Add the support for NV12 color format.
Configure base address for UV component of NV12 color format.
Change the way chroma scaling is handled for YUV formats on OMAP4 by enabling
chroma-resampling for video pipeline and hence using FIR2 register set for
scaling UV.
Changes to _dispc_set_scaling(), because of the reason above, are:
- call _dispc_set_scaling_common() to handle scaling for all color formats
except for OMAP4 where it only handles scaling for RGB or Y-component
- call _dispc_set_scaling_uv() for special handling required for UV
component on OMAP4.
- dispc_set_scaling_uv() also resets chroma-resampling bit for RGB color modes.
Contains chroma scaling (_dispc_set_scaling_uv) design and implemented by
Lajos Molnar <molnar@ti.com>
Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add new registers specific to UV color component that are introduced in OMAP4.
Add simple helper functions to configure the newly added registers.
These new registers are mainly:
- UV base address registers used specifically for NV12 color-format
- FIR registers used for UV-color-component scaling on OMAP4
- Accumulator registers used for UV-color-component scaling
Add these new registers to save/restore and DUMPREG functions.
Also add two new features for OMAP4:
- FEAT_HANDLE_UV_SEPARATE - this is used on OMAP4 as UV color-component requires
separate handling.
- FEAT_ATTR2 - this is used on OMAP4 to configure new ATTRIBUTES2 register.
Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use for loop instead of individual entries for OVL_FIR_COEF_H, OVL_FIR_COEF_HV,
OVL_FIR_COEF_V and OVL_CONV_COEF in SR() and RR().
Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
FIR values can never be zero as per TRM, and the current code writes zero
when scaling is not used. It was not causing any problem as scaling was
disabled when zero was written. Its still safer to not write zero to
it in any case.
Now we configure correct FIR values even when scaling is not used (i.e. set FIR
to 1024 when scaling is not used), but the scaling enable bits are still kept
off if the scaling is not needed.
Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add new color formats supported by OMAP4: NV12, RGBA16, RGBX16,
ARGB16_1555, XRGB16_1555.
NV12 color format is defined here, its support in DSS will be added separately.
Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Implement an ASoC Codec Driver to handle audio configuration. The
implementation offers an interface for audio configuration and
control to be exposed to ALSA while hidding the HDMI details.
The ASoC driver supports the Basic Audio configuration as described
in CEA-861-D: 2-channel linear PCM with 32, 44.1 and 48kHz sample
rates and 16 bits/sample. It additionally supports 24 bit/sample
in 32-bit words.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add functionality for relevant audio configuration. Functions to
configure the audio FIFO and DMA as well as functions for the audio
core and Audio Info frame are included. This functionality is to
be used by the ASoC HDMI audio codec.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add enurations and structures for audio configuration. This includes
enumerations for the Audio InfoFrame, I2S, audio FIFO and audio core.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
CTS and N parameters are used to regenerate the audio clock from
the TMDS clock at the HDMI sink. In OMAP4430 ES1.0 version
the calculation of the CTS parameter is done by the HDMI IP
(hardware mode) while in others it must be done by the HDMI driver
(software mode). A DSS feature is used to indicate the HDMI
driver which mode is used.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Create a separate DSS features structure for OMAP4430 ES1.0. This
structure is used to expose features only present in such
silicon version. Specifically, this is required to handle how
the HDMI IP calculates the CTS parameter for audio clock
regeneration packets. OMAP4430 ES1.0 is the only one that supports
computation of the CTS parameter by the HDMI IP (hardware mode).
The rest of the revisions require the HDMI driver to perform the
computation.
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The line buffer sizes vary across DSI modules, create a function
dsi_get_line_buf_size() using DSI_GNQ register to get the size of
line buffer used for the DISPC video port data.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
On OMAP3, the DSI module has 2 data lanes. On OMAP4, DSI1 has 4 data lanes
and DSI2 has 2 data lanes. Introduce function dsi_get_num_data_lanes() which
returns the number of data lanes on the dsi interface, introduce function
dsi_get_num_data_lanes_dssdev() which returns the number of data lanes used by
the omap_dss_device connected to the lanes.
Use the DSI_GNQ register on OMAP4 to get the number of data lanes, modify
dsi.c to use the number of lanes and the extra data lanes on DSI1.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
In the previous DSI driver design, a private workqueue was needed to prevent a
deadlock as explained in the commit : 0f16aa0ae6
. In the current design, the workqueue is only used for queueing delayed work in
the case where we don't get a FRAMEDONE interrupt for 250 milliseconds. It is
safe to remove the private workqueue amd use the system workqueue instead to
schedule the delayed work with the new design where the deadlock can't occur.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
dsi_dump_clocks() prints lck and pck rates for the DISPC channel which it is
connected to. Remove this since it is already printed by dispc_dump_clocks()
in debugfs.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omapfb_mode_to_timings() had struct fb_info, struct fb_var and struct
fb_ops allocated from stack. This caused the stack usage grow quite
high.
Use kzalloc to allocate the structs instead.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add omap_rfbi_configure() which the panel driver can use to reconfigure
the data element size and the number of data lines in the RFBI bus.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
RFBI enables and disables clocks inside almost every function to get a
finegrained control to the clocks. However, the current understanding is
that this is not necessary power-management-wise.
Change the clocking scheme so that RFBI clocks are enabled when the
omapdss_rfbi_display_enable is called, and disabled when
omapdss_rfbi_display_disable is called.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add similar bus lock to RFBI as is in DSI. The panel driver can use the
bus lock to mark that the RFBI bus is currently in use.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
dpi.c does not compile if DSI is not compiled in. Add the missing dummy
functions so that dpi.c compiles.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Panel Taal driver uses the string "taal" to register for a backlight device.
This causes backlight_device_register() to fail when a second taal panel
is added. Use dev_name(&dssdev->dev) as a parameter instead of the string.
Note: This will break backlight related sysfs commands. Use the name as
generated by the DSS2 driver, in the form "displayi", which represents
the ith registered display device.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Introduce DSI2 PLL clock sources needed by LCD2 channel and DSI2 Protocol
engine and DISPC Functional clock. Do the following:
- Modify dss_get_dsi_clk_source() and dss_select_dsi_clk_source() to take the
dsi module number as an argument.
- Create debugfs files for dsi2, split the corresponding debugfs functions.
- Allow DPI to use these new clock sources.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
dsi_packet_sent_handler_vp() and dsi_packet_sent_handler_l4() currently
receive the completion parameter as their argument. This is not sufficient
information to differentiate between DSI1 and DSI2 platform devices.
Pass the struct "dsi_packet_sent_handler_data" to the packet_sent_handler
isrs, these contain the platform_device pointer of the DSI device and the
pointer to the completion struct.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The dsi related data structure currently creates one global instance of itself
which is accessed by dsi functions. Remove this global structure instance and
declare the struct as dsi_data. Modify dsi_init() to allocate a "dsi_data"
structure for each platform device instance. Link this data with the device's
platform_device pointer. Create the function dsi_get_dsidrv_data() which takes
the pdev and return a pointer to the device's dsi_data.
Make dsi_get_dsidev_id() return only 0 for now, this will be removed once the
name of the DSI platform device is changed to the device instance form, like
"omapdss_dsi.0" and "omapdss_dsi.1" etc.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The DSI interface is represented as a platform device, using the DSI platform
driver(dsi.c). The current DSI driver design is capable of running only one
instance of a DSI device. On OMAP4, there are 2 very similar DSI modules which
can be represented as instances of "omapdss_dsi" platform device.
Add member "module" in "dssdev.phy.dsi" that tells us which DSI module's lanes
the panel is connected to. Modify dsi.c functions to take the device's
platform_device struct pointer, provide functions dsi_get_dsidev_from_dssdev()
and dsi_get_dsidev_from_id() take the panel's omap_dss_device and module number
respectively, and return the platform_device pointer. Currently, the dsi struct
is declared globally and is accessed when dsi data is needed. The new pdev
argument will be used later to provide the platform device's dsi related data.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The function dsi_pll_init() has omap_dss_device argument which is
not used. Remove this argument.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add pointer to omap_dss_device struct as an argument in the functions which
are exported to dsi panel drivers. This argument will tell the DSI driver
which DSI interface's data it has to choose.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
When DBG() is used in a simple if-else, the resulting code path
currently depends on the definition of DBG(). Inserting the statement in
a "do { ... } while (0)" prevents this possible misuse.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
[tomi.valkeinen@ti.com: changed the title of the commit msg]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Rather than always add the omap2 dirs to the build list (and thus
force everyone to generate a useless built-in.o), bind the dirs to
their relevant kconfig symbol.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
DSS_IRQSTATUS register is available only on OMAP3, and reading it in
dss_dump_registers() on OMAP4 seems to cause a crash.
The register is not used for anything, and displaying its value is of no
use, so let's just remove it altogether.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
struct dispc_reg was originally used while migrating from old omapfb to
catch cases where the arguments to dispc_read_reg/dispc_write_reg were in
wrong order, since old omapfb had the arguments in reverse order.
Remove this struct and use u16 instead
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Represent manager/channel specific DISPC registers as inline functions returning
the required dispc_reg struct. This is done since the current method is not
scalable as the number of overlay managers increase in number.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Move all DISPC register definitions to a new header dispc.h. There are
separate register offset definitions for GFX, VID1 and VID2 pipeline share
register definitions by using an argument. The introduction of VID3 pipeline
on OMAP4 will not let us use the above method since VID3 pipe register offsets
don't map with VID1 and VID2 offsets.
Represent overlay registers as DISPC_OVL_XXXX(plane), where the plane argument
tells the overlay. Register offsets are calculated as:
DISPC_OVL_XXXX(plane) = DISPC_OVL_BASE(plane) + DISPC_XXXX_OFFSET(plane)
Idea suggested by Tomi Valkeinen.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
OMAP4 requires SCP clocks enabled to access DSI PLL registers and DSI COMPLEXIO
registers. Enable scp clock before accessing the registers and disable it before
exiting dsi_dump_regs().
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add support for Powertip PH480242T, a LCD 4.3inch (480x242) display
type with 24-bit RGB interface, to panel-generic-dpi.
Tested with IGEP v2 board.
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add support for Seiko 70WVW1TZ3, a LCD 7.0inch WVGA (800x480) display
type with 24-bit RGB interface and Touch-Panel, to panel-generic-dpi
Tested with IGEP v2 board.
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
By default, the DSI is not getting enabled for omap4.
OMAP2PLUS does not catch this issue since it has ARCH_OMAP3.
The issue is only seen when using defconfig with ARCH_OMAP4 only.
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Cc: Archit Taneja <archit@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
OMAP4 DSI block has new interrupts for the two new DSI lanes.
Add definitions for those interrupts, and add the interrupts to the CIO
error mask.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
ULPS is a low power state where the DSI lanes are kept at ground. This
patch implements ULPS by having a DSI bus inactivity timer which
triggers the entry to ULPS. ULPS exit will happen automatically when the
driver needs to do something on the DSI lanes.
The ulps_timeout is configurable from board file or via sysfs.
Additionally another sysfs file, "ulps", can be used to check the
current ULPS state, or to manually enter or exit ULPS.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
ESD workqueue will be shared with other functionality also. Rename
"esd_wq" to "workqueue" to better reflect its usage.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Separate panel reset code to a function of its own. This will keep the
code cleaner in the future when panel reset is called from multiple
locations.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
ESD check in Taal driver is currently on/off feature with hardcoded
interval. This patch changes it to a configurable interval, which can be
set from the board file.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The panel drivers can leave the VDDS_DSI regulator enabled, even when
the panel is disabled, to ensure that the DSI pins are powered.
This patch ensures that VDDS_DSI is disabled on DSI module unload.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add dsi_mux_pads function pointer to omap_dss_board_info, and use the
function pointer in DSI code to configure the DSI pads either to normal
DSI operation, or to pull down when in ULPS.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add parameter to omapdss_dsi_display_disable() which the panel driver
can use to tell if the DSI lanes should be put to ULPS before disabling
the interface.
This can be used to skip ULPS entry in cases where the panel doesn't
care about ULPS state, for example when the panel will be reset, or when
the display interface will be enabled again right after the disable.
This will speed up the operation considerably in cases where entering
ULPS would fail with timeout, and the panel driver isn't even interested
in entering ULPS.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add dsi_cio_wait_tx_clk_esc_reset() function which waits for the
TXCLKESC domains to come out of reset.
Things have worked fine without this, but better be safe than sorry.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
