Remove functions dsi_vc_dcs_read_1() and dsi_vc_dcs_read_2(), these are used
when the panel is expected to return 1 and 2 bytes respecitvely. This was manily
used for debugging purposes. These functions should be implemented in the panel
driver if needed.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Intoduce enum "dss_dsi_content_type" to differentiate between DCS and generic
content types.

Introduce short and long packet write functions which use generic
Processor-to-Peripheral transaction types. These are needed by some devices
which may not support corresponding DCS commands. Create common write functions
which allow code reuse between DCS and generic write functions.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Create an enum for DSI operation modes, use this to set the capabilities of the
device in dsi_init_display().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The enum type dsi_vc_mode is a bit misleading as L4 slave port and video port
are sources to VC rather than the mode of operation. Rename then enum type and
its members. Merge dsi_vc_config_vp() and dsi_vc_config_l4() into a single
function called dsi_vc_config_source() which takes dsi_vc_source enum as an
extra argument.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

MIPI DSI Transaction types and DCS commands are currently defined as
macros in dsi.c and panel-taal.c, remove these and replace them with
enum members defined in include/video/mipi_display.h.
Signed-off-by: NArchit Taneja <archit@ti.com>
[tomi.valkeinen@ti.com: reformatted the commit message]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Change lcd driver from generic to AT070TN83.
Signed-off-by: NThomas Weber <weber@corscience.de>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add support for Innolux AT070TN83, a 7 inch LCD
with RGB-Interface and touch panel to panel-generic-dpi.

Tested with Devkit8000.
Signed-off-by: NThomas Weber <weber@corscience.de>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Group dispc's overlay and manager related functions.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Rename dispc's manager related functions as follows:

- Remove prepending underscores, which were originally used to inform
  that the clocks needs to be enabled. This meaning is no longer valid.
- Prepend the functions with dispc_mgr_*
- Remove "channel" from the name, e.g. dispc_enable_channel ->
  dispc_mgr_enable

The idea is to group manager related functions so that it can be deduced
from the function name that it writes to manager spesific registers.

All dispc_mgr_* functions have enum omap_channel as the first parameter.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Rename dispc's overlay related functions as follows:

- Remove prepending underscores, which were originally used to inform
  that the clocks needs to be enabled. This meaning is no longer valid.
- Prepend the functions with dispc_ovl_*
- Remove "plane" from the name, e.g. dispc_set_plane_ba0 ->
  dispc_ovl_set_ba0

The idea is to group overlay related functions so that it can be deduced
from the function name that it writes to overlay spesific registers.

All dispc_ovl_* functions have enum omap_plane as the first parameter.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The functions do not exist, so remove the prototypes.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Use strtobool instead of kstrtoint when parsing bool from sysfs.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Use strtobool and kstrto* functions when parsing sysfs inputs.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add OMAP_DSS_OVL_CAP_GLOBAL_ALPHA and OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA to
overlay capabilities. Use these instead of FEAT_GLOBAL_ALPHA,
FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA in code.

Remove FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA which are no
longer used. FEAT_GLOBAL_ALPHA is still used to decide if the HW has
global alpha register.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NArchit Taneja <archit@ti.com>

Add support to define overlay capabilities into dss_features. The
features are set to overlay->caps at initialization time.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NArchit Taneja <archit@ti.com>

Use lookup tables instead of switch/if in some DISPC functions to make
the code cleaner.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NArchit Taneja <archit@ti.com>

Remove support for non-DISPC overlays and overlay managers.

The support to possibly have non-DISPC overlays and managers was made to
make it possible to use CPU and/or sDMA to update RFBI or DSI command
mode displays. It is ok to remove the support, because:

- No one has used the feature.
- Display update without DISPC is very slow, so it is debatable if the
  update would even be usable.
- Removal cleans up code.
- If such a feature is needed later, it is better implemented outside
  omapdss driver.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NArchit Taneja <archit@ti.com>

DSS driver has not been "experimental" for many years now, so perhaps
it's time to remove the text from Kconfig titles.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Currently when changing the manager of an overlay, set_manager() directly
calls dispc to set the overlay's destination.

Change this to be more in line with other overlay configurations, and
this will also remove the need to have dispc clocks enabled when calling
set_manager().

A new field is added to overlay struct, "manager_changed". This is
similar to "display_changed" field in manager struct, and is used to
inform apply that the manager has changed and thus write to the
registers is needed.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

DPI and DSI were not cleaning up the clock source in error or uninit
cases. Set the clock source back to PRCM.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Currently omapfb wants that all the display devices have a driver,
otherwise omapfb refuses to start. There's no real requirement to act
like that, and this patch will make omapfb give a warning and skip that
device.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Implement dsi_mux_pads for OMAP4. On enable the function enables the DSI
pins and disables pull down. On disable the function disables the pins
and enables pull down.

It is unclear from the TRM whether the pull down is active if the pins
are disabled, so this implementation may leave the pins floating when
the DSI device is disabled.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

dsi_mux_pads() needs to know about the DSI HW module and the DSI lanes
used. Split the function into two, enable and disable, which take
necessary arguments, and add empty implementations for both.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

OMAP DSS normally gets power from VCXIO on OMAP4. Add configuration for
this into twl-common.c

Mark VCXIO as always_on, as VCXIO is used by multiple components,
including the MPU, and turning it off when DSS doesn't need it would
lead the device to halt.
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Currently, there are 2 differently named platform devices generated for
the 2 DSS DSI modules. In order to use the same driver, the dsi devices
should be 2 instances of the same platform device.

Change the platform device names from "omapdss_dsi1" and "omapdss_dsi2"
to omapdss_dsi", and set the device indices to 0 and 1.
Signed-off-by: NArchit Taneja <archit@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Now that the HWMOD fmwk handles the fcks of DSS modules properly, the
DSS driver no longer needs to explicitely enable/disable the fck.

This patch removes the enables/disables of fck from dispc, dsi and dss.
The clk_get(fck) is still needed there, as the modules need to know the
frequency of the clock.

For hdmi and venc this patch also removes the clk_get(fck), as they
don't need the clock at all.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

This reverts commit df5d3ed2.

The HDMI clock name has been fixed in HWMOD data.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

This reverts commit 9ede365a.

The hack is no longer needed, as the HWMOD data has been fixed.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The array size of fifo_size array in the global dispc struct is currently
hardcoded to 3. Replace this with the MAX_DSS_OVERLAYS macro in dss_features.h,
use dss_features function to get the number of overlays instead of the
ARRAY_SIZE macro in dispc_read_plane_fifo_sizes().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Iterate over overlay id's to shorten _dispc_set_color_conv_coef()
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Iterate over manager and overlay id's to shorten dispc_save_context() and
dispc_restore_context().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Iterate over manager and overlay id's to shorten dispc_dump_regs().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Prepare dispc_dump_regs() to iterate over manager and overlay id's. Doing this
requires modifications of the macro "DUMPREG" which currently needs us to specify
the manager/overlay name to get the correct result. For example, in order to
print the register DISPC_TIMING_H(OMAP_DSS_CHANNEL_LCD), we can't iterate over
a varaible i and get the desired result through DUMPREG(DISPC_TIMING_H(i)).

Split the registers into 3 sections, the first with no arguments(common
registers), the second with one argument(manager/overlay id), and the third with
two arguments(overlay id and coefficient index), redefine DUMPREG macros for
each of these.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Make the debug message useful by printing the name of the device
that no associated driver could be found for.
Signed-off-by: NAndy Doan <andy.doan@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

There's no guarantee that the error handler worker thread
will run while the dispc clocks are on. Explicitly enable/disable
them.
Signed-off-by: NDima Zavin <dima@android.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

If a manager is moved while attached to an enabled display, the DSS
system will be left in an inconsistent state. This will eventually cause
a kernel oops when the enabled display is disabled.

Fix this by not allowing the user to move a manager away from an enabled
display.
Signed-off-by: NDaniel Morsing <daniel.morsing@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

None of the DSS interface drivers check if an overlay manager is
connected to the display when the display is being enabled. This leads
to null pointer crash if the display has no manager.

This patch checks for the manager and returns an error if it is null.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Fix two problems in PicoDLP driver's error handling on
picodlp_panel_power_on:

- If omapdss_dpi_display_enable() failed, the its error value was not
  returned
- If picodlp_i2c_init() failed, dssdev->state was erroneously set to
  OMAP_DSS_DISPLAY_ACTIVE
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

PicoDLP is a micro projector from TI.

DLP used in OMAP4 is dpp2600 (DLP Pico Projector) The DLP requires
commands to be sent over i2c for configurations. To know more about
dpp2600 commands please visit:
https://focus.ti.com/myti/docs/extranet.tsp?sectionId=403

The picodlp module consists of a dss driver and an i2c_client.

To know more please visit:
http://www.omappedia.org/wiki/PicoDLP_projector_guide

Based on original design from Mythri P K <mythripk@ti.com>
Signed-off-by: NMayuresh Janorkar <mayur@ti.com>
Signed-off-by: NMythri P K <mythripk@ti.com>
[tomi.valkeinen@ti.com: squashed commits]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>