linux.git/drivers/mtd/maps/physmap.c, branch v2.6.29-rc2

[MTD] LPDDR extended physmap driver to support LPDDR flash

2009-01-05T12:57:28+00:00

Physmap is a generic map driver for different platforms and flash types.
We added support of LPDDR to physmap.
All changes here are related to introduction of new pfow_base parameter.
This parameter is valid in case of LPDDR chips only.

Signed-off-by: Alexey Korolev 
Acked-by: Jared Hulbert 
Signed-off-by: David Woodhouse

[MTD] struct device - replace bus_id with dev_name(), dev_set_name()

2008-12-23T10:00:14+00:00

Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: David Woodhouse

[MTD] physmap: fix leak of memory returned by parse_mtd_partitions

2008-12-10T16:10:27+00:00

The mtd partition parser returns an allocated pointer array of
mtd_partition.  The caller must free it.  The array is used only for
add_mtd_partitions(), so free it just after the call.

Signed-off-by: Atsushi Nemoto 
Cc: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse

[MTD] physmap: make physmap compat explicit

2008-12-10T16:10:05+00:00

The current method for always showing physmap compat address, size, and
width is a bit confusing.  If length is set to 0, then the address and
width are still shown but silently unused.  The physmap code itself
already has logic which sets compat based on length, so just pull that out
and into the Kconfig to make everything clear.

Signed-off-by: Mike Frysinger 
Cc: Bryan Wu 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse

[MTD] physmap: fix memory leak on physmap_flash_remove by using devres

2008-11-26T10:26:29+00:00

physmap_flash_remove releases only last memory region.  This causes
memory leak if multiple resources were provided.

This patch fixes this leakage by using devm_ functions.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse

[MTD] physmap: resume already suspended chips on failure to suspend

2008-07-25T13:53:26+00:00

A nice side effect of this patch is that the return value of
physmap_flash_suspend in the error path is the value of the first failing
suspend callback and not the bitwise OR of all of them.

Signed-off-by: Uwe Kleine-König 
Signed-off-by: David Woodhouse

[MTD] physmap: Fix suspend/resume/shutdown bugs.

2008-07-25T13:53:03+00:00

Don't call suspend/resume functions if they have not been
defined.

Signed-off-by: Robert Jarzmik 
Acked-By: Jörn Engel 
Signed-off-by: Uwe Kleine-König 
Signed-off-by: David Woodhouse

MTD/JFFS2: remove CVS keywords

2008-06-04T16:50:17+00:00

Once upon a time, the MTD repository was using CVS.

This patch therefore removes all usages of the no longer updated CVS
keywords from the MTD code.

This also includes code that printed them to the user.

Signed-off-by: Adrian Bunk 
Signed-off-by: David Woodhouse

[MTD] [MAPS] fix platform driver hotplug/coldplug

2008-04-22T13:14:26+00:00

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable MTD mapping
platform drivers, to re-enable auto loading.

NOTE oddness with physmap ...  it's a legacy driver in some configs, which
means it can't always support hotplugging.  (Not that most of these mapping
drivers would often be used as modules...)

[dbrownell@users.sourceforge.net: bugfix, more drivers, registration fixes]
Signed-off-by: Kay Sievers 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: David Woodhouse

mtd: maps/physmap: fix oops in suspend/resume/shutdown ops

2008-03-28T21:45:22+00:00

# reboot
...
[   42.351266] Flash device refused suspend due to active operation (state 0)
[   42.358195] Unable to handle kernel NULL pointer dereference at virtual address 00000078
[   42.360060] pgd = c7d9c000
[   42.362769] [00000078] *pgd=a7d8d031, *pte=00000000, *ppte=00000000
[   42.372902] Internal error: Oops: 17 [#1]
[   42.376911] Modules linked in:
[   42.379980] CPU: 0    Not tainted  (2.6.25-rc2-10642-ge8f2594-dirty #73)
[   42.380000] PC is at physmap_flash_shutdown+0x28/0x54
...
[   42.380000] Backtrace:
[   42.380000] [] (physmap_flash_shutdown+0x0/0x54) from [] (platform_drv_shutdown+0x20/0x24)
[   42.380000]  r5:28121969 r4:c0229e08
[   42.380000] [] (platform_drv_shutdown+0x0/0x24) from [] (device_shutdown+0x60/0x88)
[   42.380000] [] (device_shutdown+0x0/0x88) from [] (kernel_restart_prepare+0x2c/0x3c)
[   42.380000]  r4:00000000
[   42.380000] [] (kernel_restart_prepare+0x0/0x3c) from [] (kernel_restart+0x14/0x48)
[   42.380000] [] (kernel_restart+0x0/0x48) from [] (sys_reboot+0xe8/0x1f8)
[   42.380000]  r4:01234567
[   42.380000] [] (sys_reboot+0x0/0x1f8) from [] (ret_fast_syscall+0x0/0x2c)
[   42.380000]  r7:00000058 r6:00000004 r5:00000001 r4:00000000
[   42.380000] Code: 0a000009 e7953004 e1a00003 e1a0e00f (e593f078)
[   42.650051] ---[ end trace 6d6c26a0fc3141de ]---
Segmentation fault
INIT: no more processes left in this runlevel

While looping for mtd[i]s, we should stop at the mtd[i] == NULL.

This patch also removes unnecessary "if (info)" checks:
suspend/resume/shutdown ops are executed only if probe() is succeeded, so info
is guaranteed to be !NULL.

Signed-off-by: Anton Vorontsov 
Cc: David Brownell 
Cc: David Woodhouse 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds