| Commit message (Collapse) | Author | Age |
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Fix a build failure "error: void value not ignored as it ought to be"
by removing an assignment of a void return value. The functionality of
the code is not changed.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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After the commit that changed ipmi_si detecting sequence from SMBIOS/ACPI
to ACPI/SMBIOS,
| commit 754d453185275951d39792865927ec494fa1ebd8
| Author: Matthew Garrett <mjg@redhat.com>
| Date: Wed May 26 14:43:47 2010 -0700
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| ipmi: change device discovery order
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| The ipmi spec provides an ordering for si discovery. Change the driver to
| match, with the exception of preferring smbios to SPMI as HPs (at least)
| contain accurate information in the former but not the latter.
ipmi_si can not be initialized.
[ 138.799739] calling init_ipmi_devintf+0x0/0x109 @ 1
[ 138.805050] ipmi device interface
[ 138.818131] initcall init_ipmi_devintf+0x0/0x109 returned 0 after 12797 usecs
[ 138.822998] calling init_ipmi_si+0x0/0xa90 @ 1
[ 138.840276] IPMI System Interface driver.
[ 138.846137] ipmi_si: probing via ACPI
[ 138.849225] ipmi_si 00:09: [io 0x0ca2] regsize 1 spacing 1 irq 0
[ 138.864438] ipmi_si: Adding ACPI-specified kcs state machine
[ 138.870893] ipmi_si: probing via SMBIOS
[ 138.880945] ipmi_si: Adding SMBIOS-specified kcs state machineipmi_si: duplicate interface
[ 138.896511] ipmi_si: probing via SPMI
[ 138.899861] ipmi_si: Adding SPMI-specified kcs state machineipmi_si: duplicate interface
[ 138.917095] ipmi_si: Trying ACPI-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0
[ 138.928658] ipmi_si: Interface detection failed
[ 138.953411] initcall init_ipmi_si+0x0/0xa90 returned 0 after 110847 usecs
in smbios has
DMI/SMBIOS
Handle 0x00C5, DMI type 38, 18 bytes
IPMI Device Information
Interface Type: KCS (Keyboard Control Style)
Specification Version: 2.0
I2C Slave Address: 0x00
NV Storage Device: Not Present
Base Address: 0x0000000000000CA2 (I/O)
Register Spacing: 32-bit Boundaries
in DSDT has
Device (BMC)
{
Name (_HID, EisaId ("IPI0001"))
Method (_STA, 0, NotSerialized)
{
If (LEqual (OSN, Zero))
{
Return (Zero)
}
Return (0x0F)
}
Name (_STR, Unicode ("IPMI_KCS"))
Name (_UID, Zero)
Name (_CRS, ResourceTemplate ()
{
IO (Decode16,
0x0CA2, // Range Minimum
0x0CA2, // Range Maximum
0x00, // Alignment
0x01, // Length
)
IO (Decode16,
0x0CA6, // Range Minimum
0x0CA6, // Range Maximum
0x00, // Alignment
0x01, // Length
)
})
Method (_IFT, 0, NotSerialized)
{
Return (One)
}
Method (_SRV, 0, NotSerialized)
{
Return (0x0200)
}
}
so the reg spacing should be 4 instead of 1.
Try to calculate regspacing for this kind of system.
Observed on a Sun Fire X4800. Other OSes work and pass certification.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Myron Stowe <myron.stowe@hp.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
drm: fix fallouts from slow-work -> wq conversion
workqueue: workqueue_cpu_callback() should be cpu_notifier instead of hotcpu_notifier
workqueue: add missing __percpu markup in kernel/workqueue.c
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Commit 991ea75c (drm: use workqueue instead of slow-work), which made
drm to use wq instead of slow-work, didn't account for the return
value difference between delayed_slow_work_enqueue() and
queue_delayed_work(). The former returns 0 on success and -errno on
failures while the latter never fails and only uses the return value
to indicate whether the work was already pending or not.
This misconversion triggered spurious error messages. Remove the now
unnecessary return value check and error message.
Markus: caught another incorrect conversion in drm_kms_helper_poll_enable()
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
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* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: check kmalloc() result
arch/tile: catch up on various minor cleanups.
arch/tile: avoid erroneous error return for PTRACE_POKEUSR.
tile: set ARCH_KMALLOC_MINALIGN
tile: remove homegrown L1_CACHE_ALIGN macro
arch/tile: Miscellaneous cleanup changes.
arch/tile: Split the icache flush code off to a generic <arch> header.
arch/tile: Fix bug in support for atomic64_xx() ops.
arch/tile: Shrink the tile-opcode files considerably.
arch/tile: Add driver to enable access to the user dynamic network.
arch/tile: Enable more sophisticated IRQ model for 32-bit chips.
Move list types from <linux/list.h> to <linux/types.h>.
Add wait4() back to the set of <asm-generic/unistd.h> syscalls.
Revert adding some arch-specific signal syscalls to <linux/syscalls.h>.
arch/tile: Do not use GFP_KERNEL for dma_alloc_coherent(). Feedback from fujita.tomonori@lab.ntt.co.jp.
arch/tile: core support for Tilera 32-bit chips.
Fix up the "generic" unistd.h ABI to be more useful.
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None of these changes fix any actual bugs, but are just various cleanups
that fell out along the way. In particular, some unused #defines and
includes are removed, PREFETCH_STRIDE is added (the default is right for
our shipping chips, but wrong for our next generation), our tile-specific
prefetching code is removed so the (identical) generic prefetching code
can be used instead, a comment is fixed to be proper GPL and not just a
"paste GPL here" token, a "//" comment is converted to "/* */", etc.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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This change is the core kernel support for TILEPro and TILE64 chips.
No driver support (except the console driver) is included yet.
This includes the relevant Linux headers in asm/; the low-level
low-level "Tile architecture" headers in arch/, which are
shared with the hypervisor, etc., and are build-system agnostic;
and the relevant hypervisor headers in hv/.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Paul Mundt <lethal@linux-sh.org>
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* 'for-linus' of git://github.com/schandinat/linux-2.6:
drivers/video/via/via-gpio.c: fix warning
viafb: Depends on X86
fbdev: section cleanup in viafb driver
viafb: fix accel_flags check_var bug
viafb: probe cleanups
viafb: remove ioctls which break the framebuffer interface
viafb: update fix before calculating depth
viafb: PLL value cleanup
viafb: simplify lcd size "detection"
viafb: fix PCI table
viafb: add lcd scaling support for some IGPs
viafb: improve lcd code readability
viafb: remove duplicated scaling code
MAINTAINERS: update viafb entry
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drivers/video/via/via-gpio.c: In function 'viafb_gpio_probe':
drivers/video/via/via-gpio.c:216: warning: assignment from incompatible pointer type
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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VIA UniChrome and Chrome9 GPUs only exist as Integrated Graphics
Processors in x86 chipsets.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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This patch moves two functions from .devexit to .text,
which are called on the probe error path.
Also a function which is called by probe is moved
from .text to .devinit.
WARNING: vmlinux.o(.devinit.text+0x2ca5): Section mismatch in reference
from the function via_pci_probe() to the function
devexit.text:via_teardown_subdevs()
The function __devinit via_pci_probe() references
a function __devexit via_teardown_subdevs().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
via_teardown_subdevs() so it may be used outside an exit section.
WARNING: vmlinux.o(.devinit.text+0x2cb1): Section mismatch in reference
from the function via_pci_probe() to the function
devexit.text:via_pci_teardown_mmio()
The function __devinit via_pci_probe() references
a function __devexit via_pci_teardown_mmio().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
via_pci_teardown_mmio() so it may be used outside an exit section.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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viafb: fix accel_flags check_var bug
In check_var we should check and modify the var given and not the
one which is currently active. So this code was obviously wrong.
Probably this was doing no harm because all acceleration functions
also check whether acceleration is possible. (otherwise I would
expect this to lead to a null pointer dereference)
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: probe cleanups
Removal of strange special cases that must not exist as well as a
useless check.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: remove ioctls which break the framebuffer interface
The ioctls VIAFB_SET_DEVICE, VIAFB_SET_DEVICE_INFO and
VIAFB_SET_SECOND_MODE are removed because they prevent a clean
framebuffer driver because they modify the hardware and/or the
internal structures.
There are no known applications using these ioctls so no breakage is
expected. Additionaly the main functionality was duplicating the
framebuffer interface so there really should not exist any user.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: update fix before calculating depth
As the depth calculation depends on information in fix it is saner to
do the update first.
No runtime change expected as the value visual in fix used never
changes to MONO.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: PLL value cleanup
This is a big change of how PLL values are handled on the road to
dynamic PLL value generation. The table was converted automatically in
the relevant parameters for frequency generation. Sadly there were some
bits set whose meaning is unknown. Those differences are documented
but ignored as the unichrome code implies that they are not important
(a big thanks to Luc for his amazing work).
The PLL values for 31490000 and 133308000 are deleted as they were more
than 5% off and not used anyway. The values for CX700@60466000 and
VX855@153920000 are corrected as they were wrong and easily correctable
as enough correct values was available because CX700 and VX855 support
the same values only with a little difference in hardware format.
All remaining values are not more than 2% off.
Additionally the surrounding code is changed as needed especially the
byte order of the values written to hardware to allow nicer conversion
functions.
This is mostly a change preparing for dynamic PLL generation and the two
corrected values aside no runtime change is expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: simplify lcd size "detection"
Remove all occurences of get_lcd_size_method as only the values
GET_LCD_SIZE_BY_VGA_BIOS and GET_LCD_SIZE_BY_USER_SETTING were used
which had the identical code so there is no need to make things look
more complicated than they actually are.
Just a bit of of cleanup, really no regressions expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: fix PCI table
This patch fixes an oddity in the device table where the P4M890 ID was
assigned with the enumeration value of CN700 which itself was missing.
This is a regression introduced by
"viafb: make viafb a first-class citizen using pci_driver"
While at it reorder the table to reflect the order of the enumeration
values.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Harald Welte <laforge@gnumonks.org>
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viafb: add lcd scaling support for some IGPs
These IGPs should also support lcd scaling but likely this switch was
missed when adding support for them. Fix it, allowing lcd scaling on
CN750, VX800 and VX855. At least this improves the situation for
VX855. (there seems to be another scaling unrelated bug somewhere)
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: improve lcd code readability
This changes the code to better reflect that we can (currently) only
perform upscaling.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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viafb: remove duplicated scaling code
The code for P4M900 does the same as for all newer IGPs so there is no
reason to duplicate it. Just reducing the code to maintain.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
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* '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
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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