In the current mailbox driver, the mailbox internal pointer for
callback can be directly manipulated by the Users, so a second
User can easily corrupt the first user's callback pointer.
The initial effort to correct this issue can be referred here:
https://patchwork.kernel.org/patch/107520/

Along with fixing the above stated issue, this patch  adds the
flexibility option to register notifications from
multiple readers to the events received on a mailbox instance.
The discussion regarding this can be referred here.
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg30671.htmlSigned-off-by: NHari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: NFernando Guzman Lugo <x0095840@ti.com>
Acked-by: NHiroshi Doyu <hiroshi.doyu@nokia.com>

The variable rq_full flag is a global variable, so if there are multiple
mailbox users there will be conflicts. Now there is a full flag per
mailbox queue.
Reported-by: NOhad Ben-Cohen <ohad@wizery.com>
Signed-off-by: NFernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com>
Acked-by: NHiroshi Doyu <hiroshi.doyu@nokia.com>

Remove kernel.h and module.h since they are not used correctly anyway.

Also, remove device.h since it comes along with platform_device.h
(always will I guess).
Signed-off-by: NFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

No need to dynamically register mailboxes one by one.
Signed-off-by: NFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

Nobody is using them.
Signed-off-by: NFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

The underlying buffering implementation of mailbox
is converted from block API to kfifo due to the simplicity
and speed of kfifo.

The default size of the kfifo buffer is set to 256 bytes.
This value is configurable at compile time (via
CONFIG_OMAP_MBOX_KFIFO_SIZE), and can be changed at
runtime (via the mbox_kfifo_size module parameter).
Signed-off-by: NOhad Ben-Cohen <ohad@wizery.com>
Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

This patch uses a tasklet implementation for
sending mailbox messages.
Signed-off-by: NC A Subramaniam <subramaniam.ca@ti.com>
Signed-off-by: NRamesh Gupta G <grgupta@ti.com>
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Expose omap_mbox_enable()/disable_irq()
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

Also removed from tx_data
Signed-off-by: NC A Subramaniam <subramaniam.ca@ti.com>
Acked-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

It's not used at present.
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Move the remaining headers under plat-omap/include/mach
to plat-omap/include/plat. Also search and replace the
files using these headers to include using the right path.

This was done with:

#!/bin/bash
mach_dir_old="arch/arm/plat-omap/include/mach"
plat_dir_new="arch/arm/plat-omap/include/plat"
headers=$(cd $mach_dir_old && ls *.h)
omap_dirs="arch/arm/*omap*/ \
drivers/video/omap \
sound/soc/omap"
other_files="drivers/leds/leds-ams-delta.c \
drivers/mfd/menelaus.c \
drivers/mfd/twl4030-core.c \
drivers/mtd/nand/ams-delta.c"

for header in $headers; do
	old="#include <mach\/$header"
	new="#include <plat\/$header"
	for dir in $omap_dirs; do
		find $dir -type f -name \*.[chS] | \
			xargs sed -i "s/$old/$new/"
	done
	find drivers/ -type f -name \*omap*.[chS] | \
		xargs sed -i "s/$old/$new/"
	for file in $other_files; do
		sed -i "s/$old/$new/" $file
	done
done

for header in $(ls $mach_dir_old/*.h); do
	git mv $header $plat_dir_new/
done
Signed-off-by: NTony Lindgren <tony@atomide.com>

To preserve the registers during off-mode
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

Since "mbox->dev" doesn't exist and isn't created either at
registration, this patch will create "struct device", which belongs to
"omap-mailbox" class and set this pointer for the member of
"struct omap_mbox".
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Some of the code has been gradually transitioned to using the proper
struct request_queue, but there's lots left. So do a full sweet of
the kernel and get rid of this typedef and replace its uses with
the proper type.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

This patch adds a generic mailbox interface for for DSP and IVA
(Image Video Accelerator). This patch itself doesn't contain
any IVA driver.
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NJuha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>