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>

Adding display type HDMI in dss_features, overlay and the manager so that
HDMI type of display will be recognized.
Signed-off-by: NMythri P K <mythripk@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Introduce functions which request and release VC's. This will be used in panel
drivers in their probes.

omap_dsi_request_vc() takes in the pointer to the omap_dss_device, the VC_ID
parameter which goes into the header of the DSI packets, and returns a Virtual
channel number (or virtual channel register set) which it can use.

omap_dsi_set_vc_id() takes the omap_dss_device pointer, the Virtual Channel
number and the VC_ID that needs to be set for the specifed Virtual Channel.

omap_dsi_release_vc() takes the omap_dss_device pointer and the Virtual Channel
number that needs to be made free.

Initialisation of VC parameters is done in dsi_init().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

DSI PLL output clock names have been made more generic. The clock name
describes what the source of the clock and what clock is used for. Some of
DSI PLL parameters like dividers and DSI PLL source have also been made more
generic.

dsi1_pll_fclk and dsi2_pll_fclk have been changed as dsi_pll_hsdiv_dispc_clk
and dsi_pll_hsdiv_dsi_clk respectively. Also, the hsdividers are now named
regm_dispc and regm_dsi instead of regm3 and regm4.

Functions and macros named on the basis of these clock names have also been
made generic.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Provide a function in pdata to allow dss submodules to check if a given
clock is available on a platform as an optional clock.
Signed-off-by: NSenthilvadivu Guruswamy <svadivu@ti.com>
(based on implementation from Senthil)
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Looks up the hwmod database for each of the given DSS HW IP and builds
omap_device which inturn does the platform device register for each of DSS HW IP
Signed-off-by: NSenthilvadivu Guruswamy <svadivu@ti.com>
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

A new file display.c is introduced for display driver init, which adds a function
omap_display_init to do the DSS driver registration. This is the first step in moving
away registration of DSS from board files into a common place.
Reviewed-by: NKevin Hilman <khilman@ti.com>
Tested-by: NKevin Hilman <khilman@ti.com>
Signed-off-by: NSenthilvadivu Guruswamy <svadivu@ti.com>
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

A panel connects to one of the overlay managers of DSS through some interface block.
On OMAP4, specifying the type of the display is not sufficient to conclude which manager
the panel should be connected to.
Hence, a new member 'channel' is introduced in omap_dss_device structure to determine
which manager the panel uses. The dss_recheck_connections() called in dss_driver_probe()
uses this channel parameter to set the correct manager to the corresponding omap_dss_device.

The channel parameter is used only once to ensure the correct managers are set for each
panel. The parameter dssdev->manager->id will take care of ensuring that the panel and
then the interface driver configures the correct DISPC channel.

Also, add a new Overlay Manager in manager.c, make other changes needed for LCD2 channel.
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NMukund Mittal <mmittal@ti.com>
Signed-off-by: NSamreen <samreen@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

DISPC functions are modified in order to work when the manager is LCD2.
This includes:
Adding new IRQs specific to LCD2 and their handling.
Provide dumps of the new manager's registers.
Provide dumps of the new manager's clocks.
Checks for channel for registers DISPC_CONTROL2 and DISPC_CONFIG2
which can't be parametrized.
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NMukund Mittal <mmittal@ti.com>
Signed-off-by: NSamreen <samreen@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

On OMAP4, we have a new DISPC channel for Overlay Manager LCD2. There is a set
of regsiters for LCD2 channel similar to the existing LCD channel, like
DISPC_CONTROL2, DISPC_DIVISOR2, DISPC_CONFIG2 and so on.

Introduce new enum members for LCD2 Channel and corresponding Overlay Manager
in display.h.

Represent the following DISPC register defines with channel as a parameter
to differentiate between LCD and LCD2 registers (and also DIGIT in some cases):

DISPC_DEFAULT_COLOR, DISPC_TRANS_COLOR, DISPC_TIMING_H, DISPC_TIMING_V,
DISPC_POL_FREQ, DISPC_DIVISOR, DISPC_SIZE_LCD, DISPC_DATA_CYCLEk,
DISPC_CPR_COEF_R, DISPC_CPR_COEF_G and DISPC_CPR_COEF_B

This parametrization helps in reducing the number of register defines for DISPC.
Replace the existing reads/writes to these registers in this new way.
Also, Introduce defines for registers DISPC_CONTROL2 and DISPC_CONFIG2 which
are used exclusively for LCD2 channel.
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NMukund Mittal <mmittal@ti.com>
Signed-off-by: NSamreen <samreen@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Enable dss to process color formats with pre-mulitplied alpha.
With this we can have alpha values defined for each pixel
and hence can have different blending values for each pixel.
sysfs entry has been created for this and pre-multiplied alpha
support is turned off by default.
Signed-off-by: NSudeep Basavaraj <sudeep.basavaraj@ti.com>
Signed-off-by: NRajkumar N <rajkumar.nagarajan@ti.com>
Signed-off-by: NSamreen <samreen@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Calls init functions of dss_features during dss_probe, and the following
features are made omapxxxx independent:
  - number of managers, overlays
  - supported color modes for each overlay
  - supported displays for each manager
  - global aplha, and restriction of global alpha for video1 pipeline
  - The register field ranges : FIRHINC, FIRVINC, FIFOHIGHTHRESHOLD
    FIFOLOWTHRESHOLD and FIFOSIZE
Signed-off-by: NArchit Taneja <archit@ti.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>

Change dsi_vc_dcs_read_2() data parameter to two u8 parameters to make the
byte-order clear.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add dsi_vc_dcs_read_2() helper function to read two bytes from the DSI
peripheral.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move check/set/get_timings() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move set/get_wss() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move enable/disable/suspend/resume from omap_dss_device to
omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move update() and sync() from omap_dss_device to omap_dss_driver.

Also, update was hardcoded to use virtual channel 0. This patch adds a
parameter that specifies the VC.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move set/get_update_mode() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move enable/get_te() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move get_recommended_bpp() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move get_resolution() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move enable/disable_channel() from omap_dss_device to overlay manager.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move wait_vsync() from omap_dss_device to overlay manager.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move get/set_rotate() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move set/get_mirror() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move memory_read() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Move run_test() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

The system to allow panel drivers to exists as attached to ctrl drivers
did never work very well. It is not useed, and this patch removes it to
make the driver cleaner.

For now, controller drivers need to include also the panel driver code. In
the future a proper mechanism for this should be developed, perhaps by
creating busses for controllers.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Rename and export dsi_vc_enable_hs() so that the display drivers can
control the mode of the DSI link.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Add helper functions for most common DCS read and write operations.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

The core files of DSS2. DSS2 commits are split a bit artificially to
make the individual commits smaller, and DSS2 doesn't compile properly
without the rest of the core commits. This shouldn't be a problem, as no
configuration uses DSS2 yet.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>