Writing '1' to particular bit of IRQENABLE_CLEAR register disables the
corresponding interrupt on revision 2 LCDC. This register was wrongly
configured to disable all previous enabled interrupts instead of
disabling only palette completion interrupt. Patch fixes it by clearing
only palette completion interrupt bit.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
These devices are set to 640x480 by firmware, switch them to 800x600@60
so that the graphical installer can run on remote console.
Reported by IBM during SLES10 SP2 beta testing:
https://bugzilla.novell.com/show_bug.cgi?id=461002
LTC50817
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This patch replaces udelay and mdelay with usleep_range to remove
the busy loop waiting.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
The only INTERLANE_ALIGN_DONE bit should be checked for channel equalization
during Link Training. Previously, the other bits such as LINK_STATUS_UPDATED
were checked, and channel equalization procedure was repeated unnecessarily.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This patch fixes "section mismatch" warning in the epson1355fb driver.
WARNING: vmlinux.o(.devinit.text+0x184): Section mismatch in reference from the function epson1355fb_probe() to the function .init.text:fetch_hw_state()
The function __devinit epson1355fb_probe() references
a function __init fetch_hw_state().
If fetch_hw_state is only used by epson1355fb_probe then
annotate fetch_hw_state with a matching annotation.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Christopher Hoover <ch@murgatroid.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Wrong DPCD addresses were used for clock recovery during Link Training.
The training pattern should be set by TRAINING_PATTERN_SET (0x102), while
voltage swing and pre-emphasis should be set by TRAINING_LANE0_SET (0x103).
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Line 0 and 1 were both written to line 0 (on the display) and all subsequent
lines had an offset of -1. The result was that the last line on the display
was never overwritten by writes to /dev/fbN.
The origin of this bug seems to have been udlfb.
Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Cc: stable@vger.kernel.org
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This patch cleans up some coding style issues.
-Some lines are indented with 4 spaces, most of this code
is not used but it should be correctly indented anyway.
-I also fixed some long lines exceeding the 80 char limit.
Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Pull trivial tree from Jiri Kosina:
"Trivial updates all over the place as usual."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits)
Fix typo in include/linux/clk.h .
pci: hotplug: Fix typo in pci
iommu: Fix typo in iommu
video: Fix typo in drivers/video
Documentation: Add newline at end-of-file to files lacking one
arm,unicore32: Remove obsolete "select MISC_DEVICES"
module.c: spelling s/postition/position/g
cpufreq: Fix typo in cpufreq driver
trivial: typo in comment in mksysmap
mach-omap2: Fix typo in debug message and comment
scsi: aha152x: Fix sparse warning and make printing pointer address more portable.
Change email address for Steve Glendinning
Btrfs: fix typo in convert_extent_bit
via: Remove bogus if check
netprio_cgroup.c: fix comment typo
backlight: fix memory leak on obscure error path
Documentation: asus-laptop.txt references an obsolete Kconfig item
Documentation: ManagementStyle: fixed typo
mm/vmscan: cleanup comment error in balance_pgdat
mm: cleanup on the comments of zone_reclaim_stat
...
This branch contains two kinds of updates: Some platforms in the process
of getting converted to device tree based booting, and the platform
specific patches necessary for that are included here. Other platforms
are already converted, so we just need to update the actual device
tree source files and the binding documents to add support for new board
and new drivers.
In the future we will probably separate those into two branches, and
in the long run, the plan is to move the device tree source files out
of the kernel repository, but that has to wait until we have completed
a much larger portion of the binding documents.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc device tree description updates from Arnd Bergmann:
"This branch contains two kinds of updates: Some platforms in the
process of getting converted to device tree based booting, and the
platform specific patches necessary for that are included here.
Other platforms are already converted, so we just need to update the
actual device tree source files and the binding documents to add
support for new board and new drivers.
In the future we will probably separate those into two branches, and
in the long run, the plan is to move the device tree source files out
of the kernel repository, but that has to wait until we have completed
a much larger portion of the binding documents."
Fix up trivial conflicts in arch/arm/mach-imx/clk-imx6q.c due to newly
added clkdev registers next to a few removed unnecessary ones.
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
ARM: LPC32xx: Add PWM to base dts file
ARM: EXYNOS: mark the DMA channel binding for SPI as preliminary
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5
ARM: EXYNOS: Add spi clock support for EXYNOS5
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4
ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock
ARM: ux500: Remove PMU platform registration when booting with DT
ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure
ARM: ux500: Ensure vendor specific properties have the vendor's identifier
pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled
ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices
ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree
ARM: ux500: Apply ab8500-debug node do the db8500 DT structure
ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices
ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm
ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl
ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT
...
pwm_backlight_update_status calls the notify() and notify_after()
callbacks before and after applying the new PWM settings. However, if
brightness levels are used, the brightness value will be changed from
the index into the levels array to the PWM duty cycle length before
being passed to notify_after(), which results in inconsistent behavior.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
This commit adds very basic support for device tree probing. Currently,
only a PWM and a list of distinct brightness levels can be specified.
Enabling or disabling backlight power via GPIOs is not yet supported.
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
The chroma plane offset in memory is equal to the luma plane maximum
size. Fix offset computations.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Updating overlay registers require switching to overlay update mode.
This was correctly done when configuring the overlay format and size,
but not when updating the base address registers during pan operation.
Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Copy the x and y virtual resolutions from the channel information
instead of recomputing them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The API can be used to allocate and free MERAM blocks directly, without
going through ICBs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
There's no reason to use abstract operation pointers to implement the
MERAM API. Replace them by direct function calls.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The MERAM operations meram_register, meram_unregister and meram_update
handle LCDC cache. In preparation for "raw" MERAM allocation, rename
them to more appropriate names.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
I no longer have a mailbox at smsc.com, and I've had two reports
that that email address now bounces from people trying to
contact me. This patch updates all references to that invalid
address to one that I can be contacted on more permanently.
This patch also updates the maintainer status to reflect
the fact I'm no longer directly paid to maintain these drivers.
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
- two fixes for OMAPDSS by Tomi Valkeinen
one to avoid warnings when runtime PM is not enabled
one workaround to dependancy issues during suspend/resume
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Merge tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6
Pull fbdev fixes from Florian Tobias Schandinat:
"Two fixes for OMAPDSS by Tomi Valkeinen:
- one to avoid warnings when runtime PM is not enabled
- one workaround to dependancy issues during suspend/resume"
* tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6:
OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
OMAPDSS: Use PM notifiers for system suspend
Add support for Virge/MX (86C260) chip. Although this is a laptop chip,
there's an AGP card with this chip too.
Tested with AGP card, will probably not work correctly with laptops.
DDC does not work on this card (even in DOS or Windows).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This patch fixes two problems with the error handling in the
grvga_probe function and simplifies it making the code
easier to read.
- If the call to grvga_parse_custom on line 370 fails we use
the wrong label so that release_mem_region will be called
without a call to request_mem_region being made.
- If the call to ioremap on line 436 fails we should not try
to call iounmap in the error handling code.
This patch introduces the following changes:
- Converts request_mem_region into its devm_ equivalent
which simplifies the otherwise messy clean up code.
- Changes the labels for correct error handling and their
names to make the code easier to read.
Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
In 2006 and 2007 the handhelds.org kernel w100fb driver was patched to
reduce sleep mode battery discharge. Unfortunately those two patches
never migrated to the mainline kernel.
Fortunately the function affected - w100_suspend() - has not changed
since; thus those patches still apply cleanly.
Applying those patches to linux-3.4-rc3 running on an HP iPAQ hx4700
reduces the sleep mode battery discharge from approximately 26 mA to
approximately 11 mA.
This patch combines those two patches into a single unified patch.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Cc: Matt Reimer <mreimer@sdgsystems.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
If runtime PM is not enabled in the kernel config, pm_runtime_get_sync()
will always return 1 and pm_runtime_put_sync() will always return
-ENOSYS. pm_runtime_get_sync() returning 1 presents no problem to the
driver, but -ENOSYS from pm_runtime_put_sync() causes the driver to
print a warning.
One option would be to ignore errors returned by pm_runtime_put_sync()
totally, as they only say that the call was unable to put the hardware
into suspend mode.
However, I chose to ignore the returned -ENOSYS explicitly, and print a
warning for other errors, as I think we should get notified if the HW
failed to go to suspend properly.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
The current way how omapdss handles system suspend and resume is that
omapdss device (a platform device, which is not part of the device
hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses
the suspend and resume callbacks from platform_driver to handle system
suspend. It does this by disabling all enabled panels on suspend, and
resuming the previously disabled panels on resume.
This presents a few problems.
One is that as omapdss device is not related to the panel devices or the
DSS HW devices, there's no ordering in the suspend process. This means
that suspend could be first ran for DSS HW devices and panels, and only
then for omapdss device. Currently this is not a problem, as DSS HW
devices and panels do not handle suspend.
Another, more pressing problem, is that when suspending or resuming, the
runtime PM functions return -EACCES as runtime PM is disabled during
system suspend. This causes the driver to print warnings, and operations
to fail as they think that they failed to bring up the HW.
This patch changes the omapdss suspend handling to use PM notifiers,
which are called before suspend and after resume. This way we have a
normally functioning system when we are suspending and resuming the
panels.
This patch, I believe, creates a problem that somebody could enable or
disable a panel between PM_SUSPEND_PREPARE and the system suspend, and
similarly the other way around in resume. I choose to ignore the problem
for now, as it sounds rather unlikely, and if it happens, it's not
fatal.
In the long run the system suspend handling of omapdss and panels should
be thought out properly. The current approach feels rather hacky.
Perhaps the panel drivers should handle system suspend, or the users of
omapdss (omapfb, omapdrm) should handle system suspend.
Note that after this patch we could probably revert
0eaf9f52e9 (OMAPDSS: use sync versions of
pm_runtime_put). But as I said, this patch may be temporary, so let's
leave the sync version still in place.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Joe Woodward <jw@terrafix.co.uk>
Signed-off-by: Archit Taneja <archit@ti.com>
[fts: fixed 2 brace coding style issues]
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Add a simple device tree probe support for mxsfb driver. Before
a common binding for struct fb_videomode is available, the driver will
keep using struct mxsfb_platform_data. That said, platform code will
use auxdata to attach mxsfb_platform_data for device tree boot.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Replication logic for an overlay depends on the color mode in which it is
configured and the video port width of the manager it is connected to.
video port width now held in dss_lcd_mgr_config in the manager's private
data in APPLY. Use this instead of referring to the omap_dss_device connected to
the manager.
Replication is enabled in the case of TV manager, the video_port_width is set to
a default value of 24 for TV manager.
Make the replication checking an overlay function since it's more of an overlay
characteristic than a display characteristic.
Signed-off-by: Archit Taneja <archit@ti.com>
The RFBI driver uses a direct DISPC register write to enable the overlay
manager. Replace this with dss_mgr_enable() which checks if the connected
overlay and managers are correctly configured, and configure DSS for
fifomerge.
Signed-off-by: Archit Taneja <archit@ti.com>
dss_mgr_is_lcd() available in dss.h does the same thing as dispc_mgr_is_lcd()
in dispc.c. Remove the function from dispc.c and replace it with the one in
dss.h.
Signed-off-by: Archit Taneja <archit@ti.com>
APPLY needs to know at certain places whether an overlay manager is in manual
or auto update mode. The caps of the connected omap_dss_device were used to
check that.
A LCD manager is in manual update if stallmode is enabled for that manager. TV
managers for now always auto update.
Return the value of stallmode parameter in the private data 'lcd_confg' in
mgr_manual_update() and ovl_manual_update(), for TV managers stallmode field
will be false by default.
Signed-off-by: Archit Taneja <archit@ti.com>
The LCD related manager configurations are a part of the manager's private data
in APPLY. Pass this to dss_lcd_mgr_config to dss_mgr_check and create a function
to check the validity of some of the configurations.
To check some of the configurations, we require information of interface to
which the manager output is connected. These can be added once interfaces are
represented as an entity.
Signed-off-by: Archit Taneja <archit@ti.com>
Replace the DISPC fuctions used to configure LCD channel related manager
parameters with dss_mgr_set_lcd_config() in APPLY. This function ensures that
the DISPC registers are written at the right time by using the shadow register
programming model.
The LCD manager configurations is stored as a private data of manager in APPLY.
It is treated as an extra info as it's the panel drivers which trigger this
apply via interface drivers, and not a DSS2 user like omapfb or omapdrm.
Storing LCD manager related properties in APPLY also prevents the need to refer
to the panel connected to the manager for information. This helps in making the
DSS driver less dependent on panel.
A helper function is added to check whether the manager is LCD or TV. The direct
DISPC register writes are removed from the interface drivers.
Signed-off-by: Archit Taneja <archit@ti.com>
Create a dss_lcd_mgr_config struct instance in SDI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by SDI.
Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.
Create function sdi_config_lcd_manager() which fills the mgr_config parameters
and writes to the DISPC registers.
Signed-off-by: Archit Taneja <archit@ti.com>
Create a dss_lcd_mgr_config struct instance in DSI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by DSI.
Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.
The function dsi_configure_dispc_clocks() is now called in
dsi_display_init_dispc(), this lets all the lcd manager related configurations
happen in the same place. The DISPC_DIVISORo register was written in
dsi_configure_dispc_clock(), now it just fills up the dispc_clock_info parameter
in mgr_config. The clock_info is written later in dsi_display_init_dispc().
Signed-off-by: Archit Taneja <archit@ti.com>
Create a dss_lcd_mgr_config struct instance in RFBI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by RFBI.
Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.
Create function rfbi_config_lcd_manager() which fills up the mgr_config
parameters and writes to the DISPC regs.
Signed-off-by: Archit Taneja <archit@ti.com>
Create a dss_lcd_mgr_config struct instance in DPI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by DPI.
Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.
The DISPC_DIVISORo registers were written in the functions dpi_set_dispc_clk()
and dpi_set_dsi_clk(), now they just fill up the dispc_clock_info parameter in
mgr_config. They are written later in dpi_config_lcd_manager.
Signed-off-by: Archit Taneja <archit@ti.com>
Create a struct dss_lcd_mgr_config which holds LCD overlay manager related
parameters. These are currently partially contained in the omap_dss_device
connected to the manager, and the rest are in the interface driver.
The parameters are directly written to the DISPC registers in the interface
drivers. These should eventually be applied at the correct time using the
shadow register programming model. This struct would help in grouping these
parameters so that they can be applied together.
Signed-off-by: Archit Taneja <archit@ti.com>
dipsc_mgr_set_clock div has an int return type to report errors or success.
The function doesn't really check for errors and always returns 0. Change
the return type to void.
Checking for the correct DISPC clock divider ranges will be done when a DSS2
user does a manager apply. This support will be added later.
Signed-off-by: Archit Taneja <archit@ti.com>
For DSI operation in videomode, DISPC logic levels for the signals HSYNC, VSYNC
and DE need to be specified to DSI via the fields VP_HSYNC_POL, VP_VSYNC_POL and
VP_DE_POL in DSI_CTRL registers.
This information is completely internal to DSS as logic levels for the above
signals hold no meaning on the DSI bus. Hence a DSI panel driver should be
totally oblivious of these fields.
Fix the logic levels/polarities in the DISPC and DSI registers to a default
value. This is done by overriding these fields in omap_video_timings struct
filled by the panel driver for DISPC, and use the equivalent default values
when programming DSI_CTRL registers. Also, remove the redundant polarity related
fields in omap_dss_dsi_videomode_data.
Signed-off-by: Archit Taneja <archit@ti.com>
