in favor of the NAND helper
nand_extract_bits().
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200508171805.8627-1-miquel.raynal@bootlin.com
Dinghao Liu [Fri, 22 May 2020 10:40:06 +0000 (18:40 +0800)]
mtd: rawnand: omap_elm: Fix runtime PM imbalance on error
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522104008.28340-1-dinghao.liu@zju.edu.cn
Dinghao Liu [Fri, 22 May 2020 10:17:13 +0000 (18:17 +0800)]
mtd: rawnand: gpmi: Fix runtime PM imbalance in gpmi_nand_probe
There is no reason that the failure of __gpmi_enable_clk()
could lead to PM usage counter decrement.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522101713.24350-1-dinghao.liu@zju.edu.cn
Dinghao Liu [Fri, 22 May 2020 09:51:39 +0000 (17:51 +0800)]
mtd: rawnand: gpmi: Fix runtime PM imbalance on error
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522095139.19653-1-dinghao.liu@zju.edu.cn
Boris Brezillon [Tue, 19 May 2020 23:24:54 +0000 (01:24 +0200)]
mtd: rawnand: ingenic: Convert the driver to exec_op()
Let's convert the driver to exec_op() to have one less driver relying
on the legacy interface.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519232454.374081-4-boris.brezillon@collabora.com
Boris Brezillon [Tue, 19 May 2020 23:24:53 +0000 (01:24 +0200)]
mtd: rawnand: ingenic: Fix the RB gpio active-high property on qi, lb60
The rb-gpios semantics was undocumented and qi,lb60 (along with the
ingenic driver) got it wrong. The active state encodes the NAND ready
state, which is high level. Since there's no signal inverter on this
board, it should be active-high. Let's fix that here for older DTs so
we can re-use the generic nand_gpio_waitrdy() helper, and be consistent
with what other drivers do.
Suggested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519232454.374081-3-boris.brezillon@collabora.com
Miquel Raynal [Tue, 19 May 2020 13:00:34 +0000 (15:00 +0200)]
mtd: rawnand: xway: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-62-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:33 +0000 (15:00 +0200)]
mtd: rawnand: xway: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-61-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:32 +0000 (15:00 +0200)]
mtd: rawnand: vf610: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Stefan Agner <stefan@agner.ch>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-60-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:31 +0000 (15:00 +0200)]
mtd: rawnand: txx9ndfmc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-59-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:30 +0000 (15:00 +0200)]
mtd: rawnand: tmio: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-58-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:29 +0000 (15:00 +0200)]
mtd: rawnand: tmio: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-57-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:28 +0000 (15:00 +0200)]
mtd: rawnand: tango: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-56-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:27 +0000 (15:00 +0200)]
mtd: rawnand: sunxi: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-55-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:26 +0000 (15:00 +0200)]
mtd: rawnand: sunxi: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
Fixes:
1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-54-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:25 +0000 (15:00 +0200)]
mtd: rawnand: stm32_fmc2: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Christophe Kerello <christophe.kerello@st.com>
Reviewed-by: Christophe Kerello <christophe.kerello@st.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-53-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:24 +0000 (15:00 +0200)]
mtd: rawnand: socrates: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-52-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:23 +0000 (15:00 +0200)]
mtd: rawnand: socrates: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-51-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:22 +0000 (15:00 +0200)]
mtd: rawnand: sharpsl: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-50-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:21 +0000 (15:00 +0200)]
mtd: rawnand: sharpsl: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-49-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:20 +0000 (15:00 +0200)]
mtd: rawnand: sh_flctl: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-48-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:19 +0000 (15:00 +0200)]
mtd: rawnand: s3c2410: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-47-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:18 +0000 (15:00 +0200)]
mtd: rawnand: r852: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-46-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:17 +0000 (15:00 +0200)]
mtd: rawnand: qcom: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-45-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:16 +0000 (15:00 +0200)]
mtd: rawnand: plat_nand: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-44-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:15 +0000 (15:00 +0200)]
mtd: rawnand: plat_nand: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible, hence pointing it as the commit to
fix for backporting purposes, even if this commit is not introducing
any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-43-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:14 +0000 (15:00 +0200)]
mtd: rawnand: pasemi: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-42-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:13 +0000 (15:00 +0200)]
mtd: rawnand: pasemi: Fix the probe error path
nand_cleanup() is supposed to be called on error after a successful
call to nand_scan() to free all NAND resources.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible, hence pointing it as the commit to
fix for backporting purposes, even if this commit is not introducing
any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-41-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:12 +0000 (15:00 +0200)]
mtd: rawnand: oxnas: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-40-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:11 +0000 (15:00 +0200)]
mtd: rawnand: oxnas: Release all devices in the _remove() path
oxnans_nand_remove() should release all MTD devices and clean all NAND
devices, not only the first one registered.
Fixes:
668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-39-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:10 +0000 (15:00 +0200)]
mtd: rawnand: oxnas: Unregister all devices on error
On error, the oxnas probe path just frees the device which failed and
aborts the probe, leaving unreleased resources.
Fix this situation by calling mtd_device_unregister()/nand_cleanup()
on these.
Fixes:
668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-38-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:09 +0000 (15:00 +0200)]
mtd: rawnand: oxnas: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
While at it, be consistent and move the function call in the error
path thanks to a goto statement.
Fixes:
668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-37-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:08 +0000 (15:00 +0200)]
mtd: rawnand: oxnas: Keep track of registered devices
All initialized and registered devices should be listed somewhere so
that we can unregister/free them in the _remove() path.
This patch is not a fix per-se but is needed to apply three other
fixes coming right after, explaining the Fixes/Cc: stable tags.
Fixes:
668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-36-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:07 +0000 (15:00 +0200)]
mtd: rawnand: orion: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-35-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:06 +0000 (15:00 +0200)]
mtd: rawnand: orion: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-34-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:05 +0000 (15:00 +0200)]
mtd: rawnand: omap2: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-33-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:04 +0000 (15:00 +0200)]
mtd: rawnand: ndfc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-32-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:03 +0000 (15:00 +0200)]
mtd: rawnand: mxic: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-31-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:02 +0000 (15:00 +0200)]
mtd: rawnand: mxc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-30-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:01 +0000 (15:00 +0200)]
mtd: rawnand: mtk: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-29-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:00:00 +0000 (15:00 +0200)]
mtd: rawnand: mtk: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if this commit is not
introducing any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-28-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:59 +0000 (14:59 +0200)]
mtd: rawnand: mpc5121: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-27-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:58 +0000 (14:59 +0200)]
mtd: rawnand: marvell: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-26-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:57 +0000 (14:59 +0200)]
mtd: rawnand: lpc32xx_slc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-25-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:56 +0000 (14:59 +0200)]
mtd: rawnand: lpc32xx_mlc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-24-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:55 +0000 (14:59 +0200)]
mtd: rawnand: ingenic: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-23-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:54 +0000 (14:59 +0200)]
mtd: rawnand: ingenic: Fix the probe error path
nand_release() is supposed be called after MTD device registration.
Here, only nand_scan() happened, so use nand_cleanup() instead.
There is no real Fixes tag applying here as the use of nand_release()
in this driver predates the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. Hence, pointing it as the commit to
fix for backporting purposes, even if this commit is not introducing
any bug makes sense.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-22-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:53 +0000 (14:59 +0200)]
mtd: rawnand: hisi504: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-21-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:52 +0000 (14:59 +0200)]
mtd: rawnand: gpmi: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Han Xu <han.xu@nxp.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-20-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:51 +0000 (14:59 +0200)]
mtd: rawnand: gpio: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-19-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:50 +0000 (14:59 +0200)]
mtd: rawnand: fsmc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-18-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:49 +0000 (14:59 +0200)]
mtd: rawnand: fsl_upm: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-17-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:48 +0000 (14:59 +0200)]
mtd: rawnand: fsl_ifc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-16-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:47 +0000 (14:59 +0200)]
mtd: rawnand: fsl_elbc: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-15-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:46 +0000 (14:59 +0200)]
mtd: rawnand: diskonchip: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-14-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:45 +0000 (14:59 +0200)]
mtd: rawnand: diskonchip: Fix the probe error path
Not sure nand_cleanup() is the right function to call here but in any
case it is not nand_release(). Indeed, even a comment says that
calling nand_release() is a bit of a hack as there is no MTD device to
unregister. So switch to nand_cleanup() for now and drop this
comment.
There is no Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if it did not intruce
any bug.
Fixes:
d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-13-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:44 +0000 (14:59 +0200)]
mtd: rawnand: denali: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-12-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:43 +0000 (14:59 +0200)]
mtd: rawnand: denali: Delete items from the list in the _remove() path
Denali driver keeps track of devices with a list. Delete items of this
list as long as they are not in use anymore.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-11-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:42 +0000 (14:59 +0200)]
mtd: rawnand: davinci: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-10-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:41 +0000 (14:59 +0200)]
mtd: rawnand: cs553x: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-9-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:39 +0000 (14:59 +0200)]
mtd: rawnand: cafe: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-7-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:38 +0000 (14:59 +0200)]
mtd: rawnand: cadence: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-6-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:37 +0000 (14:59 +0200)]
mtd: rawnand: brcmnand: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-5-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:36 +0000 (14:59 +0200)]
mtd: rawnand: bcm47xx: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-4-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:35 +0000 (14:59 +0200)]
mtd: rawnand: au1550nd: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-3-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 12:59:34 +0000 (14:59 +0200)]
mtd: rawnand: ams-delta: Stop using nand_release()
This helper is not very useful and very often people get confused:
they use nand_release() instead of nand_cleanup().
Let's stop using nand_release() by calling mtd_device_unregister() and
nand_cleanup() directly.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-2-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:49 +0000 (09:45 +0200)]
mtd: rawnand: arasan: Support the hardware BCH ECC engine
Add support for the hardware ECC BCH engine.
Please mind that this engine has an important limitation:
BCH implementation does not inform the user when an uncorrectable ECC
error occurs. To workaround this, we avoid using the hardware engine
in the read path and do the computation with the software BCH
implementation, which is faster than mixing hardware (for correction)
and software (for verification).
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-9-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:48 +0000 (09:45 +0200)]
mtd: rawnand: arasan: Add new Arasan NAND controller
Add the Arasan NAND controller driver. This brings only NAND
controller support. The ECC engine being a bit subtle, hardware ECC
support will be added in a second time.
This work is based on contributions from Naga Sureshkumar Relli.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-8-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:47 +0000 (09:45 +0200)]
dt-bindings: mtd: Document ARASAN NAND bindings
Document the Arasan NAND controller bindings.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-7-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:46 +0000 (09:45 +0200)]
MAINTAINERS: Add Arasan NAND controller and bindings
Fill a new entry for the Arasan NAND controller.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-6-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:45 +0000 (09:45 +0200)]
mtd: rawnand: Add nand_extract_bits()
There are cases where ECC bytes are not byte-aligned. Indeed, BCH
implies using a number of ECC bits, which are not always a multiple of
8. We then need a helper like nand_extract_bits() to extract these
syndromes from a buffer.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-5-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:44 +0000 (09:45 +0200)]
mtd: rawnand: Ensure the number of bitflips is consistent
The main NAND read page function can loop over "page reads" many times
in if the reading reports uncorrectable error(s) and if the chip
supports the read_retry feature.
In this case, the number of bitflips is summarized between
attempts. Fix this by re-initializing the entire mtd_ecc_stats object
each time we retry.
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-4-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:43 +0000 (09:45 +0200)]
lib/bch: Allow easy bit swapping
It seems that several hardware ECC engine use a swapped representation
of bytes compared to software. This might having to do with how the
ECC engine is wired to the NAND controller or the order the bits are
passed to the hardware BCH logic.
This means that when the software BCH engine is working in conjunction
with data generated with hardware, sometimes we might need to swap the
bits inside bytes, eg:
0x0A = b0000_1010 -> b0101_0000 = 0x50
Make it possible by adding a boolean to the BCH initialization routine.
Regarding the implementation itself, this is a rather simple approach
that can probably be enhanced in the future by preparing the
->a_{mod,pow}_tab tables with the swapping in mind.
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-3-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 07:45:42 +0000 (09:45 +0200)]
lib/bch: Rework a little bit the exported function names
There are four exported functions, all suffixed by _bch, which is
clearly not the norm. Let's rename them by prefixing them with bch_
instead.
This is a mechanical change:
init_bch -> bch_init
free_bch -> bch_free
encode_bch -> bch_encode
decode_bch -> bch_decode
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-2-miquel.raynal@bootlin.com
Miquel Raynal [Tue, 19 May 2020 13:08:34 +0000 (15:08 +0200)]
mtd: rawnand: micron: Adapt the PAGE READ flow to constraint controllers
There are controllers not able to just read data cycles on the
bus. There are controllers not able to do a change column.
If we want to support both, we need to check which operation is
supported first. This is the exact same mechanism that is in use for
parameter page reads (ONFI/JEDEC) as the same problem occurs.
Speed testing does not show any throughput penalty so we do not
optimize more than that. However it is likely that, in the future, a
more robust and exhaustive test will run at boot time to avoid
re-checking what is supported and what is not at every call.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200519130834.2918-1-miquel.raynal@bootlin.com
Boris Brezillon [Mon, 18 May 2020 16:33:00 +0000 (18:33 +0200)]
mtd: rawnand: Remove the cmx270 NAND controller driver
The CM-X270 board has been removed, we can remove the custom NAND
driver as well.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200518163300.304732-1-boris.brezillon@collabora.com
Boris Brezillon [Mon, 18 May 2020 15:52:37 +0000 (17:52 +0200)]
mtd: rawnand: Fix nand_gpio_waitrdy()
Mimic what's done in nand_soft_waitrdy() and add one to the jiffies
timeout so we don't end up waiting less than actually required.
Reported-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Fixes:
b0e137ad24b6c ("mtd: rawnand: Provide helper for polling GPIO R/B pin")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200518155237.297549-1-boris.brezillon@collabora.com
Boris Brezillon [Wed, 13 May 2020 17:22:48 +0000 (19:22 +0200)]
mtd: rawnand: davinci: Get rid of the legacy interface implementation
Now that exec_op() is implemented we can get rid of the legacy interface
implementation.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200513172248.141402-4-boris.brezillon@collabora.com
Boris Brezillon [Wed, 13 May 2020 17:22:47 +0000 (19:22 +0200)]
mtd: rawnand: davinci: Implement exec_op()
Implement exec_op() so we can later get rid of the legacy interface
implementation.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200513172248.141402-3-boris.brezillon@collabora.com
Boris Brezillon [Wed, 13 May 2020 17:22:46 +0000 (19:22 +0200)]
mtd: rawnand: davinci: Stop using nand_chip.legacy.IO_ADDR_{R, W}
We can use info->current_cs directly instead of doing this weird
IO_ADDR_{R,W} re-assignment dance.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200513172248.141402-2-boris.brezillon@collabora.com
Boris Brezillon [Wed, 13 May 2020 17:22:45 +0000 (19:22 +0200)]
mtd: rawnand: davinci: Inherit from nand_controller
Let's not rely on the dummy_controller embedded in nand_chip.legacy
and explicitly inherit from nand_controller instead.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200513172248.141402-1-boris.brezillon@collabora.com
Álvaro Fernández Rojas [Tue, 12 May 2020 08:24:51 +0000 (10:24 +0200)]
mtd: rawnand: brcmnand: correctly verify erased pages
The current code checks that the whole OOB area is erased.
This is a problem when JFFS2 cleanmarkers are added to the OOB, since it will
fail due to the usable OOB bytes not being 0xff.
Correct this by only checking that data and ECC bytes aren't 0xff.
Fixes:
02b88eea9f9c ("mtd: brcmnand: Add check for erased page bitflips")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200512082451.771212-1-noltari@gmail.com