We can use __exit for the driver remove function in plain dss panels
(ie. those that do not need i2c or spi).
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

All DPI panels were missing dependency to OMAP2_DSS_DPI. Add the
dependency.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

arch/arm/plat-omap/include/plat/nokia-dsi-panel.h is an include for the
OMAP DSS panel driver for Nokia's DSI displays. A more logical place for
it is in include/video.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

arch/arm/plat-omap/include/plat/panel-generic-dpi.h is an include for
the OMAP DSS panel driver for generic DPI displays. A more logical place
for it is in include/video.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

arch/arm/plat-omap/include/plat/display.h is an include for the OMAP DSS
driver. A more logical place for it is in include/video.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

There may be multiple ways of controlling the backlight on a given
machine.  Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch adds support for the Gumstix Palo35 expansion board
which utilizes the 320 x 240 pixel LG.Philips LB035Q02 LCD Panel
Signed-off-by: NSteve Sakoman <steve@sakoman.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Taal driver used to take a hard coded Macro for Virtual Channel and the VC_ID.
The Taal panel driver now requests for a Virtual channel through the
omap_dsi_request_vc() call in taal_probe().

The channel number returned by the request_vc() call is used for sending command
and data to the Panel. The DSI driver automatically configures the Virtual
Channel's source to either Video Port or L4 Slave port based on what the panel
driver is using it for.

The driver uses omap_dsi_release_vc() to free the VC specified by the panel.
taal_remove() or when a request_vc() call fails.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add support for Samsung LTE430WQ-F0C to panel-generic-dpi.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Signed-off-by: NBryan Wu <bryan.wu@canonical.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Still keep sharp_ls_panel driver, because it contains blacklight control driver.
Signed-off-by: NBryan Wu <bryan.wu@canonical.com>
Acked-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Generic DPI panel driver includes the driver and 4 similar panel configurations. It
will match the panel name which is passed from platform data and setup the
right configurations.

With generic DPI panel driver, we can remove those 4 duplicated panel display
drivers. In the future, it is simple for us just add new panel configuration
date in panel-generic-dpi.c to support new display panel.
Signed-off-by: NBryan Wu <bryan.wu@canonical.com>
Acked-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

NEC WVGA LCD NL8048HL11-01B panel support has been added.
This panel is being used in zoom2/zoom3/3630 sdp boards.
Signed-off-by: NMukund Mittal <mmittal@ti.com>
Signed-off-by: NRajkumar N <rajkumar.nagarajan@ti.com>
Signed-off-by: NSamreen <samreen@ti.com>
CC: Subbu Venkatesh <subramani.venkatesh@windriver.com>
CC: Erik Gilling <konkers@android.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

backlight_device_register has been expecting a const "ops" argument, and using
it as such, since 9905a43b. Let's make the
remaining backlight_ops instances const.

Inspired by hunks of the grsecurity patch, updated for newer kernels.
Signed-off-by: NLionel Debroux <lionel_debroux@yahoo.fr>
Acked-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

If we blank the panel by
echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank

Then, we reboot the sytem, the kernel will crash at
drivers/video/omap2/dss/core.c:323

This is because the panel is closed twice. Now check the state of a dssdev
to forbid a panel is power on or power off twice.
Signed-off-by: NStanley.Miao <stanley.miao@windriver.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

This panel driver is using SPI for its communication so add CONFIG_SPI
dependency.
Signed-off-by: NJarkko Nikula <jhnikula@gmail.com>
Cc: Roger Quadros <roger.quadros@nokia.com>
Cc: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

TDO35S samples the data on the falling adge of the pixel clock,
therefore the data strobe should be on the raising edge.
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Skip any further processing of taal_enable_te(), taal_rotate(), and
taal_mirror() if value remains unchanged.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Currently the update area on manual update displays is automatically
enlargened to fully cover scaled overlays. This patch makes that
optional, allowing the panel driver to choose if it's used or not.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Prepare for supporting panels other than Taal in this driver.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add support for configuring regulators in the panel specific
configuration data.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

The driver will support other panels in addition to Taal, print also the
name.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add a structure for panel specific configration to be able to support
more than one panel in the future.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Make ESD check usage configurable in DSI panel data, as opposed to a
define.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Get board specific information from the Nokia DSI panel data structure
instead of the DSS.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add gpio irq based external TE support with timeout.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Switch from numbered to named labels to make it easier to add new
labels for error handling.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move ESD work queuing and cancelling out of taal_power_on/off() to avoid
problems related to taal_esd_work() calling the power on/off functions.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Change state only if power on was succesful.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move dsi_bus_lock/unlock() out of taal_power_on/off() to avoid deadlock
in taal_esd_work().
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Bail out from taal_enable_te() and taal_run_test() if panel is not
enabled.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Check return values and bail out on errors.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

ESD work is never queued in probe, no need to cancel it on probe error.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Separate gpio_request() and request_irq() error handling.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

After the addition of proper hardware reset, taal_hw_reset(), there's no
need for an additional platform enable/disable. Remove them.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Avoid potential race conditions in sysfs access to taal data.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Issue a proper reset pulse on the reset line instead of just doing power
on/off.
Signed-off-by: NJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

taal_bl_update_status was missing locks to protect taal_data. This caused
a kernel crash randomly, as the code attempted to set the brightness while
the OMAP's DSI block was actually disabled.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add a mutex_unlock missing on the error paths.  The use of the mutex is
balanced elsewhere in the file.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E1;
@@

* mutex_lock(E1,...);
  <+... when != E1
  if (...) {
    ... when != E1
*   return ...;
  }
  ...+>
* mutex_unlock(E1,...);
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Acked-by: NMike Isely <isely@pobox.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This is the panel used on Nokia N900
Signed-off-by: NRoger Quadros <roger.quadros@nokia.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>