Correct the returned error code for remapping the video framebuffer.
Introduce error handling for remapping MMIO register address space to
avoid a NULL pointer dereference. Disable hardware acceleration if
remapping MMIO register address space failed as those registers are only
used for hardware acceleration.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move individual start address setting to viafb_set_primary_address and
viafb_set_secondary_address and make it more flexible to reuse it for
panning. Using central functions makes it easier to follow HW
manipulations.
Remove crt locking as it should be only needed for timing manipulation.
Move iga_path manipulation to via_pci_probe.
Remove memset for screen cleaning as it is currently done only for the
second screen. This is not needed for normal operation but has a little
chance of causing unwanted display artifacts. This can be fixed later
more consistent and more efficient (using viafb_fillrect) if needed.
This is a code clenup, no notable runtime changes expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shrink and merge viafb_update_viafb_par. This removes a lot of duplicated
data in viafb_par. Use the relevant data of fb_info instead. On the way
it removes an inconsistency in handling a second framebuffer which only
worked because viafbinfo1->par is modified to point to the same viafb_par
as viafbinfo->par.
Code cleanup only, no runtime change expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently the start address is set to an initial value every time
viafb_setmode is called.
This is not done consistently along graphic cores and not even the whole
address but often only parts of it. On top of that it seems useless as
the real/final address will be set by viafb_set_start_addr a few lines
later.
Remove this superfluous initalization to shrink register initalization and
as a start to decouple primary and secondary display. Code cleanup, no
notable runtime change expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The current code initializes the register for CX700 chips 2 times due to a
missing break as discovered by Harald Welte.
As CX700 and VX800 have exactly the same register initialization we can
use one for both to avoid duplicated code.
As this is a pure code cleanup no measurable runtime effects are expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the previous version, return values in ioctl() function have been
modified.
[akpm@linux-foundation.org: simplify lcd_disable_raster()]
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Pavel Kiryukhin <pkiryukhin@ru.mvista.com>
Signed-off-by: Steve Chen <schen@mvista.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a framebuffer driver for Qualcomm MSM/QSD SoCs, tested on HTC Dream
smartphone (aka T-Mobile G1, aka ADP1).
Brian said:
I did the original quick and dirty version for bringup. Rebecca took
over and (re)wrote the bulk of the driver, getting things stable for
production ship of Dream and Sapphire, and Dima is currently adding
support for later Qualcomm chipsets (QSD8x50, etc).
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Rebecca Schultz Zavin <rebecca@android.com>
Cc: Dima Zavin <dima@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Previously, the only external (to dispc.c) IRQ handler was RFBI's frame
done handler. dispc's IRQ framework was very dumb: you could only have
one handler, and the semantics of {request,free}_irq were odd, to say the
least.
The new framework allows multiple consumers to register arbitrary IRQ
masks.
Signed-off-by: Daniel Stone <daniel.stone@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Leaving interface clocks enabled causes dss pwrdm to stay in active state
when mpu is in active state. This fix puts dss to sleep state when it is
not needed.
Earlier version broke framebuffer on 24xx. This is fixed by enabling
clocks before trying to access DISPC_IRQSTATUS register.
Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The LCD controller (EPSON S1D13744) supports rotation (0, 90, 180 and 270
degrees) on hardware just setting the bits 0 and 1 of 0x28 register (LCD
Panel Configuration Register). Now it is possible to use this caps only
setting the angle degree on var rotate of fb_var_screeninfo using the
FBIOPUT_VSCREENINFO ioctl.
Fixed-by: Siarhei Siamashka <siarhei.siamashka@nokia.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@openbossa.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add glue to control the OMAP_LDP LCD as a frame buffer device using the
existing dispc.c driver under omapfb.
Patch updated for mainline kernel. Note that the drivers/video/omap
should be updated to pass omap_lcd_config in platform_data. The patch
should also be updated to compile if twl4030 is not selected, and
eventually to use the regulator framework.
Fixed-by: Jarkko Nikula <jarkko.nikula@gmail.com>
Fixed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Florian Tobias Schandinat
Ryan Mallon
Roel Kluin
Sudhakar Rajashekhara
Pavel Machek
Ville Syrjala
Imre Deak
arun c
Jouni Hogander
Daniel Stone
Rodrigo Vivi
Stanley.Miao