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There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <[email protected]>
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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Additional input received from JMicron on MemoryStick host interfaces showed
that some assumtions in fifo handling code were incorrect. This patch also
fixes data corruption used to occure during PIO transfers.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Sony MemoryStick cards are used in many products manufactured by Sony.
They are available both as storage and as IO expansion cards. Currently,
only MemoryStick Pro storage cards are supported via TI FlashMedia
MemoryStick interface.
[[email protected]: biuld fix]
[[email protected]: build fix]
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Miguel Boton <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Signed-off-by: Tony Jones <[email protected]>
Cc: Alex Dubov <[email protected]>
Cc: Kay Sievers <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Socket power must be fully controlled by adapter driver. This also prevents
unnecessary power-off of the socket when media driver is unloaded, yet
media remains in the socket.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Cosmetic changes to the code.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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It was found that delays associated with issue and completion of the commands
severely limit performance of the new, fast SD cards. To alleviate this issue
scatter-gather emulation in software is implemented for both dma and pio
transfer modes. Non-block aligned and high memory sg entries are accounted
for.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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State machine used to to track mmc command state was found to be fragile
and unreliable, making many cards unusable. The safer solution is to perform
all needed checks at every card event.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Some details of the device management (create, add, remove) are really
belong to the tifm_core, as they are not hardware specific.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Some details of the adapter management (create, add, remove) are really
belong to the tifm_core, as they are not hardware specific.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Freezeable workqueue makes sure that adapter work items (device insertions
and removals) would be handled after the system is fully resumed. Previously
this was achieved by explicit freezing of the kthread.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Remove code duplicating the kernel functionality and clean up data
structures involved in driver matching.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Instead of passing transformed value of adapter interrupt status to
socket drivers, implement two separate callbacks - one for card events
and another for dma events.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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As there's only one work item (media_switcher) to handle and it's effectively
serialized with itself, I found it more convenient to use kthread instead of
workqueue. This also allows for a working implementation of suspend/resume,
which were totally broken in the past version.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Hardware does not say whether card was inserted or removed when reporting
socket events. Moreover, during suspend, media can be removed or switched
to some other card type without notification. Therefore, for each socket
in the change set the following is performed:
1. If there's active device in the socket it's unregistered
2. Media detection is performed
3. If detection recognizes supportable media, new device is registered
This patch also alters some macros and variable names to enhance clarity.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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In order to support correct suspend and resume several changes were needed:
1. Switch from work_struct to tasklet for command handling. When device
suspend is called workqueues are already frozen and can not be used.
2. Separate host initialization code from driver's probe and don't rely
on interrupts for host initialization. This, in turn, addresses two
problems:
a) Resume needs to re-initialize the host, but can not assume that
device interrupts were already re-armed.
b) Previously, probe will return successfully before really knowing
the state of the host, as host interrupts were not armed in time.
Now it uses polling to determine the real host state before returning.
3. Separate termination code from driver's remove. Termination may be caused
by resume, if media changed type or became unavailable during suspend.
Signed-off-by: Alex Dubov <[email protected]>
Signed-off-by: Pierre Ossman <[email protected]>
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Signed-off-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Driver for TI Flash Media card reader. At present, only MMC/SD cards are
supported.
[[email protected]: cleanups, build fixes]
Signed-off-by: Alex Dubov <[email protected]>
Cc: Daniel Qarras <[email protected]>
Acked-by: Pierre Ossman <[email protected]>
Cc: Russell King <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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