Dynamic Memory Manager (DMM) is a hardware block in the OMAP4+
processor that contains at least one TILER instance.  TILER, or
Tiling and Isometric Lightweight Engine for Rotation, provides
IOMMU capabilities through the use of a physical address translation
table.  The TILER also provides zero cost rotation and mirroring.

The TILER provides both 1D and 2D access by providing different views
or address ranges that can be used to access the physical memory that
has been mapped in through the PAT.  Access to the 1D view results in
linear access to the underlying memory.  Access to the 2D views result
in tiled access to the underlying memory resulted in increased
efficiency.

The TILER address space is managed by a tiler container manager (TCM)
and allocates the address space through the use of the Simple Tiler
Allocation algorithm (SiTA).  The purpose of the algorithm is to keep
fragmentation of the address space as low as possible.
Signed-off-by: NAndy Gross <andy.gross@ti.com>
Signed-off-by: NRob Clark <rob@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

In commit 834d0ee3 (uintxy_t removal) not all changes were trival text replacements, some converted u64 -> dma_addr_t.
In some configurations dma_addr_t is a u32, meaning that some bit operations cause build warnings. From Randy Dunlap:

----------------
on i386 (X86_32) builds:

drivers/staging/et131x/et131x.c:2483:8: warning: right shift count >= width of type
drivers/staging/et131x/et131x.c:2531:8: warning: right shift count >= width of type
----------------

Removed these by reverting dma_addr_t back to u64 types, as well as
reverting some other non-trivial changes from the aforementioned commit.
Reported-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NMark Einon <mark.einon@gmail.com>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

As Dan mentioned, dcon_write() will only write u16 values. The
appropriate parts have been changed. As a result of module_param()
not accepting u16 as a valid data type, ushort is used.
Signed-off-by: NValentin Rothberg <valentinrothberg@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

As noted by the checkpatch script, strict_strtoul is obsolete. Unsigned
longs are used, so it seems good to take kstrtoul.
Signed-off-by: NValentin Rothberg <valentinrothberg@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The following changes were made in the document:

1. Update URLs to working links
2. remove old information about module parameters
3. Add IOCTL information.
4. cleanups and fix spelling
5. driver changed from character device to misc character device
Signed-off-by: NOren Weil <oren.jer.weil@intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The irq handler processes queued mei clients connect requests, which were
not transferred to the device in ioctl context due to unavailability
of the write buffer.

The handler may transfer the connection request only if there is
no other ongoing  requests for the same mei id.
This condition was implemented inversely which depending on
the write buffer availability lead to seemingly random
failures during connection attempts.

Cc: Oren Weil <oren.jer.weil@intel.com>
Signed-off-by: NNatalia Ovsyanikov <natalia.ovsyanikov@intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

list_for_each_entry_safe(pos, next, &head, list)
	if (pos) {
		....
	}

This check isn't needed.  The list cursor in a list_for_each()
loop is always a valid pointer

Cc: Oren Weil <oren.jer.weil@intel.com>
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Change ->read_status() by separating the error handling and the
status bits.  This also fixes a signedness bug in dcon_interrupt()
that would break the error handling.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Acked-by: NAndres Salomon <dilinger@queued.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The allocation of zram->compress_buffer is misssing a GFP_* specifier.
This is equivalent to GFP_NOWAIT but it is more likely a omission.
Since the allocation just above it uses GFP_KERNEL, there is no reason
to use GFP_NOWAIT here. Therefore, add GFP_KERNEL.
Signed-off-by: NJerome Marchand <jmarchan@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

As reported by checkpatch.pl strict_strtoX is obsolet and should be
replaced by kstrtoX.
Signed-off-by: NSergey Datsevich <srgdts@gmail.com>
Signed-off-by: NBjoern Meier <bjoernmeier@hotmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Set the length field of the scatter gather elements correctly when we create
the bounce buffer. When we use the bounce buffer for a "write" operation,
the act of copying to the bounce buffer, correctly deals with this issue.
However, on the "read" side, the current code was not correctly setting
the buffer length. Fix this bug. Note that when we copy from the bounce
buffer (for the read case), the amount we copy is controlled by the original
scatter gather list given to the driver.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Reported-by: NDadok Milan <dadok@kvados.cz>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

In this clean up patch, I altered functions: copy_to/
from_user() to return -EFAULT when an error occurs.
I also replaced break statements when an error occurs
from copy_to/from_user() with direct returns of -EFAULT.
Signed-off-by: NKevin McKinney <klmckinney1@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Staging: bcm: Alter code to move error handling closer to the calls; and remove white space, IOCTL_BCM_NVM_WRITE.

This is a clean up patch for IOCTL_BCM_NVM_WRITE
that replaces the assignment of the Status
variable with direct returns of the error code,
replaces the break statements with direct returns,
and removes a white space.
Signed-off-by: NKevin McKinney <klmckinney1@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch fixes a memory error in ioctl,
IOCTL_BCM_NVM_WRITE. While copying data to
user space, if an error occurs, pReadData
is freed. Then, at the end of the ioctl,
pReadData was being freed again.
Signed-off-by: NKevin McKinney <klmckinney1@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch refactors the device information code and adds preliminary support for the POD HD 500 device.
Signed-off-by: NMarkus Grabner <grabner@icg.tugraz.at>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch removes experimental code which is no longer used.
Signed-off-by: NMarkus Grabner <grabner@icg.tugraz.at>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The obsolete function strict_strtoul should be replaced by the kstrto*
functions.

In this context kstrtou16 should be use, as midi_mask_receive is only
used as unsigned short. All corresponding datatypes were adapted
accordingly.
Signed-off-by: NAndor Daam <andor.daam@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The function strict_strtoul is obsolete and should be replaced by the
new kstrto* functions.

The variable midi_mask_transmit is only used as unsigned short and the
datatypes of all affected variables were adjusted accordingly.
Signed-off-by: NAndor Daam <andor.daam@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We should release the udev->sem lock before returning.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

If we had an invalid trignum (anything other than zero is invalid) then
we returned without unlocking.  I've modified this function to just have
one return point.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Enable forcecrt2type as a module parameter.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Make "forcecrt2type" to apply also for XG21. The patch enables user to
switch LVDS LCD ON/OFF without the need to update the video BIOS.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Delete a redundant option.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Delete XGI21_LCDCapList. This data is display specific and does not
belong to the driver. It should be provided by the video BIOS.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Move the LVDS data into a device-specific data, and eliminate the global
variable usage.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

XG27 has the second display output already hardcoded to disabled. Just
in case, ensure that it has the LVDS code paths disabled. This will
simplify the future cleanups.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Delete XGIfb_GetXG21LVDSData() and code which duplicates
xgifb_read_vbios().
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Rename the function to xgifb_read_vbios().
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Only a single LVDS table entry is needed by the driver.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Check the BIOS size to avoid out of bounds array access. Disable LVDS
in case errors are detected.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Use u8 for video BIOS data.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Delete a redundant struct member.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Delete a redundant struct member.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We need the video BIOS only on XG21 and only during the init, so let's
do everything at the same place.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Remove video BIOS access from the routine, use the flag instead which
is initialized according to the BIOS data.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>