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path: root/drivers/video/omap2
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2010-12-15OMAP: DSS: VRAM: Align start & size of vram to 2MTomi Valkeinen
Align the start address and size of VRAM area to 2M as per comments from Russell King: > > So, why SZ_2M? > > Firstly, that's the granularity which we allocate page tables - one > Linux page table covers 2MB of memory. We want to avoid creating page > tables for the main memory mapping as that increases TLB pressure through > the use of additional TLB entries, and more page table walks. > > Plus, we never used to allow the kernel's direct memory mapping to be > mapped at anything less than section size - this restriction has since > been lifted due to OMAP SRAM problems, but I'd rather we stuck with it > to ensure that we have proper behaviour from all parts of the system. > > Secondly, we don't want to end up with lots of fragmentation at the end > of the memory mapping as that'll reduce performance, not only by making > the pfn_valid() search more expensive. > > Emsuring a minimum allocation size and alignment makes sure that the > regions can be coalesced together into one block, and minimises run-time > expenses. > > So please, 2MB, or if you object, at the _very_ _least_ 1MB. But > definitely not PAGE_SIZE. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com>
2010-11-10OMAP: VRAM: Fix boot-time memory allocationTomi Valkeinen
Use memblock_free() and memblock_remove() to remove the allocated or reserved VRAM area from normal kernel memory. This is a slightly modified version of patches from Felipe Contreras and Namhyung Kim. Reported-by: Felipe Contreras <felipe.contreras@gmail.com> Reported-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-10OMAP: VRAM: improve VRAM error printsTomi Valkeinen
Improve the error prints to give more information about the offending address & size. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-26Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linuxLinus Torvalds
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: OMAP: DSS2: don't power off a panel twice OMAP: DSS2: OMAPFB: Allow usage of def_vrfb only for omap2,3 OMAP: DSS2: OMAPFB: make VRFB depends on OMAP2,3 OMAP: DSS2: OMAPFB: Allow FB_OMAP2 to build without VRFB arm/omap: simplify conditional OMAP: DSS2: DSI: Remove extra iounmap in error path OMAP: DSS2: Use dss_features framework on DSS2 code OMAP: DSS2: Introduce dss_features files video/omap: remove mux.h include ARM: omap/fb: move get_fbmem_region() to .init.text ARM: omap/fb: move omapfb_reserve_sram to .init.text ARM: omap/fb: move omap_init_fb to .init.text OMAP: DSS2: OMAPFB: swap front and back porches for both hsync and vsync OMAP: DSS2: make filter coefficient tables human readable OMAP: DSS2: Add SPI dependency to Kconfig of ACX565AKM panel
2010-10-22OMAP: DSS2: don't power off a panel twiceStanley.Miao
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: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: OMAPFB: Allow usage of def_vrfb only for omap2,3Senthilvadivu Guruswamy
VRFB is supported only on OMAP2 and OMAP3 platforms. If VRFB rotation is not supported by the hardware and the user requests VRFB rotation, print a warning and ignore the request from the user. Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: OMAPFB: make VRFB depends on OMAP2,3Senthilvadivu Guruswamy
config VRFB should depend on ARCH_OMAP2 or ARCH_OMAP3. Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: DSI: Remove extra iounmap in error pathSenthilvadivu Guruswamy
iounmap is already done in label err2: so extra iounmap in the error handling path could be removed. Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: Use dss_features framework on DSS2 codeArchit Taneja
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: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: Introduce dss_features filesArchit Taneja
Add dss_features.c and dss_features.h for the dss_features framework. This framework will be used to move all cpu_is_xxx() and similar calls to a single place. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-22OMAP: DSS2: OMAPFB: swap front and back porches for both hsync and vsyncTasslehoff Kjappfot
Framebuffer's left and right margins are relative to the active pixel area. Front and back porches are relative to the sync area. Left margin was wrongly assigned to front porch (and right to back), this patch fixes it. Signed-off-by: tasskjapp@gmail.com Reviewed-by: Russ.Dill@gmail.com Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-10-08memblock/arm: Fix memblock_region_is_memory() typoYinghai Lu
Fix typo in commit dbe3039 ("memblock/arm: Use memblock_region_is_memory() for omap fb") - it should be memblock_is_region_memory(). Reported-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Felipe Balbi <balbi@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: ext Grazvydas Ignotas <notasas@gmail.com> LKML-Reference: <4CABFADA.9020305@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-29OMAP: DSS2: make filter coefficient tables human readableGrazvydas Ignotas
Reorganize scaler FIR filter data as FIR value tables from raw register values. This makes them easier to understand and simplifies register programming code. No functional changes. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-09-29OMAP: DSS2: Add SPI dependency to Kconfig of ACX565AKM panelJarkko Nikula
This panel driver is using SPI for its communication so add CONFIG_SPI dependency. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Roger Quadros <roger.quadros@nokia.com> Cc: Tomi Valkeinen <tomi.valkeinen@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-31Merge commit 'v2.6.36-rc3' into x86/memblockIngo Molnar
Conflicts: arch/x86/kernel/trampoline.c mm/memblock.c Merge reason: Resolve the conflicts, update to latest upstream. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-08-08Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linuxLinus Torvalds
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: (64 commits) OMAP: DSS2: OMAPFB: add support for FBIO_WAITFORVSYNC OMAP: DSS2: Replace strncmp() with sysfs_streq() in overlay_manager_store() OMAP: DSS2: Fix error path in omap_dsi_update() OMAP: DSS2: TDO35S: fix video signaling OMAP: DSS2: OMAPFB: Fix invalid bpp for PAL and NTSC modes OMAP: DSS2: OMAPFB: Fix probe error path OMAP3EVM: Replace vdvi regulator supply with vdds_dsi OMAP: DSS2: Remove extra return statement OMAP: DSS2: adjust YUV overlay width to be even OMAP: DSS2: OMAPFB: Fix sysfs mirror input check OMAP: DSS2: OMAPFB: Remove redundant color register range check OMAP: DSS2: OMAPFB: Remove redundant rotate range check OMAP: DSS2: OMAPFB: Check fb2display() return value OMAP: DSS2: Taal: Optimize enable_te, rotate, mirror when value unchanged OMAP: DSS2: DSI: detect unsupported update requests OMAP: DSS2: DSI: increase FIFO low threshold OMAP: DSS2: DSI: Add error IRQ mask for DSI complexIO OMAP: DSS2: DSI: Remove BTA after set_max_rx_packet_size OMAP: DSS2: change manual update scaling setup OMAP: DSS2: DSI: use BTA to end the frame transfer ...
2010-08-05OMAP: DSS2: OMAPFB: add support for FBIO_WAITFORVSYNCGrazvydas Ignotas
FBIO_WAITFORVSYNC is a stardard ioctl for waiting vsync, already used by some userspace, so add it as an alias for OMAPFB_WAITFORVSYNC. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: Replace strncmp() with sysfs_streq() in overlay_manager_store()Archit Taneja
The function overlay_manager_store currently fails if the sysfs input is a prefix string of an existing overlay manager name. This occurs because strncmp compares the two strings only till the length of the input sysfs string. So a sysfs input "lcd" will match manager name "lcd2" which is incorrect behavior. The use of sysfs_streq here will prevent this false positive match to occur. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: Fix error path in omap_dsi_update()Archit Taneja
In the case of an error on calling dsi_update_screen_l4(), a successful framedone callback is still sent to panel-taal. An error should be returned to taal_update() instead. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: TDO35S: fix video signalingIgor Grinberg
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: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Fix invalid bpp for PAL and NTSC modesMaurus Cuelenaere
omapfb_mode_to_timings() sets the bpp to 0 when bootarg omapfb.mode is set to either "pal" or "ntsc". This patch corrects this by setting the bpp to 24, as would be done if omapdss_default_get_recommended_bpp() would be called. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Fix probe error pathAfzal Mohammed
Move sysfs entry creation to omapfb_probe() from omapfb_create_framebuffers(). This will make sure that sysfs entry is not left behind in case of unsuccessful probe due to failure in enabling fb0 of omapfb_create_framebuffers(). Signed-off-by: Afzal Mohammed <lazfamam@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: Remove extra return statementArchit Taneja
Remove extra return statement in omapdss_default_get_recommended_bpp from overlay.c Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: adjust YUV overlay width to be evenTomi Valkeinen
An overlay in YUV mode has to have an even input width, because data for each pixel is divided between two adjacent pixels. The algorithm handling manual update overlay adjusting may adjust the overlay width to be odd. This patch adds a check for that situation, and makes the width even. The width is increased by one if it is possible (the unadjusted input width is larger than the width), and decreased by one if increasing is not possible. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Fix sysfs mirror input checkJani Nikula
Using bool silently converted input to 0 or 1, making the range check useless. Use unsigned long instead, and convert to bool later. Found by Coverity. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Remove redundant color register range checkJani Nikula
Unsigned regno can never be less than zero. Found by Coverity. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Remove redundant rotate range checkJani Nikula
Unsigned rotate can never be less than zero. Found by Coverity. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: OMAPFB: Check fb2display() return valueJani Nikula
Make sure NULL return value of fb2display() is not referenced. Found by Coverity. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: Taal: Optimize enable_te, rotate, mirror when value unchangedTomi Valkeinen
Skip any further processing of taal_enable_te(), taal_rotate(), and taal_mirror() if value remains unchanged. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: detect unsupported update requestsTomi Valkeinen
OMAP DSS HW cannot send updates with odd widths. Normally the widths are made even while preparing the update. This patch adds a BUG_ON() to check if the update width is even. This is to detect broken updates cleanly, as otherwise the OMAP DSS HW will just halt, leading to obscure error situations. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: increase FIFO low thresholdTomi Valkeinen
The current FIFO low threshold was too low, and caused the FIFO to run empty when core domain went to INA state between FIFO fills. This patch increases the low threshold to keep that from happening. The threshold values depend quite much on the HW and the use cases, so this should actually be somehow configurable from board files, perhaps. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Add error IRQ mask for DSI complexIOTomi Valkeinen
The code presumed that all ComplexIO interrupts are errors. This is not the case. This patch adds proper error mask for CIO interrupt handling. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Remove BTA after set_max_rx_packet_sizeTomi Valkeinen
SMRPS function always sent BTA after sending the SMRPS packet. This is not needed, and also caused some (buggy) panels to bug. This patch removes the BTA. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: change manual update scaling setupTomi Valkeinen
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: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: use BTA to end the frame transferTomi Valkeinen
Previously a work was started on FRAMEDONE interrupt, and this work either sent a BTA synchronously or looped until TE_SIZE was zero, to wait for the end of the transfer. This patch changes a BTA to be sent asynchronously from FRAMEDONE interrupt, and when a BTA interrupt is received, the transfer is finished. This way we do the whole process asynchronously, and also inside interrupt context. This will give us much better latency to handle the end of the frame than with the previous work based solution. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: change dsi_vc_config_l4/vp()Tomi Valkeinen
Change dsi_vc_config_l4/vp() to loop for the VC_BUSY flag to change, and return an error if it fails. Busy looping is bad, but there's no interrupt that can be used for all the cases where VC can be busy. So the caller should first try to make sure that the VC is not busy, if possible, and then call dsi_vc_config_l4/vp(). Most notable case when the caller cannot be sure if the VC is busy is after frame has been sent. Usually DSI buffers have been emptied until we need to reconfig the VC, but in some rare cases the VC can still be busy, and this patch will handle that case. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Disable interface when disabling the displayVille Syrjälä
Once the DSI PLL is separated from the DSI display a full DSI reset will not be performed every time the display is enabled so the interface and VCs must be disabled when disabling the display. If the VCs are not disabled some register accesses will abort. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Wait for DSI PLL clocks to be active before selecting themTomi Valkeinen
The TRM tells us to wait for the DSI PLL derived clocks to become active before selecting them for use. I didn't actually have any issues which this would fix but according to the TRM it seems to be the right thing to do. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Print an error message if DSI clock calc failsVille Syrjälä
Print an error message if dsi_calc_clock_rates() fails just like it's done when dispc_calc_clock_rates() fails. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05OMAP: DSS2: DSI: Disable PCKFREE on errorVille Syrjälä
Do not leave the free running pixel clock enabled if the DSI PLL reset times out. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-04Merge branch 'v4l_for_2.6.35' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (243 commits) V4L/DVB: sms: Convert IR support to use the Remote Controller core V4L/DVB: sms: properly initialize IR phys and IR name V4L/DVB: standardize names at rc-dib0700 tables V4L/DVB: smsusb: enable IR port for Hauppauge WinTV MiniStick V4L/DVB: dib0700: Fix RC protocol logic to properly handle NEC/NECx and RC-5 V4L/DVB: dib0700: properly implement IR change_protocol V4L/DVB: dib0700: break keytable into NEC and RC-5 variants V4L/DVB: dib0700: avoid bad repeat V4L/DVB: Port dib0700 to rc-core V4L/DVB: Add a keymap file with dib0700 table V4L/DVB: dvb-usb: add support for rc-core mode V4L/DVB: dvb-usb: prepare drivers for using rc-core V4L/DVB: dvb-usb: get rid of struct dvb_usb_rc_key V4L/DVB: rj54n1cb0c: fix a comment in the driver V4L/DVB: V4L2: sh_vou: VOU does support the full PAL resolution too V4L/DVB: V4L2: sh_mobile_camera_ceu: add support for CSI2 V4L/DVB: V4L2: soc-camera: add a MIPI CSI-2 driver for SH-Mobile platforms V4L/DVB: V4L2: soc-camera: export soc-camera bus type for notifications V4L/DVB: V4L2: mediabus: add 12-bit Bayer and YUV420 pixel formats V4L/DVB: mediabus: fix ambiguous pixel code names ...
2010-08-04memblock/arm: Use memblock_region_is_memory() for omap fbBenjamin Herrenschmidt
Instead of the deprecated memblock_find() Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-08-04memblock: Rename memblock_region to memblock_type and memblock_property to ↵Benjamin Herrenschmidt
memblock_region Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-08-03OMAP: DSS2: Taal: CABC workaround is Taal specificJani Nikula
Prepare for supporting panels other than Taal in this driver. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Add regulator configuration supportTomi Valkeinen
Add support for configuring regulators in the panel specific configuration data. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Print panel name in addition to revisionJani Nikula
The driver will support other panels in addition to Taal, print also the name. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Add panel specific configuration structureJani Nikula
Add a structure for panel specific configration to be able to support more than one panel in the future. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Configure ESD check in DSI panel dataJani Nikula
Make ESD check usage configurable in DSI panel data, as opposed to a define. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Use Nokia DSI panel dataTomi Valkeinen
Get board specific information from the Nokia DSI panel data structure instead of the DSS. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03OMAP: DSS2: Taal: Add proper external TE supportJani Nikula
Add gpio irq based external TE support with timeout. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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